EPA-R2-72-005a
  August 1972
Environmental Protection Technology Series
Workbook of Thermal Plume Prediction
                      Volume  I
              Submerged Discharge
                                 National Environmental Research Center
                                 Office of Research and Monitoring
                                 U.S. Environmental Protection Agency
                                 Corvallis, Oregon 97330

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            RESEARCH REPORTING SERIES
Research reports of the  Office  of  Research  and
Monitoring,  Environmental Protection Agency, have
been grouped into five series.  These  five  broad
categories  were established to facilitate further
development  and  application   of   environmental
technology.   Elimination  of traditional grouping
was  consciously  planned  to  foster   technology
transfer   and  a  maximum  interface  in  related
fields.  The five series are:

   1.  Environmental Health Effects Research
   2.  Environmental Protection Technology
   3.  Ecological Research
   4.  Environmental Monitoring
   5.  Socioeconomic Environmental Studies

This report has been assigned to the ENVIRONMENTAL
PROTECTION   TECHNOLOGY   series.    This   series
describes   research   performed  to  develop  and
demonstrate   instrumentation,    equipment    and
methodology  to  repair  or  prevent environmental
degradation from point and  non-point  sources  of
pollution.  This work provides the new or improved
technology  required for the control and treatment
of pollution sources to meet environmental quality
standards.

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                                                           EPA-R2-72-005a

                                                           August 1972
             WORKBOOK OF THERMAL PLUME PREDICTION

                            Volume 1

                       Submerged Discharge
                                 By
                       Mostafa A.  Shirazi
                         Lorin R.  Davis
              Pacific Northwest Water Laboratory
            National Environmental Research Center
                        Corvallis,  Oregon
                        Project  16130 FHH
                     Program Element 1B1032
            NATIONAL ENVIRONMENTAL RESEARCH CENTER
               OFFICE OF RESEARCH AND MONITORING
             U.S.  ENVIRONMENTAL PROTECTION AGENCY
                    CORVALLIS, OREGON  97330
I'orsalo by the Superintendent of Documents, <'.s. 
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                    EPA Review Notice
This report has been reviewed by the Environmental
Protection Agency and approved for publication.
Approval does not signify that the contents necessarily
reflect the views and policies of the Environmental
Protection Agency, nor does mention of trade names or
commercial products constitute endorsement or recommenda-
tion for use.
                            11

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                               i i \L_ i r\
     This workbook contains computational procedures in the form of
nomograms designed to satisfy several needs related to the discharge
of thermal waste into large bodies of water.  They provide estimates
of physical spread and temperature distribution around the discharge
point for the assessment of biological and physical effects of heated
water.  They can be used as guidelines for setting temperature standards
and for monitoring.  Finally, they have utility in pre-design feasibility
analyses and outfall performance estimates.
     Data and analyses from numerous sources constitute the back-up
material for this publication.  An attempt has been made to unify and
present the material in a format that is sufficiently simple for a non-
specialist user.  A number of illustrative examples are presented which
demonstrate the use of each set of nomograms in practical problems.
     The status of analysis at this time is not sufficiently advanced
to encompass a wide range of experimentally verified predictive models.
For this reason, care must be exercised when applying the generalized
nomograms to specific situations.  The major restrictions for each set
of nomograms are outlined in the text which the user is advised to review
carefully.  In general, the nomograms provide meaningful qualitative
information for a wide range of problems of practical interest, but
their use is subject to scrutiny and proper interpretation when applied
to exacting design conditions.
     This is a part of a continuing effort to present the current knowledge
on predictive models to the public.  As more data are obtained in the future,
the nomograms will be refined and updated.  This first volume is devoted to
submerged discharges.  The analysis of surface discharge is the subject of
a separate volume to be  prepared.
                                 iii

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                                 TABLE OF CONTENTS
                                                                       Page

       Preface                                                           in

       List of  Symbols,  Dimensionless Numbers,  and Notations             vi

       List of  Figures                                                 viii

       List of  Tables                                                    ix

   I.   Introduction                                                       1

  II.   Discharge into a  Stagnant, Non-Stratified Water                   11

       A.   Generalized Nomograms                                         11
       B.   Basic Assumptions                                             13

 III.   Discharge into a  Stagnant, Stratified Water                       17

       A.   Generalized Nomograms                                         17
       B.   Basic Assumptions                                             22

  IV.   Discharge into a  Moving, Non-Stratified  Water                     23

       A.   Generalized Nomograms                                         23
       B.   Basic Assumptions                                             25

   V.   Discharge into a  Moving, Stratified Water                         31

       A.   Generalized Nomograms                                         31
       B.   Basic Assumptions                                             33

  VI.   Vertical Discharge into a Non-Stratified, Stagnant,  Shallow  Water 35

       A.   Generalized Nomograms                                         35
       B.   Basic Assumptions                                             35

 VII.   Example  Problems                                                   39

       References                                                        69

VIII.   Appendices

       A.   Nomograms for Discharge into Stagnant,
           Non-Stratified Water, (RNN, MNN)                              71
       B.   Nomograms for Discharge into Stagnant,
           Stratified Water, (RNS, MNS)                                 113
       C.   Nomograms for Discharge into Moving,
           Non-Stratified Water, (RCN)                                  163
       D.   Nomograms for Discharge into Moving,
           Stratified Water, (RCS)                                      197
       E.   Nomograms for Vertical Discharge into Shallow
           Stagnant Water (RNN, Shallow Discharge)                      217
       F.   Auxiliary Materials to Aid in Solving Problems               225

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        LIST OF SYMBOLS, DIMENSIONLESS NUMBERS, AND NOTATIONS


A.  STANDARD SYMBOLS AND DIMENSIONLESS NUMBERS

     D              Jet diameter

     F              Jet densimetric Froude number


                           U.         GU,
                    F - ,..   J       =
     g              Gravitational  constant

                      Ap_     i/o
     6              [ -^-g ]  '   plotted on Fig.  F-l
                        o

     HC             Waste heat load


     k              Velocity ratio  	j_

                                     Uo

     L              Jet spacing on multiple jet diffuser

     Q              Volumetric flow rate

     r              Radial  distance from plume center

     S              Distance along plume centerline

     S.             Stratification number

                          ApQ/D      ATQ/D
                     St   Apa/AZ     ATa/AZ


     T               Temperature

     U               Velocity

     W               Plume width

     X,Z             Coordinates of plume  centerline

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     A()c

     A(  )(

     A(  ),
      Subscripts
      a
      c
      j
      o
                     Linearized  non-stratified  depth
                     defined  in  Fig.  6
                     4r
                     W
                     Density
                     Discharge angle  relative  to horizontal
( )a at Z2 - ( )a at
Ambient
Centerline
Jet
Ambient at discharge depth
B.  SHORTHAND NOTATIONS
     A three-letter code is used for convenient reference.   First
letter designates type of diffuser; second letter,  the  type  of current;
third letter, the degree of stratification.
Diffuser
Configuration
Single
Round
Port
A Row of
Multiple
Round Ports
Condition of Ambient Water
Non-Stratified
No Current
RNN
MNN
Moving
RCN
MCN*
Stratified
No Current
RNS
MNS
Moving
RCS
MCS*
 Nomograms not presented for these cases.
                                 vii

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                             LIST OF FIGURES
No.
la     A Single Round Port Diffuser at an  Arbitrary Angle 6.           4

Ib     The Trajectory and  Width  of a Single Port  Plume for 9  =        4
       0° and F = 10 in a  Non-Stratified,  Stagnant Large Body
       of Water.

2a     Multiple Round Port Diffuser with Equal  Port Spacing.           6

2b     A Multiple Port Plume  with  L/D  = 1.5,  F = 10 in a             6
       Non-Stratified, Stagnant  Large Body of  Water.

3      Single Port Plume Trajectory and Width  in  a Stratified,
       Stagnant Large Body of Water:   e =  0°,  F = 10,  St = 500.        8

4      Single Plume Trajectory and Width in a  Non-Stratified,
       Moving Body of Water:   6  =  0°, F =  10,  k = 1.0'.                 8

5      Temperature Decay Curves  for Various Diffuser Configura-
       tions and Ambient Water Conditions.                             9

6      Linearization of the Natural  Density Stratification and
       the Definition of Z .                                          20

7      The Range of Experimental Parameters and the Extent of
       Extrapolation Reported in this Volume for  Co-flow Data.       26

8      The Range of Experimental Parameters and the Extent of
       Extrapolation Reported in this Volume for  Cross-flow Data.     27
                                   vm

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                              LIST OF TABLES
  Np_.                                                                    Page


   I.   Figure  Numbers  Corresponding to Plume Behavior From Submerged
       Diffusers  Discharging into Stagnant,  Non-Stratified Water.          12

  II.   Figure  Numbers  Corresponding to Plume Behavior from Submerged
       Diffusers  Discharging into a Stagnant, Stratified Ambient Water    18

 III.   Figure  Numbers  Corresponding to Plume Behavior from Single Port
       Submerged  Diffusers Discharging into  Moving,  Non-Stratified
       Water.                                                              24

  IV.   Figure  Numbers  Corresponding to Plume Behavior for Diffuser
       Discharging into Moving and Stratified Ambient Water.               32

   V.   Figure  Numbers  Corresponding to Plume Behavior for a Single
       Port Diffuser Discharging Vertically  Upward into Non-Stratified,
       Stagnant,  Shallow Body of Water.                                   36

  VI.   Variations on Problem 2 Showing Several  Discharge Conditions.      44

 VII.   Variations on Problem 4 Showing Several  Discharge Conditions
       and Diffuser Jet Spacings (Plant Size 1000 MW).                    49

VIII.   Variations on Problem 6 Showing Several  Diffuser Configurations
       and Discharge Conditions.                                          56

  IX.   Variations on Problem 7 Showing Several  Diffuser Configurations
       and Discharge Conditions.                                          58

   X.   Variations on Problem 8 Showing Different Discharge Conditions     60

  XI.   Variations on Problem 10 Showing Several  Discharge Configura-
       tions and  Ambient Conditions.                                      65

 XII.   Variations of Problem 11 Showing Surface Temperatures  for
       Several Discharge Conditions                                       67
                                    IX

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                           I.  INTRODUCTION
     Warm water diffusers are commonly classified into two broad cate-
gories, namely, surface and submerged.  A surface diffuser generally
produces a large zone of relatively high excess water temperature that
is spread in a thin layer above the cool unmixed ambient water.  While
a surface diffuser can be designed to achieve a considerable degree of
mixing with the ambient water, rapid mixing of warm water effluent with
the ambient water is best obtained with a submerged diffuser.
     A properly designed, deeply submerged diffuser can readily produce
adequate mixing and dilution before the plume reaches the water surface.
The factors affecting this design include (1) the diffuser configuration
such as single round port, multiple round ports, or slotted port, (2) the
discharge angle relative to the ambient current and gravity, (3) the dis-
charge excess temperature (or density) above the ambient, and (4) the dis-
charge velocity.  Ambient temperature and density stratifications and the
presence of ambient current all significantly contribute to rapid mixing
and should be carefully considered in making plume analyses.
     When analyzing plume behavior, one is usually interested in the
trajectory of the plume, its width and some information concerning the
local temperature within the plume along its trajectory.  The plume tra-
jectories in this book are plotted with respect to vertical and horizontal
coordinates, both made dimensionless by dividing by the diffuser port
diameter.  The width of the plume is conventionally taken equal to four
standard deviations of the local temperature distribution across the plume
trajectory where this distribution is assumed to be Gaussian.  The informa-
tion on the plume temperature is best given for the center!ine of the plume
                                   l

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and expressed in terms of the excess center!ine temperature difference
along the trajectory divided by the excess discharge temperature difference
 AT
[TY=-].  In all  cases, the temperature difference is calculated locally to
show the excess temperature above ambient.
     The trajectory, the width, and the center!ine temperatures are expressed
in appropriate dimensionless numbers.  Furthermore, the discharge character-
istics such as the velocity, excess temperature (or density), and diameter
are also collected in a dimensionless form called the Froude number.  The
Froude number is the ratio of inertia!  forces due to the jet discharge velo-
city  to the buoyant forces due to the discharge density difference with respect
to the ambient.  Formally, this is expressed  as F = II./( p° gD)  .  This number
                                                     J   Po
has been used extensively as a correlation parameter in plume analysis. Other
dimensionless numbers found useful in correlating plume data are the ratio of
the discharge velocity to the ambient velocity (k) when there is an ambient
current and the stratification number describing the vertical density (or
temperature) gradient within the ambient water when the ambient density is
not constant with depth.  The reader is advised to familiarize himself with
the dimensionless parameters listed immediately behind the Table of Contents.
      The reader should also review the shorthand notations (p.vii)since they
will  be used extensively.  The three letters  of the the shorthand notation refer
to (1) the diffuser configuration, (2) the presence or absence of the ambient
current, and (3) the presence or absence of ambient stratification, respec-
tively.  Single round port diffusers are designated by R and a diffuser con-
sisting of a row of multiple round ports is designated by the letter M.  The
presence of current and stratification are designated by C and S, respectively,

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and their absence is designated by N.  Thus, RNN refers to a single port
diffuser discharging into stagnant, non-stratified ambient water as listed
in the shorthand notation table.  Other combinations readily follow.
     The relative influence of such factors as ambient water conditions
and diffuser configuration on the plume trajectory, width, and centerline
excess temperature  is best illustrated by the typical examples given below.
These examples are  obtained from the nomograms of this volume with only a
slight modification in format.  They are chosen only for the purpose of dis-
cussion at this  point and in order to familiarize the reader with the scope
of this volume quickly and with a minimum of introductory work.  The discharge
Froude number for all examples is taken equal to 10.  The discharge angle with
respect to the horizontal is equal to zero.  When the ambient water is moving,
the direction of the jet discharge is the same as the direction of the ambient
current and  the  discharge velocity is equal to the ambient velocity.  The
stratification number when applicable is taken equal to 500.  The plume
width and centerline trajectories are presented first on individual Figs. 1
through 4 and the centerline excess temperature decays are plotted jointly
on Fig. 5 for the purpose of comparison.
     The centerline trajectory and plume width from a single port diffuser
discharging  into a  stagnant, non-stratified body of water (RNN) is plotted
in Fig. 1.   The  plume travels horizontally a short distance before the
buoyancy forces  lift it upward as shown in the plot.  The plume continues
to rise until it loses buoyancy or reaches the water surface.  Meanwhile,
the plume centerline temperature continues to decay as shown in Fig. 5 by
the decay curve  marked RNN.

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r
                        C3

                        M
                             0 L-.
                              0
20
X/D
Fig. Ib
40


                  Fig. 1 (a) A Single Round Port Diffuser at an
                          Arbitrary Angle 0, and (b) the Trajectory
                          and Width of a Single Port Plume for 0=0°
                          and F = 10  in a ilcn-Stratifiad, Stagnant
                          Large Body  of Hater  (RNN)

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     The center!ine trajectory and plume width from a multiple port
diffuser is plotted in Fig. 2; the ambient water is at rest and is non-
stratified (MNN).  Each port is equivalent to the single port discharge
shown in Fig. 1.  Comparison with this figure shows that the plume from
a multiple port diffuser is wider and the trajectory less steep.  The
reason  for this difference in plume behavior is the interference between
the neighboring plumes in a multiple port discharge.  For a short distance
from the discharge point, individual round plumes issue from each port
and maintain a  trajectory identical to that in Fig. 1.  The single round
plume entrains  ambient water from all sides and grows radially as it moves
upward.  After  merging together with the neighboring plume to form a long
rectangular source, the ambient water is entrained only from the sides and
thus the plume  is restricted to growth in only two directions.  The multiple
port plume also fails to penetrate the ambient water as much as a single
round plume.
     The consequence  of plume interference on the centerline temperature
along a multiple port plume trajectory is a slower temperature decay as
seen from the comparisons of curves RNN with MNN in Fig. 5.  It should be
noted that this example, while demonstrating the dynamics of plume behavior,
does not properly reflect the practical advantages of multiple port diffusers,
In a typical situation when multiple port diffusers are used, the discharge
from each port  is only a small fraction of the total discharge from a single
round diffuser  so that dilution with distance from a multiple port diffuser
can be substantially greater than at the same distance from an equivalent
single port diffuser.

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                                              — D
                    Fig. 2a
Fig.  2  (a) Multiple Round Port Diffuser with  Equal
        Port Spacing, and (b) a Multiple Port Plume with
        L/D = 1.5, F = 10 in a Mor.-Stratified, Stagnant
        Large Body of Water  (MNN)
                                            40  r
                                            20
                                 2b
                                                           20
                                                            X/D
40

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     The plume trajectories for the two cases examined continue to rise
as discussed earlier because the environment is non-stratified.  Within
a stratified environment, the plume trajectory may terminate as shown in
Fig. 3 and often descends slightly from that height due to entrainment of
cooler ambient water from lower depths.  The plume trajectory and width
plotted in this figure are for a single round port diffuser (RNS).  By
comparison with Fig. 1, the plume trajectory is less steep and the plume
growth is substantially greater.  The center!ine plume temperature relative
to the ambient decays at a considerably greater rate.  This is seen from
the comparison of curves marked RNN and RNS as well as MNN and MNS plotted
in Fig. 5.
     The effects of ambient current on plume characteristics are demonstrated
by the plot of trajectory and width for a single port diffuser in moving,
non-stratified water (RCN) in Fig. 4 and by the temperature decay curve
RCN for the same diffuser as plotted in Fig. 5.  The ambient current carries
the plume downstream before it has a chance to spread.  In the same time
it exposes the plume to a greater ambient turbulence resulting in a substan-
tial dilution.
     Recall that the foregoing examples were given for a Froude number equal
to 10 and for a fixed jet to ambient velocity ratio and stratification number.
The numerous nomograms presented in this volume bring out the interrelation-
ships between the discharge angle, discharge Froude number, ambient current,
and stratification for single and multiple port diffusers.  It should be
pointed out that effects  of such boundary conditions as ocean or river
floor, free surface or confining walls and structures are totally excluded
in all but Section VI.  Sections II through VI are devoted to the discussion

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                            40
               X/D
   Fig.  3  Single Port Plume Trajectory and Width
           in a Stratified,  Stagnant Large Body
           of Water:   G = 0°, F - 10, $t = 500 (RNS)
20
              20

             X/D
40
             ig. 4  Single P1ir.fi Trajectory and Hidth  in a Non
                    Strati find,  f.oving Body of Hater: 0 = 0°,
                    k == 1-0
                                       =  10

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o
I—<


DC

UJ
o;
UJ
C-
l/l
00
                                                                                           MNN - L/D = 1 .5   _
       .01  -
                                  40
       60          30          100

DISTANCE ALONG PLUMf CENTERLINE S/D
120
140
150
                                Fig.  5  Temperature Decay Curves for Various  Diffuser
                                        Confiqurations and Antrient Water  Conditions

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and presentation of the nomograms.   Section  VII  is  devoted  exclusively
to illustrative examples for the  use of the  nomograms.   The appendices
contain the nomograms  themselves, as well  as normal  Gaussian curve and
temperature-density relations.
                                 10

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             II.  DISCHARGE INTO STAGNANT, NON-STRATIFIED WATER

     The monograms developed for this idealized situation are presented
in Appendix A.  The 14 cases considered in examples 1  through 4 (Section
VII) illustrate the use of these nomograms.  A description of the nomograms
and basic assumptions underlying their development are presented below.
     A.  GENERALIZED NOMOGRAMS
     Figures A-l through A-35 of Appendix A are generalized nomograms
developed for a discharge from a single port or a multiple port diffuser
into a stagnant, non-stratified large body of water.  The figure numbers
corresponding to four different discharge angles and four diffuser port
spacings are listed in Table I for easy reference.
     The center!ine trajectories of the heated plume are plotted with
respect to the  horizontal (X/D) and vertical (Z/D) space coordinates for
discharge Froude numbers  (F) ranging from 1 to 600.  For  a 90-degree dis-
charge angle, the centerline trajectory is along the vertical space coordinate
only and thus the excess temperature decay lines are given with respect to
that coordinate alone.   Superimposed on these curves are constant width lines
that vary with  discharge Froude number and the vertical space coordinate.
For discharge angles other than 90 degrees, two identical centerline trajec-
tory nomograms  are given.  Superimposed on the first are the constant excess
centerline temperature lines and on the second the constant plume width lines.
     All trajectory lines are dash-marked.  The spacing between the asterisks
on the centerline trajectories is equal to 20 diameters.
                                     11

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                    TABLE I
Figure Numbers  Corresponding  to Plume Behavior
  From Submerged  Diffusers  Discharging into
        Stagnant,  Non-Stratified Water
Dif fuser
RNN
Single
Jet



CJ
CD S-
r— GJ
CX (/>
•r~ 13
J? '<-
"zr.
•"-T"


LO
II
Q
_J
O
II
cn
_j
o
Csl
II
Q
_J
0
CO
1!
0
	 1
Discharge Angle
0°
A-1,2

A-8,9

A-15,16


A-22,23



A- 29, 30

30°
A-3,4

A-10,11

A-17,18


A-24,25



A-31S32

60°
A-5,6

A-12,13

A-19,20


A-26,27



A- 33, 34

90°
A-7

A-14

A-21


A- 28



A-35

                    12

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     B.  BASIC ASSUMPTIONS
     The nomograms have been developed from the governing mass, momentum,
and energy equations as applied to a buoyant thermal plume.  The solutions
have been obtained after applying the well known integral method to the
differential equations.  Detailed derivations, assumptions, and computer
programs are given in Reference 1 and are not repeated here.
     Briefly, the integral technique requires that the velocity, tempera-
ture, and density profiles within the heated plume be specified so that
these quantities can be integrated over the plume cross-section.  It also
requires that after a short developing distance the profiles maintain
their form throughout the trajectory of the plume.  Numerous laboratory
experiments have demonstrated that the velocity profile is normally dis-
tributed near the discharge point.  Similarly, temperature distribution
measurements in the heated plume demonstrate that the temperature and
density profiles are also normally distributed.
     The temperature profile within the plume of a round jet is locally
flatter than velocity profile.  The degree of the relative spread of the
temperature and density profiles as compared with the velocity profile
is  reflected in a constant turbulent Schmidt number taken equal to 1.16
in  this study.
     In the analysis, ambient turbulence  is assumed not to contribute
directly to dilution.  It is assumed further that the rate of entrainment
of  the ambient fluid entering the plume radially is proportional to the
local center!ine velocity and hence the incremental rate of volume flow
through the plume cross-section.  The proportionality constant commonly
known as the entrainment coefficient is assumed equal to 8.2 percent for
the entire plume trajectory for a round jet.
                                  13

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     The analysis of Reference 1  assumes that the initial  development
region between the source and the point where Gaussian profiles may
be used is about 6.2 diameters downstream.   It is further assumed
that buoyant forces in this region are negligible.   These assumptions
are good for Froude numbers above about 10  but at lower Froude numbers
the development length becomes less and the initial  deflection due to
buoyancy becomes apparent.  The curves presented in  this section include
modifications to the development length for Froude  numbers less than 10
as determined from Reference 2.  This  modification was applied uniformly
to all discharge angles even though Reference 2 was  developed specifically
for the horizontal angle of discharge.  The initial  deflection angles for
the stated Froude numbers were modified as  suggested in the above reference
for the horizontal discharge and by interpolation between  zero and the
vertical for 30 and 60 degree discharge angles.
     Multiple diffusers are handled in the  analysis  of Reference 1  by
considering the jets as round up to some transition  region and as a
slot after that.  The transition point used in this  work was where the
entrainment of the round and slot jets were equal.   This sudden transition
from one solution to another results in a slight irregularity in tempera-
ture at the transition point.
     The entrainment coefficient and turbulent Schmidt number used here
for slot jet were .16 and 1.00, respectively.   The sensitivity of the
solution to the accuracy of turbulent  Schmidt number and entrainment
coefficient was tested by varying them plus and minus 10 percent from
the values given above.  It was found  that  varying the entrainment coeffi-
cient by 10 percent changed the position of the plume by about 2 percent;
                                  14

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the width and center-line temperature of the plume by about 10 percent.
Varying the turbulent Schmidt number by 10 percent changed the location
of the plume by about 5 percent, jet center!ine excess temperature by
about 10 percent, and plume width by about 1  percent.
                                   15

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           III.  DISCHARGE INTO STAGNANT, STRATIFIED WATER
        The    nomograms   that were prepared for this situation are
presented in Appendix B.  Example 5 and example 6, cases 1 through 6,
Section VII, illustrate the use of the nomograms.    A  description
of the nomograms and basic assumptions underlying their development
are presented  below.
     A.  GENERALIZED NOMOGRAMS
     Figures B-l through B-48 of Appendix B are generalized nomograms
developed for  single port or multiple port diffusers discharging into
a stagnant, stratified large body of water.  The figure and identifica-
tion numbers corresponding to four different discharge angles, three
discharge elevations, and four diffuser port spacings are listed in
Table  II for easy reference.
     When the  ambient is stratified, several other variables come into
play making it difficult to express solutions in the general form used
for the non-stratified case.  These variables are density and temperature
profiles within the ambient and depth of discharge relative to the strati-
fied region.
     Most large bodies of water are stratified to some degree, and even
weak stratification can have a profound effect on the plume behavior.
As the plume rises in a stratified environment, it initially entrains
cool water and  carries it into warmer layers of water.  The plume
temperature continues to drop while the temperature of its surrounding
continues to increase with elevation.  Meanwhile, the plume decelerates
due to the loss of buoyancy, but continues rising because of its excess
momentum even  when its center!ine temperature at a point along its
trajectory equals the local ambient temperature.  This excess momentum
                                  17

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                           TABLE II
 Figure Numbers Corresponding to Plume Behavior From Submerged
Diffusers Discharging into a Stagnant, Stratified Ambient Water
Diffuser
RNS
MNS
L/D=1.5
MNS
L/D=10
MNS
L/D=20
ZS/D = 0
0=0° 0=30° 0=60° 0=90°
B- 1 B- 2 B- 3 B- 4
B-13 B-14 B-15 B-16
B-25 B-26 B-27 B-28
B-37 B-38 B-39 B-40
ZS/D = 10
0=0° 0=30° 0=60° 0=90°
B- 5 B- 6 B- 7 B- 8
B-17 B-18 B-19 B-20
B-29 B-30 B-31 B-32
B-41 B-42 B-43 B-44
ZS/D = 30
0=0° 0=30° 0=60° 0=90°
B-9 B-10 B-ll B-12
B-21 B-22 B-23 B-24
B-33 B-34 B-35 B-36
B-45 B-46 B-47 B-48

-------
carries the plume from this point to its terminal height; i.e., the
maximum height of rise, while the centerline temperature continues to
drop below the local ambient temperature.
                         Ap /D
     The parameter, S. =     . z  may be used as a correlation parameter
                           a
for stratification, where Ap /D is the difference in density between the
initial jet and the ambient divided by jet diameter and Ap /AZ is the
                                                          a
local ambient density gradient.  If the coefficient of volumetric expan-
                                                                AT /D
si on is assumed constant, this parameter can be written as S. =  T  .• -,.
                                                                  a
Table F-l  in Appendix F provides relationships between the ocean water
density and temperature for several salinity levels.  This table may be
used for estimating St<
     Although the computer program developed in Reference 1 can handle
any arbitrary stratification profile, it is not practical to consider all
possible cases here.  Many profiles can be approximated, however, by the
combination of a non-stratified region and a linearly stratified region
as  shown in Fig. 6.
     For the  sample case shown on  Fig. 6, the natural water density strati-
fication is shown as  a  solid line.  Water density is constant from the
bottom to  a depth of  Z  = 20 ft. above the bottom.  From this point all
the way to the water  surface the ambient water density decreases non-
linearly as indicated.  The discharge is assumed to take place at Z = 10
ft. from the bottom.  In order to  use the nomograms for the analysis of
plume characteristics we must:  (1) linearize the natural density curve
by drawing a best straight line through it, (2) find the slope of this
line for the calculation of S., and (3) estimate Z  which is the depth of
the non-stratified water above the discharge point that results in the
                                   19

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                             STRATIFICATION
                             1st Approximation, Z ^

                             2nd Approximation, Z «

                                      Water Surface
20 ft

10 ft
                            ~T
                           M
                                  CO
                                       Discharge
                                       Level
                                       Bottom
                                                       0) C
                                                      •r- O)
                                                      M- O


                                                       (O CD
                                                       S- •»->
                                                      •l-i rx3
                                                      CO 3

                                                      M- +J
                                                       O C

                                                       o> -r-
                                                       C JO
                                                       o g
                                                      fxl =2
                                                        O
                                                      O -r-
                                                      C -M
                                                      C -M
                                                      O 03
                                                      Jvl i-
Ambient Water Density
     Fig.  6   Linearization of  the  Natural Density
             Stratification and  the Definition of  Z
                              20

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process of linearization.  It is best to try more than one way to linearize
the density curve so that a range of possible solutions is obtained.  Two
such approximations are  indicated in Fig. 6 leading to values of Z   and Ic
                                                                  Si      S2
for the first and second approximations, respectively.
     The nomograms are presented for several values of Z  and several slopes.
Both parameters are expressed in dimension!ess numbers.  They are Z /D and
the stratification number S. , respectively.  In this report values of Z /D
= 0, 10 and 30 and St =  100, 500, 1000, and 2500 have been considered.
     Since it is not possible to present complete temperature-trajectory
solutions for all combinations, the results for discharge angles of 0, 30,
and 60 degrees are presented as follows:  For each Froude number and strati-
fication parameter a trajectory is given which is terminated at the point of
maximum rise.  Since the plume centerline temperature varies with Froude number
as well as with stratification number, and since four values of each parameter
are presented in a single nomogram, constant temperature lines similar to
those  for non-stratified case (Appendix A) cannot all be drawn without causing
the chart to become overly complex.  Only the 5 percent temperature lines,
        ATc
that is -rtp- = .05, are drawn and appropriately marked for the S, they represent.
        Alo
Additional information on temperature is provided by plus (+) marks on each
trajectory to show the plume centerline coordinate where the excess temperature
                                          ATc
above  ambient becomes zero,  that is where -TJ— =0.   In order to obtain an idea
                                            o
of the temperature decay along the plume in a typical situation, the reader
should refer to Figure 5.
                                      21

-------
     For a 90-degree discharge angle where the trajectory is vertical,
curves are presented giving the terminal  height and the 5 percent excess
temperature point as functions of Froude  number with S.  as a parameter.
     B.  BASIC ASSUMPTIONS
     The nomograms for this case have been prepared from the solution
of the same set of equations discussed in Section  III-B and Reference
1.  All basic assumptions of that section apply here as  well.   The only
exception is that the ambient water is assumed stratified with  respect to
density.  This stratification is assumed  to  be linear and could be the
result of temperature or salinity variations with  depth.
     It should be repeated here that the  restriction just discussed is
imposed to facilitate presentation  of generalized  nomograms.   It is not
a basic limitation.   The computer program of Reference  1  allows for arbitrary
density as well  as temperature  profiles in the ambient water.
                                 22

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           IV.  DISCHARGE INTO MOVING, NON-STRATIFIED WATER
     The nomograms for discharge into moving, non-stratified ambient
water are presented in Appendix C.  The 11 cases considered in examples
7, 8, and 9 (Section VII) illustrate the use of the nomograms.   A
description of the nomograms and the basic assumptions underlying their
development are presented below.
     A.  GENERALIZED NOMOGRAMS
     Figures  C-l through C-30 of Appendix C are generalized nomograms
developed for a single port diffuser discharging into moving, non-
stratified ambient water.  The figure numbers corresponding to four
different discharge angles (9) and a wide range of velocity ratios
(k)  are  listed in Table  III for easy reference.
     The discharge angles are referenced with respect to the horizontal
space coordinate, thus at zero discharge angle, the jet discharge and
ambient  current are in the same direction.  At a 90-degree discharge
angle, the jet discharge is vertical and perpendicular to the direction
of the ambient current.
     The center!ine trajectories of the heated plume are plotted with
respect  to horizontal  (X/D) and vertical  (Z/D) space coordinates for
selected discharge Froude numbers.  Superimposed on the center!ine tra-
jectories are the excess center!ine temperature lines and constant plume
width lines,  each on a separate chart for a given velocity ratio.
     The limited range of Froude numbers and velocity ratios presented
reflect  the scarcity of data with ambient current.  The absence of
generalized nomograms for multiple diffusers (MCN) is also evidence of
a lack of appropriate data.
                                  23

-------
                               TABLE  III
    Figure Numbers  Corresponding  to  Plume  Behavior  From Single Port
   Submerged Diffusers  Discharging into  Moving,  Non-Stratified Water
 k

 0.5

 1

 2

 4

 6
12

16








	
Discharge Angle
Co-flow
9=0°
C-1,2
C~3,4
C-5,6
C-7,8
C-9,10



Cross -flow
0=90°


C-19,20
C-21,22
C-23,24
C-25,26
C-27,28
C-29,30
9=30°


C-11,12
C-13,14




9=60°


C-15,16
C-17,18




                                 24

-------
     The reader is urged to carefully study the basic assumptions that
follow  before attempting to use the nomograms.
     B.  BASIC ASSUMPTIONS
     The nomograms in this set have been drawn from three different
sources and thus are subject to different limitations.  However, they
are all limited to uniform velocities in the ambient current.  The
three sources are:  Reference 3 for co-flow (6 = 0°) data, Reference
4 for the cross-flow (9 = 90°) data, and References 5 and 6 for the
analysis of the remaining (i.e., 30 and 60 degree) nomograms.
     The co-flow data obtained from Reference 3  are from a compre-
hensive set of experiments with heated and salt water jets performed
in a turbulent channel  flow.  The discharge Froude number and the jet
to ambient velocity ratio (k) were varied among a wide range of values
shown  by the  solid line in Fig. 7.  Empirical equations developed by
correlating the experimental data were derived for plume width, center!ine
temperature and plume trajectory.  The correlations were used in the
preparation of the nomograms for a range of parameter space both inside
and outside the experimental range.  The dashed line in Fig. 7 show the
extent of extrapolation.
     Reference 4 presents a comprehensive set of cross-flow (9 = 90°)
data obtained  in laboratory experiments.  A wide range of discharge
Froude numbers and jet  to ambient velocity ratios (k) were tested.  The
range of parameter space for k and Froude number are plotted in Fig. 8
as indicated  by the solid line.  The data from these experiments were
correlated to form expressions for the centerline temperature, the plume
width and the plume rise.  The correlations were used in the preparation
                                  25

-------
(X.
UJ
CO
UJ
o
:D
o
Cr~
U-
                    2            4            6           8           10
                                       Discharge Velocity

                                       Anibient Velocity

           Fig. 7  The  Range  of  Experimental  Parameters and the  Extent  of
                   Extrapolation Reported in this Volume for Co-flow  Data

-------
   160
   140
   120
   100
o;
LU
CO



^   80

p

o
o;
    60
    40-
    20 b
                L.
                                      EXTRAPOLATION
                                        EXPERIMENTAL  RANGE
                                 6


                               k  =
     8        10

Discharpe Velocity

Ambient Velocity
12
14
16
                Fig. 8  The Range of Experimental Parameters and the Extent
                        of Extrapolation Reported in this Volume for
                        Cross-flow Data

                                     27

-------
of nomograms for a range of parameter space both inside and outside
the experimental  range.   The limits of the extrapolation are plotted
in dashed lines in Fig.  8.
     The use of nomograms for co-flow and cross-flow outside the
experimental range should be made with caution and the results should
be regarded as qualitative.
     Experimental  data are  scarce for the intermediate discharge angles
of 30 and 60 degrees with respect to the direction of an ambient current.
However, an attempt has  been made in this volume to gain a qualitative
understanding of the plume  behavior from the interpolation between the
co-flow and cross-flow data.  The interpolation scheme used for this
purpose was the analysis reported in References 5 and 6.  It is outside
the scope of the present work to discuss at length the analytical  methods
cited and the procedure followed to use such analysis for interpolation.
While a brief discussion is outlined below, the reader should  keep in
mind the qualitative nature of all  results obtained from interpolation.
     The analysis of References 5 and 6 offers the most comprehensive
treatment to date of the submerged  jet discharge.  It handles  generalized
space coordinates for a three dimensional  plume and it includes generalized
entrapment functions that depend on the local  Froude number,  plume center-
line velocity, and the local plume  orientation.
     This analysis has been shown to have general agreement with a wide
range of experimental data.  It agrees well with the experimental  data
for cross-flow of Reference 4 but only at high values of k. The analysis,
however, does not agree with the co-flow data of Reference 3.   In fact
                                  28

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it even fails to predict the proper qualitative trend of the plume
behavior with respect to k and Froude number for co-flow discharge.
Consequently, the analysis of Reference 5 and 6 cannot be used directly
for predicting the plume behavior for the intermediate angles of 30
and 60 degrees.
     The approach used herein was to force the analysis of References
5 and 6 to agree with data for co-flow discharge as closely as possible
without disrupting the acceptable qualitative agreement it is already
capable of with respect to cross-flow discharge.  Once this was accomplished
satisfactorily, the analytical model was used to predict the plume behavior
between the  co-flow and cross-flow discharge angles of 30 and 60 degrees.
In other words, the analytical model now was used as a powerful interpolat-
ing scheme between two sets of experimental data.
      It should be of  interest to some readers to know that the analysis
of References 5 and 6 was fitted to the experimental data of Reference
3 by  manipulating the ambient turbulence terms that were originally
neglected  in those calculations.  This points to an intellectually curious
subject, namely; that the ambient turbulence terms while not affecting
the cross-flow prediction, does affect and indeed improve the co-flow
prediction in the analysis of References 5 and 6.  This observation has
been  verified experimentally  in the cross-flow  analysis of
Reference 4  and the recent co-flow data of Reference 3, respectively.
      There is no published comprehensive analysis of the multiple jet
diffuser system with  ambient current.  The available data are scattered
and fragmentary.  It  is  noted, however, that the behavior of a multiple
port  diffuser up to the point of plume interaction can be obtained from
the analysis of a single port.  This is demonstrated  in examples 7 and 9
of Section VII.
                                  29

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             V.  DISCHARGE INTO MOVING, STRATIFIED WATER
          The  nomograms for  discharge into moving, stratified ambient
water is presented in Appendix D.  Example 10, cases 1  through 6, of
Section VII, illustrate the use of the nomograms.    A  description  of
the nomograms and the basic assumptions underlying their development are
presented below.
     A.  GENERALIZED NOMOGRAMS
     Figures D-l through D-16 of Appendix D are generalized nomograms
developed for  single port diffusers discharging at 0, 30, 60, and 90
degrees  into moving and stratified ambient water.  The figure numbers
corresponding  to two different jet to ambient velocity ratios and two
ambient  stratification  numbers are listed in Table IV for easy reference.
     The  discharge angles are referenced with respect to the horizontal
space  coordinate so that at zero degree discharge angle, the jet dis-
charge and  the ambient  current are in the same direction.  At 90 degrees
discharge angle the jet is  perpendicular to the direction of the ambient
current.
     The nomograms are  presented in pairs, giving the temperature chart
and  the  width  chart on  consecutive figures.  For each discharge angle,
the  center!ine trajectory of the plume is plotted with respect to the
horizontal  and  vertical space coordinates.  If the maximum height of
rise occurs  at less than 200 diameters downstream of the discharge, it
is marked by a  cross in the nomogram, and the trajectory is terminated.
     Superimposed over  the  center!ine trajectories are the constant
center!ine  excess temperatures and constant width lines.  If the plume
                                  31

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                         TABLE  IV

Figure Numbers  Corresponding  to  Plume  Behavior  for  Diffuser
   Discharging  into  Moving  and  Stratified  Ambient Water

st
100
500

k =
F = 10
D-1,2
D-9,10
-. 	 	
= 2
F = 30
D-3,4
D-11,12

k =
F = 30
D-5,6
D-13,14

= 4
F = 75
D-7,8
D-15,16

                            32

-------
has entrained enough cool waters from the lower elevations so that its
centerline temperature is less than the local ambient temperature, then
an appropriate negative excess temperature is designated.
     The limited range of Froude numbers, stratification numbers, and
velocity ratios reflect the uncertainty in these data due to lack of
adequate experimental verification.  The reader is urged to study the
basic assumptions  that follow before attempting to use the data.
     B.  BASIC ASSUMPTIONS
     All nomograms presented in this section were obtained analytically
from the modified  programs of References 5 and 6 and thus are subject
to all  limitations discussed in Section IV-B concerning the intermediate
injection  angles of 30 and 60 degrees.  Unlike the development of Section
IV where comprehensive experimental data for co-flow and cross-flow were
available  and were used  to interpolate for 30 and 60 degrees, such data
for stratified  cases are  scarce indeed and thus all nomograms of this
section should  be  used with caution.
                                  33

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 VI.   VERTICAL DISCHARGE INTO NON-STRATIFIED STAGNANT SHALLOW WATER
                       (A SPECIAL CASE OF RNN)
     The nomograms for the discharge into a  non-stratified,
stagnant, shallow body of water is presented in Appendix E.  The four
cases considered in example 11 of Section VII illustrate the use of
the nomograms.
     A.  GENERALIZED NOMOGRAMS
     Figures E-l through E-6 of Appendix E are nomograms developed for
a single port diffuser discharging vertically upward into a shallow
body of water.  Only a selected number of discharge conditions and Froude
numbers are presented.  The corresponding figure numbers of these cases
are listed in Table V.  Nomograms are given for the following types of
information:  (1) the centerline excess temperature in relation to the
ambient from the discharge point to the water surface, (2) surface water
temperature directly above the diffuser at the center of the boil and
along  concentric circles around this point, and (3) isotherms throughout
the plume.
     The discharge depth enters these calculations as a new parameter
and it strongly affects the results.  No attempt has been made at this
time to include this parameter in a unifying correlation function, nor
has an  effort been made to cover a wide range of discharge conditions
and ambient stratification.
     B.  BASIC ASSUMPTIONS
     A generalized submerged plume program that adequately analyzes the
combined subsurface transition and the surface spreading zones of the
plume  is not yet available.  The nomograms of this section are the results

                                  35

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                             TABLE  V
Figure Numbers  Corresponding  to  Plume  Behavior  for  a  Single Port
 Diffuser Discharging  Vertically Upward  into  Non-Stratified,
                   Stagnant,  Shallow Body  of  Water
Discharge
Depth
Z/D
5
8.4
10
40
F = 1, 5, 25, 100
Center! ine
Temperature
E-3

E-2
E-l
Surface
Temperature


E-4

Isotherms
F = 45

E-5


F = 51
E-6 \



                             36

-------
of an analysis of the transition zone of the submerged plume as it
reaches the water surface.  The analysis is specifically suitable for
evaluating the plume behavior from a very large diffuser discharging
vertically in shallow water.  This is a situation where effects of
water surface become important and analyses of previous sections become
invalid.  This is particularly true when submergence is on the order of
10 diameters or  less.   Since numerous examples of this type of diffuser
are  found among  coastal  power plant discharges, a special consideration
of the  problem is in order.
     The model for  shallow discharge used here was developed for EPA
and  is  described in Reference 7.   It consists of a finite difference
solution of a two-dimensional axisymmetric plume in ambient water that
is at  rest.  Like many  mathematical models of fluid flow phenomena,
this model requires information on the turbulence characteristics of
the  flow  field and  the  results are altered for various assumptions made
on that input.   It  suffices  to state, however, that as a consequence
of the  input  variables  used  in this model reasonable predictions are
obtained.
                                   37

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                       VII.  EXAMPLE PROBLEMS
     Numerous examples are given in this section to familiarize the
reader with the use of the nomograms.  Even though an attempt was made
to develop more or less realistic problem statements, the examples should
not be construed as representing a preferred design or recommended tempera-
ture zone.  The numbers in these examples have been conveniently rounded off.
Example Problem 1
Given:
     A 500 MW nuclear power plant is located on a open coastline.  A
single port  submerged diffuser is used to discharge the condenser cooling
water into the ocean.  The following design data apply:
                                               Q
     a.   Waste heat to cooling water = 3.2 x 10  Btu^hr
     b.   Condenser AT  (AT  ) = 20° F
     c.   Discharge angle 6 = 0.0°
     d.   Discharge velocity U. = 10 ft/sec
     e.   Ambient water is  stagnant and non-stratified (RNN), T. = 50° F
                                                              a
          and salinity = 25 ppt
     f.   Discharge depth IQ = 200 ft
Determine:
     1.   The location of the plume where the centerline temperature is
2°  F above the ambient (i.e., 52°).
     2.   The centerline temperature and plume width when the plume
reaches the  surface.
                                  39

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Solution:


Part 1


     The discharge Froude number is  obtained  first from the above infor-



mation as follows:


                    	3.2  x 109 Btu/hr	

          C/(PCA Q) = (^ 1b/ft3)(1.0 Btu/lb-°F)(20°F)(3600 sec/hr)
                 Q  - 700 ft3/sec




     A - n/U  - 70Q ft3/sec  = 70 ft2
     A   4/Uj    10 ft/sec     /U Tt




     D = (4A/u)1/2 = (4 x 70/3.14)172  =  9.5  ft



where Q is the volumetric flow rate of water and  U.  is  the  discharge
                                                  J

velocity in cfs and fps respectively,  H   is  the waste heat  load  in



Btu/hr, p is the water density,  c is the heat capacity  of water  usually



taken as unity and AT  is the initial  temperature difference,  or the



condenser AT.

                                  Ap      -i/o        Ap      1/2

     The Froude number equals l)./(—-  gD)     , where (—- g)   '  = G ~ 3.7



is obtained from Fig. F-l  in Appendix  F  for  S = 25 ppt, T  =  50° F and
                                                         a


ATQ = 20° F.



     Thus,  F = GU. D"1/2 = 3.7 x 10 x  (9.5)"1/2
                 J


           F = 12



     For a  single port diffuser  discharging  into  stagnant,  non-stratified



water (RNN) with a discharge angle of  zero with respect to  the horizontal,



use nomogram A-l  to find location of the plume where the  centerline tempera-


ture is 2°  F above ambient.
                                  40

-------
     The  center!ine excess temperature ratio corresponding to 2° F is,
                       ATc
                       —c- = 2/20 = 0.1
                       AT
                                     ATc
     Entering Fig. A-l at F = 12 and ~- = 0.1, the location of the
                                       o
plume centerline is found to be
                       X/D = 29 and Z/D - 15
     Therefore, since D = 9.5 ft,
          X = 275 ft and Z = 142 ft (answer to Part 1)
Part 2
     Since the discharge depth is 200 ft and D = 9.5 ft, water surface
is reached when Z /D = 200/9.5 = 21.
                                                      ATc
     Fig. A-l at Z/D = 21 and F = 12 gives a value of ^p  of about 0.08
                                                        o
at the surface.  Therefore, the centerline excess temperature as it reaches
the  surface  is 50 + 1.6 - 51.6° F.
     Entering Fig. A-2 at Z/D =21 and F - 12, the value of W/D is found
to be about  15.  Thus, the plume width at the surface is 15 x 9.5 - 142 ft.
     It  should be noted the nomograms, except Appendix E, exclude the
effect of surface interference.  Thus, surface temperatures calculated
from these nomograms  in this and other examples are underestimated.
                                  41

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Example Problem 2
Given:
     A 1000 MW nuclear power  plant  is  located on an open  coastline.   A
submerged single port diffuser is used  to discharge the condenser cooling
water.  The following design  data apply:
                                               g
     a.  Waste heat to cooling water =  6.4  x 10 Btu/hr
     b.  Condenser AT (AT0) = 20° F
     c.  Discharge angle  0 =  30°
     d.  Discharge velocity U. = 10 ft/sec
                             J
     e.  Ambient water is stagnant  and  non-stratified, Ta  =  50°  F and
         salinity = 25 ppt
     f.  Discharge depth  ZQ = 150 ft
Determine:
     1.  The location of  the  plume  when the centerline temperature is
2° F above  ambient.
     2.  The centerline temperature and plume width when  the plume reaches
the surface.
Solution:
Part 1
     The Froude number is calculated following  the procedure of  problem 1,
i-e.,                           Q
                         6.4  x 10*  Btu/hr
          (64  Ib/ft3)(1.0  Btu/lb-°F)(20°  F)(3600  sec/hr)
                         Q  *  1400  ft3/sec
      A =    HOP  ft3/sec     _   .      2
      A       10  ft/sec      "   14°  ft
      D =   (4  x 140/3.14)1/2  = 13.3  ft
                                42

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     F = 3.7 x 10 x (13.3)"1/2  * 10
     For a single port diffuser discharging into stagnant, non-stratified
water (RNN) with a discharge angle e = 30°, use nomogram A-3 to find loca-
tion of plume when centerline temperature is 2° F.  Entering Fig. A-3 at
F = 10 and  ^Jc  = 2/20 = 0.1, it is found that
            AT0
                      X/D  *  20 and  Z/D  «  25
Since D = 13.3 ft, therefore
                      X * 270 ft and Z = 330 ft
Note that since  the total depth  (Z ) is only 150 ft, the plume cannot
extend  to 330 ft above the discharge.  Thus, the plume centerline tempera-
ture will exceed 2° F above the ambient at all points along its trajectory.
If  the  AT   were  restricted to 2° F before or at the surface, other discharge
configurations or discharge conditions than specified in this problem would
be  required.
Part 2
     The  plume centerline temperature at the surface is found from Fig.  A-3
for F = 10  and Z/D = 150/13.3 =11.  The percent excess temperature at  this
location  is  ATc  = 0.25.  Therefore, ATr = 0.25 x 20 = 5° F giving a plume
              iTo
centerline  temperature at the surface of 50 + 5 = 55° F.
     The width of the plume is determined from Fig. A-4.  Entering this
figure  with Z/D  = 11 and F =  10, it is found that
                   W/D * 6 or W = 6 x 13.3 * 80 ft
     Variations  of Problem 2  for different discharge angles and discharge
volume  from a single diffuser have been solved to see if discharge condi-
tions other than the single port at 30 degrees could meet the 2° F surface
                                 43

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 temperature difference requirement.  The results  for  the  above example
 and  five  additional  cases examined are tabulated  in Table VI.   It is
 seen that case  number 4  satisfies the above requirement.    This case is
 for  two ports each discharging 700 cfs horizontally.  The ports are
 located far enough apart so that their plumes do  not  interact.   This
 condition is satisfied if the spacing between ports is  made greater
 than the  predicted plume width at the water surface.
                              TABLE VI
      Variations on Problem 2 Showing Several Discharge Conditions

 Case
 No.  of Ports
 Port Diameter (ft)
 Froude Number
 Discharge Angle 6 (degree)
 Plume Location for
 ATc  = 2°  F
 Tc at Surface (°F)
 Width at  Surface (ft)
 Figures Used
 Conditions Met?




:gree)
X(ft)
Z(ft)




1
1
13.3
10
30
270
330
5
80
A-3,4
No
2
1
13.3
10
0
320
230
2.4
134
A-1,2
No
3
1
13.3
10
90
0
430
8
67
A-7
No
4
2*
9.5
12
0
275
142
1.9
114
A-1,2
Yes
5
2*
9.5
12
30
200
230
3.2
76
A-3,4
No
6
2*
9.5
12
90
0
300
6
60
A-7
No
*The plumes from the two ports are assumed to be non-interacting.
                                 44

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Example Problem 3
Given:
     a.  Discharge Froude No. F = 15
     b.  Discharge angle 6 = 60°
     c.  Initial temperature difference AT  = 20° F
     d.  Single port diffuser
     e.  The receiving water is stagnant and non-stratified (RNN)
Determine:
     1.  The location and width of the plume where the centerline tem-
perature 1s 2°  F above the ambient.
     2.  At this location, find the radial distance from the center of
the  plume  to the point where the plume has a temperature which is 1° F
warmer than the ambient.
Solutions
Part 1
      For the dilution to a centerline excess temperature AT  = 2° F, the
                                    AT      ?
dimensionless  temperature ratio is  	<1  = ^•= 0.1.  Using Fig. A-5 for
RNN, a discharge angle (6) of 60 degrees, a Froude Number F = 15, and a
centerline excess  temperature ratio     c  = o.l, one obtains X/D - 14 and
                                      AT0
Z/D  -  30.  Using these trajectory values with Fig. A-6 gives W/D = 13.
Part 2
      In order  to solve for the radial distance at this point in the tra-
jectory to the  1°  F excess temperature line, the Gaussian distribution
curve  given on  Fig. F-2 is used.  This figure presents the approximate
radial temperature distribution within the plume as a fraction of the
maximum excess  temperature at the center.  The radial parameter n = 4r/W,
                                  45

-------
where r is the radial distance from the center of the plume and W  is  the
local plume width (or diameter).  T -T  is the excess temperature  within
                                   r   3
the plume which depends on the radius and T -T  is the center!ine  excess
                                           C  cl
temperature at this point in the trajectory.  For this problem,  r	a _
                                                                V^T
1/2 = 0.5.  At this value on Fig. F-2, the value of n is found to  be  1.2.
Using n = 4r/W and W/D = 13 from Part 1 one finds the desired value of the
radial distance from the center of the plume to be r/D - 1.2 x 13/4 = 4.5.
     The procedure in this example can be used to generalize all  tempera-
ture and width nomograms presented in this volume.  Namely, based on the
center!ine temperature data of nomograms and the Gaussion distribution
curves of Fig. F-2, the temperature at an arbitrary radial  distance in a
plume cross-section can be found.
                                  46

-------
Example Problem 4


Given:


     The problem statement is the same as given in Problem 2 except


a multiple port cliff user is used that consists of a single row of 10


equal jets spaced 10 diameters apart, i.e., MNN with L/D = 10.


Solution:


Part  1


      From Problem 2, the total volumetric flow rate and the total  dis-

                           o                         p
charge area are Q = 1400 ft /sec and  A.  .  ^ = 140 ft , respectively.



      For ten equal ports, the discharge area per port and the single port


diameter are:





          A'   =  No. ofports  =  140/1°  =  14 ft2 Per port





                     D  =  (4 x 14/3.14)1/2 = 4.2 ft



      With this information and for the values of G and U. of Problem 2,
                                                        J

the  discharge  Froude number becomes:


                   F  = 3.7 x 10 x (4.2)"1/2  = 18
      The  plume  location when the centerline excess temperature is 2° F


 above ambient is obtained from Fig. A-17 for a multiple port diffuser


 with  L/D  =  10 and  e = 30° discharging into a stagnant, non-stratified
 ambient  (MNN  L/D =10).  Entering this figure with F * 18 and   £  =
                                                               ATO

 0.1, the  location of the plume is found to be at


                     X/D  *  25 and Z/D  =  20
                                 47

-------
     For a port diameter  of  4.2  ft, the absolute center! ine  location is
at X = 105 ft and Z -  85  ft  measured from the discharge  point.
Part 2
     With a total depth of 150 ft  and a port diameter of 4.2  ft,  the
dimensionless depth is ZQ/D  - 150/4.2 = 36.  Entering Fig. A-17 with
Z/D = 36 and F * 18, one  finds the center! ine excess temperature  ratio
AT
     Therefore, the excess  temperaure  in  the center of the  plume  as  it
reaches the surface is  0.06 x  20  =  1.2° F.
     Entering Fig.  A-18 with Z/D  *  36  and F * 18, it is found that
                            W/D  =  25
     Therefore, the width of the  plume as it reaches the  surface  is
                        25  x 4.2  =  105 ft
     The approximte length  of  the plume can be found from the total
diffuser length plus the growth of  the plume on the ends  as follows:
     Length - (N -  1) (L/D)  (D) + W
            - (9) (10)  (4.2) + 105  = 480  ft
     Variatons of Problem 4  have  been  solved and results  listed  in
Table VII, where Case 1  is  the problem just discussed.  Similar  procedure
to the latter has been  used  throughout.   As a point of interest  when
comparing the results of this  problem  with Problem 2, the 2°  F temperature
difference at the surface required  in  that problem is satisfied  in  all
cases here by using a multiple port diffuser.
                                 48

-------
                          TABLE VII
Variations on Problem 4 Showing Several Discharge Conditions
                  and Diffuser Jet Spacings
                    (Plant Size 1000 MW)
Case
No. of Ports
Port Dia. D (ft)
Port Spacing L/D
Froude Number
Discharge Angle e (degree)
Diffuser Length (ft)
Plume Location at X(ft)
ATc = 2° F Z(ft)
AT at Surface °F
c
Plume Width at Surface W(ft)
Plume Length at Surface (ft)
Figure Used
1
10
4.2
10
18
30
378
105
85
1.2
105
. 483
A-17
A-18
2
10
4.2
10
18
0
378
127
30
1.0
140
518
A-15
A-16
3
10
4.2
10
18
90
378
0
135
1.8
64
442
A-21
4
100
1.34
1.5
30
30
200
96
88
1.4
140
340
A-10
A-ll
5
100
1.34
1.5
30
0
200
134
47
1.3
174
374
A-8
A-9
6
100
1.34
1.5
30
90
200
0
134
1.6
100
300
A-14
                              49

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Example Problem 5

Given:

     Warm water at 75° F is to be discharged from a multiple  port

diffuser from the bottom of a stratified lake.  The following design

conditions apply:

     a.  The diffuser consists of a single row of nozzles, 1.0 ft  in

         diameter, spaced 1.5 feet apart.

     b.  Discharge angle  6 = 0.0°

     c.  Discharge Froude number is calculated to be 25

     d.  The temperature variation within the lake is represented  by the

         curve shown below
    O
    c;
      
    t- OJ
     >
   > O
     -Q
            I         Water Surface
         GO
         40
20 »•
          Q	,
                       50   51   52   53  54
                    Ambient Temperature °F

Determine:

     1.  The maximum height of rise of the plume.

     2.  The location of the plume when the difference between  the  plume

centerline and local ambient temperatures is 5 percent of the  initial

temperature differences, i.e.,  ^Il  = 0.0,5.
                                  o
                                 50

-------
Solution:
Part 1
     The stratification number S, and the dimensionless distance from
discharge to the start of stratification Z /D are two parameters in
this problem that must be calculated following the procedure outlined
in Section  III and Fig. 6 in the text.  Accordingly, two possible approxi-
mations to  the given stratification for this problem are shown in the
sketch below.
            80  r	
     OJ
     o
    .a
     O
     c cu
     to 01
       O
       (SI
     o
     O)
       o
60
            40
             20
                        R'ater Surface
              0  I-
                           50   51  52   53   54
                         Ambient Temperature °F
      For  approximation  I,  stratification is assumed linear from discharge
 to  the  surface,  and  the  above mentioned parameters are:
                   •  %  - *»
                       ATa/AZ
     and
   ZS/D  =  0
                                 51

-------
     For approximation II,   stratification is assumed to be linear after
an initial 10 ft. region that is non-stratified and the alternate parameters
of the problem are:
                     AT /D
               c
               S
                t  " AT7AZ  ~ O5770 ~
                       a
     and       ZS/D  =  10
Using Fig. B-13 for stratification I, MNS L/D =1.5, ZS/D = 0, Q = 0, and
F = 25, the terminal height is found to be at Z/D ~ 75.
     Using Fig. B-17 for stratification II MNS L/D =1.5,ZS/D = 10 9 = 0,
and F = 25, the terminal height is found at about Z/D -- 70.  Note that
in this case curves fora stratification number of 410 are not given and
thus interpolation was necessary.
Part 2
                                     ATr
     To determine the location where ^-j-  =?.0b, enter the fiaures with
                                       °             ATc
F = 25 and locate where the dashed line representing -y-  =0.05 crosses
the trajectory line for a given stratification.
                                                        ATr
     For approximation I with S.  = 500, the location of -~  =0.05 is
                                                        AiQ
found from Fig. B-13 to be at X/D  - 8?. and Z/D •••• 26   The location where
the plume center! ine temperature  reaches the local  ambient temperature
is found from the (-*•) mark on the  trajectory curve for F -- 25,  S,  =  500.
This is at X/D * 100 and Z/D =M3.
     For approximation II using Fig.  B-i7 with F = 25, St = 410 the  loca-
tion of  flic   uC<05 1s found to ),,, ^prrcixirnateiv X/D -- 82 and Z/D  ^   2o.

-------
Example Problem 6
Given:
     The condenser cooling water from a 500 MW fossil-fueled power plant
is to be discharged horizontally from a single port diffuser into coastal
ocean water at a depth of 100 ft.  The following design data apply:
                                               Q
     a.  Waste heat to cooling water = 1.9 x 10  Btu/hr
     b.  Condenser AT (ATQ) = 25° F
     c.  Discharge angle 9 =  0.0°
     d.  Discharge velocity U. = 10 ft/sec
                             -J
     e.  Salinity = 40 ppt
     f.  The ambient water is stagnant and is stratified.  The stratifi-
cation  is approximated by the graph given below.
Determine:
      1.  The maximum height of the plume rise.
      2.  The location of the plume when its center!ine temperature is
1.25°  F above  the local ambient temperature.
                              \7

 01
CO CO
•r- S-
Q ro
f— O

-------
Solution:
Parts 1 and 2
     The diffuser  port diameter (D)  and the discharge Froude number
are calculated following the procedure outlined in Problem 1, i.e.,

     Q  =  	1.9 x ID9 Btu/hr	  . 330 ft3/sec
           (64 Ib/ft3)(1.0 Btu/lb-°F)(25°F)(3600 sec/hr)
     .  _    330 ft3/sec    _  -3 ft2
     A  ~     10 ft/sec"  JJ Tt
     D  =
(4  x 33/3.14)1/2  =  6.5 ft
     F  = GU.(D)"1/2 « 3.0 x 10 x (6.5)"1/2  *  11.7
            J
     Following the procedure of Section III, the stratification  number
$t and dimensionless distance from discharge to  the  start  of stratifica
tion number Z /D are obtained from the information given on  the  graph
for approximating the ambient stratification.  Thus,
     and        ZS/D = 25/6.5 = 3.8
                          .     _
                       AT/AZ  "   (55-50)7(100-25)
     Since ZS/D is 3.8,  interpolation  is  required  between  the nomograms
for ZS/D = 0.0 and ZS/D  =10.   As  a  first approximation,  however,  it is
assumed that Z$/D = 0.0.
     For  ^Jc.   = 1.25/25 =  0.05,  F  =  10, and  extrapolating  to S.  = 58,
          ATo
Fig. B-l gives a Z/D of  about  5, and X/D  of about  18,  and  a  maximum height of
rise Zmax/D of about 10.   Therefore, the  desired  1.25° F  excess tempera-
ture is located about 33  ft  above  and  120 ft horizontally  away from the
                                 54

-------
point of discharge.  The maximum height of rise is about 65 ft above
discharge.
     Variations of Problem 6 have been solved using the nomograms in
Appendix B.  The results are tabulated in Table VIII where Case 1 was
just discussed.  Note that multiple as well as single port diffuser
problems are treated in Table VIII.
     If the reader finds his problem outside the range of parameters
covered in nomograms as in the above, he may either choose the next
closest parameter or come nearer to the answer by extrapolation.  The
extrapolation  procedure is arbitrary.  In the above example Z   /D,
                                          *                   if id X
for  instance,  was found by plotting the terminal heights against $t
for  St =  2500,  1000, 500 and 100 all for F = 10 as obtained from B-l.
The  extrapolation  to S. = 58 led to the result given for Zrnax/D.
                                   55

-------
                              TABLE VIII


    Variations on Problem 6 Showing Several  Diffuser Configurations
                       and Discharge Conditions
Case
No. of Ports
Port Dia. D (ft)
Port Spacing L/D
Froude Number F
Stratification
Number S.
ZS/D
Discharge Angle 9 (degree)
Plume Location at
ATr M Z(ft)
AT; =0-05 x(ft)
Terminal Height (ft)
Figures Used
1
1
6.5
—
12
58
0
0

33
120
72
B-l
1
1
6.5
—
12
58
2
10
2
10
21
188
3
100
.64
10
38
580
4
100
.64
1.5
38
580
5
1
6.5
—
12
58
6
10
2
10
21
188
                                      10
38
38
                                                    30
                                      26
                                      90
14
45
              90
                                                           **
10
              90
43     98     50
35     —     —
                                                                  **
                                      60      45      77

                                     B-29    B-33*   B-22   B-4a&b  B-32a&b
 *Fig. A-15 could be used to  give  more  details for Z/D < 38 since for
  Case 3 the fluid is assumed to be  non-stratified below Z/D of 38
  and the desired dilution to 1.25°  F occurs  at a Z/D of about 30-

**Plume reaches the water surface
                                  56

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Example Problem 7
     450 cfs of warm water is discharged into a river in the general
direction of flow at an angle of 30 degrees from the horizontal through
12 equally spaced nozzles.  The following conditions apply:
     a.  The initial temperature difference AT  = 30° F
     b.  Discharge velocity U. = 10 ft/sec
                             J
     c.  Average velocity of the ambient water U  =2.5 ft/sec
     d.  The river is 40 ft deep and has a uniform temperature of 50° F
Determine:
     1.  The nozzle  spacing so the jet plumes will not merge by the time
they reach  the  river surface.
     2.  The center!ine temperature at the surface.
Solution:
Parts  1  and 2
     The port  area  (A1) and diameter (D) of each jet are calculated from
the  data given  as  follows:
Q =  450 ft3/sec                 A1 = 45/12 = 3.75 ft2/port
           2
A =  4^Q ft/secC   =  45 ft2       D = (4 x 3.75/3.14)1/2 = 2.2 ft
     From  Fig.  F-l with T  =  50° F, ATrt = 30° F and fresh water, the
                         3            U
G factor is found  to be about 3.2.  Therefore, the Froude number is
           F =  3.2  x  10 x  (2.2)"1/2 = 21.5 or F ^ 20
     The jet-to-ambient velocity ratio  (k) is:
                k = U./U  = 10/2.5 = 4.0
                     J  o
                                   57

-------
     The nomograms  for discharge  into  non-stratified  water with a current
are found in Appendix C.   For k = 4  and  6  =  30°,  Figures  C-13 and C-14
should be used.   If the river is  40  ft deep,  Z/D  =  40/2.2 - 18 at the
surface.  Entering  Figures C-13 and  C-14 at  Z/D - 18  and  F - 20,  the values
of W/D and ^£  at  the surface are found to  be 11 and 0.02, respectively.
           *To
     If the plumes  are not to merge, then  the jet spacing (L) should
exceed the plume width at the surface.  Thus, L should  exceed 2.2 x 11  -
24 ft.  Since the initial  temperature  difference was  30°  F, the center!ine
excess temperature  of the plumes  will  be 0.02 x 30  =  .6°  F when they reach
the surface.  The location of the plumes when they  reach  the river surface
is found from either Fig.  C-13 (or C-14) to  be at X/D - 115 which is about
250 ft downstream from the discharge point.
     Variations  of  Problem 7  have been solved using the same procedure
outlined above.   The results  are  tabulated in Table IX.

                              TABLE IX
   Variations on Problem 7 Showing Several Diffuser Configurations
                    and Discharge Conditions
                                                      456
                                                       5        5      12
                                                     3.4      3.4     2.2
                                                     40       40      40
                                                       0       90      90
                                                   17.3     17.3    21.5
                                                       448
                                                      95       22      18
                                                     0.3      1.5     1.5
                                                     665      150     49

                                                     C-7     C-21    C-25
                                                     C-8     C-22    C-26

                                  58
Case
No. of Ports
Port Diameter D (ft)
River Depth (ft)
Discharge Angle 6 (degree)
Froude Number F
k
Port Spacing L (ft)
ATc at Surface (°F)
Plume Location at
Water Surface (ft)
Figures Used
1
12
2.2
40
30
21.5
4
24
0.57
250
C-13
C-14
2
12
2.2
40
0
21.5
4
Off chart
<0.3
>440
C-7
C-8
3
12
2.2
40
90
21.5
4
23
0.6
308
C-21
C-22

-------
Example Problem 8
     Warm water is discharged vertically from the bottom of a river at
a velocity of 10 ft/sec through a 5.0 ft diameter pipe.  The discharge
Froude number is 20.  The river at this location is deep, non-stratified
and has an average velocity of 1.0 ft/sec.
Determine:
     1.  The river depth required so that the center!ine excess tempera-
ture of the plume will not exceed 2.0 percent of the initial temperature
difference.
     2.  The plume width at this point.
Solution:
Parts  1 and 2
     Discharge  diameter and Froude number are given:
                          D = 5.0 ft
                          F = 20
     The jet-to-ambient velocity ratio is
                   k  = U./U  = 10/1 = 10
                       J  ^*
     The nomograms  for discharge into a moving, non-stratified ambient
 (RCN)  are  found in  Appendix C.  Since RCN plots for 6 = 90° are given for
 k  = 8  and  12 but not for k = 10, interpolation between the two values of
k  is required.   Entering Figs. C-25 and C-27 with  ^I
-------
      The results of variations to this problem with different values of
 F, k, and e are presented in Table X.   Note that D is held constant and
 thus variations in F reflect the effects of different ambient as well as
 discharge conditions.

                                TABLE X
     Variations  on  Problem 8  Showing Several  Discharge Conditions
 Case
 Froude  Number F
 Port Diameter D (ft)
 Velocity  Ratio  k
 Discharge Angle f
 Plume Location
 at  AT^
 "  AT =°'°2
      0
 Width at
 ATr
 ~ = 0.02   W(ft)             65         "         80        113
   o
Figures  Used


(ft)

6 (degree)
X[ft)
z(ft)
1
20
5
10
90
185
155
2
20
5
4
0
650
38
3
50
5
8
90
540
150
4
50
5
4
0
500
15
C-25
C-26
C-27
C-28
C-7
C-8


C-25
C-26


C-7
C-8


                                 60

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Example Problem 9
Given:
     A 1000 MW nuclear power plant discharges its cooling water at 20° F
above ambient at a velocity of 10 ft/sec through three ports spaced 40 ft
apart.  River conditions are as follows:
     a.  Depth = 40 ft
     b.  Temperature = 50° F
     c.  Velocity UQ = 2.5 ft/sec
     d.  The discharge is horizontal in the direction of the current
         (co-flow).
Determine:
     1.  If the  plumes merge before they reach the surface.
     2.  The downstream plume location where the centerline temperature
 is,  at most, 1°  F above the ambient.
 Solution:
 Part 1
     The port diameter  (D) is calculated following the procedure outlined
 for  Problem 2 for a 1000 MW power plant with ATQ = 20° F.
               Q = 1430 ft3/sec
               A =  143 ft
      For three equal ports, the area per port is
               A' = 143/3 - 47 ft2
               D = (4 x 47/3.14)1/2 - 7.7 ft
     For fresh water with AT = 20° F and Ta = 50° F, the G factor is
                            o              a
found from Fig.  F-l to be about 4.5.  Therefore, the discharge Froude
number is F = 4.5 x 10 x (7.7)"1/2 = 16.
                                  61

-------
     The jet-to-ambient velocity ratio is
                    k = U./U  =  10/2.5 = 4
                         J   V
     For a river depth of 40 ft  and  a jet diameter of 7.7 ft, the surface
is at Z/D = 5.2,  For discharge  into a moving,  non-stratified ambient,
use the nomograms in Appendix C  (RCN).  Entering  Fig.  C-8 at Z/D * 5 and
F * 16 gives a value of W/D a 10.  This gives a plume  width VI * 10 x 7.7
- 77 ft which is greater than the  40 ft jet  spacing,  indicating that the
plumes have already merged  at the  water surface.
     A plume width of W/D = 40/7.7 = 5.2 (i.e., where  the plume width
equals the port spacing) is obtained at Z/D  =< 2-0-  This  is where the plumes
start to merge.
Part 2
                                                                  ATc
     Entering Fig. C-7 with Z/D  =  2.0 and  F  = 16  gives a  value of ^p  =
                                                                    o
0.15 or ^TC = 3° F.   This indicates  that the centerline excess temperature
of 1.0° F occurs after the  plumes  have started  to merge.   Since information
on merging jets in a current are not presently  available,  only an approxi-
mation can be made as to where the lower temperature will  be reached.
     The exit ports  would have to  be 77  ft apart  to prevent the plumes
from merging by the  time they reached  the  surface.  If this were the case,
                                AT
a 1° F excess temperature where  -^ = 0.05  is  found from Fig. C-7 to
                                  o
occur just as the plumes reach the surface at Z/D - 5 and  X/D  = 75.
                                 62

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Example Problem 10
Given:
     Warm water is discharged vertically upward into a deep layer of a
large body of moving water.  The following conditions are given:
     a.  Discharge Froude number = 20
     b.  Discharge port diameter D = 5 ft
     c.  Discharge velocity = 5 ft/sec
     d.  Ambient velocity UQ = 1.0 ft/sec
     e.  Receiving water is linearly stratified with a temperature
         gradient ATa/AZ  = 0.07° F/ft
                    Q
      f.  The initial temperature difference AT  = 20° F
Determine:
      1.  The location of the plume when the centerline excess temperature
is  2°  F.
      2.   If the total depth is 150 ft, does the plume reach the surface?
Solution:
Part  1
      The jet-to-ambient velocity ratio is
                      k = uyuo =5/1=5
      The stratification number S. is
                St - AVD   .  20/5  .  „
                 1   AT_/AZ     5757     "'
                       Q.
      Since the ambient water temperature is linearly stratified through-
out,the dimensionless discharge depth Z$/D is zero.
                                 63

-------
     This problem is for a single jet discharging into a moving, stratified
ambient water (RCS).  The corresponding nomograms are found in Appendix D.
The closest values  plotted are for k  = 4,  St = TOO, and F = 30, which are
found on Figs.  D-5  and D-6.
     Entering Fig.  D-5 with  flic.  = 2/20 =  0.1  and 6 = 90°, the location
                            AT0
of the plume is found to be  at Z/D -  7 and X/D - 5.  This is 35 ft above
and 25 ft downstream of the  discharge point.
Part 2
     It is seen from Fig.  D-5  that the maximum height of rise for vertical
discharge with  the  given ambient  conditions  is approximately at Z/D = 19
or Z - 95 ft.  Since the total  depth  is 150  ft,  the plume will  not reach
the surface.  This  is particularly true since  the stratification number
is 60 rather than 100 as used  in  the  calculations.
     Variations of  this problem with  different discharge and ambient con-
ditions have been solved and the  results are listed in Table XI.
                                64

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                             TABLE XI
       Variations on  Problem  10  Showing Several Discharge
              Configurations  and Ambient Conditions
Case
Froude Number F
Port Dia. D (ft)
Temperature
Gradient (°F/ft)
St
Discharge Angle 6 (degree)
k
Plume Location X (ft)
at ATc = 2° F Z (ft)
Terminal Height (ft)
Figures Used
1
20
5
.07
60
90
4
25
35
95
D-5
2
20
5
.07
60
0
4
200
5
*
D-5
3
20
5
.07
60
90
2
33
25
*
D-3
4
10
10
.025
80
90
2
80
50
125
D-l
5
75
2
.025
400
90
4
16
16
*
D-15
6
75
2
.025
400
0
4
76
0
*
D-
* Off Chart
                                 65

-------
Example Problem 11
Given:
     Condenser cooling water is discharged vertically upward into shallow
sea water.  The following conditions  apply:
     a.  Discharge velocity IL  = 15 ft/sec
                             J
     b.  Discharge diameter D = 5 ft
     c.  Ambient is stagnant and non-stratified with a salinity of
         40 ppt and a temperature of  60° F
     d.  The discharge depth is 50 ft
     e.  The initial temperature difference  ATQ = 30° F
Determine:
     The temperature at the center of the plume when it reaches the surface.
Solution:
     From Fig. F-l with T  = 60° F, AT  = 30° F and salinity of 40 ppt,
                         a            o
the value of G is found to be about 2.5.  Therefore, the Froude number is

     F - GU.(D)"1/2 = 2.5 x 15 x (5)"1/2 = 16.7
           J
     The shallow water nomograms of Appendix E are used for this problem.
The appropriate figure to enter is E-2 for Z/D = 50/5 =10.  From this
                                                       AT
figure and for a Froude number of 17, it is  found that -r=£-  = 0.4 at the
                                                         o
surface.  Therefore, the temperature  at the  center of the plume as it
reaches the surface is 60 + 0.4 x 30  - 72° F.
     Variations of this problem with  different discharge conditions and
depths have been solved and the results are  listed in Table XII.
                                  66

-------
                             TABLE XII
      Variations of Problem 11  Showing Surface Temperatures  for
                    Several Discharge Conditions
Case                       1234

Port Dia. D (ft)           5          5          2         10

Discharge Velocity        15         15         10         10
U. (ft/sec)               15         15         IU         1U
 v

Froude Number F         16.7       16.7       17.8        7.9

Depth (ft)                50        200         10        100

Surface Temperature       -,/,        -, r         ?/l         in
ATC (°F)                  12        Kb         ^

Figures Used             E-2        E-l        E-3        E-2
                                  67

-------
                             REFERENCES


1.   Koh,  Robert C.Y., and Fan, Loh-Nien, "Mathematical  Models for the
Prediction of Temperature Distributions Resulting from the Discharge of
Heated Water into Large Bodies of Water," Environmental  Protection Agency,
Water Quality Office, Water Pollution Control  Research Series Report
16130 DWO 10/70, October 1970.

2.   Abraham, G., "Horizontal Jets in Stagnant Fluid of Other Density,"
Journal of Hydraulics Dry.. ASCE, July 1965, pp 139-154.

3.   McQuivey, R.S., T.N. Keefer, and M.A. Shirazi.  "Basic Data Report
on  the Turbulent Spread of Heat and Matter," U.S. Department of Interior
Geological Survey and the U.S. Environmental Protection Agency, Open-file
Report, Fort Collins, Colorado, August 1971.

4.   Fan, L. N., "Turbulent Buoyant Jets into Stratified or Flowing Ambient
Fluids," Report No. KH-R-15, W. M. Keck Lab of Hydr. and Water Resources,
California  Institute of Technology, Pasadena, California, 1967.

5.   Hirst,  E. A.,  "Analysis of Buoyant Jets Within the Zone of Flow Estab-
lishment,"  Oak Ridge National Laboratory, ORNL-TM-3470, August 1971.

6.   Hirst,  E. A.,  "Analysis of Round, Turbulent, Buoyant Jets Discharged
to Flowing  Stratified Ambients," Oak Ridge National Laboratory, ORNL-4685,
June 1971.

7.  Trent,  D. S.,  "A Numerical Model for Predicting Heat Dispersion in
Thermal Plumes  Issuing from Large, Vertical Outfalls in Shallow Coastal
Waters."  Doctoral  Dissertation, Oregon State University, Corvallis, Oregon,
to be  published, 1972.
                                 69

-------
              APPENDIX A
Nomograms for Discharge into Stagnant,
   Non-Stratified Water, (RNN, MNN)
                 71

-------
                    TABLE I
Figure Numbers Corresponding to Plume Behavior
  From Submerged Diffusers Discharging into
        Stagnant, Non-stratified Water
Diffuser
RNN
Single
Jet



o>
•-3
O) $-
i— O)
Q- l/>
•r- 23
iE 0
s:

LT5
1!
_J
O
II
Q

O
CM
II
Q
_J
O
oo
II
O
_J
Discharge Angle
0°

A-1,2

A-8,9

A-15,16


A-22,23


A-29,30
30°

A-3,4

A-10,11

A-17,18


A-24S25


A-31,32
60°

A-5,6

A-12,13

A-19,20


A-26,27


A-33,34
90°

A-7

A-14
i

A-21


A-28


A-35
                    73

-------
    LU
    O
2   S
    IX
         140"r
         120
                                 	1	..	_ J.__,
                                                             -t	
                                                                                 /
                                                                                            /   RNN
                                                                                            1    TEMPERATURE CHART
                                                                                                    - (-0            /
                                                                                                      V             /
                                                      80        TOO
                                                    HORIZONTAL  DISTANCE X/D
                           n\JI\l<.UINIML UiOIMII^C.  «/U

Fig. A-l  Temperature-Trajectory  Chart  for a Single Jet Discharging  into a
          Non-Stratified,  Stagnant Large Body of Water:  RNN, 9-0°

-------
     140
UJ
<_3

I
>—4
o
<
<_>
                                                                                       "   RNN
                                                                                      /   WIDTH CHART
                                                                                          0 = 0.0°
60
                                                 80      "TOO        120
                                               HORIZONTAL DISTANCE X/D
  K^OU   I
  * 200"t
F_= 60p_J-_
 140       160
180
200
                      Fig. A-2  Width-Trajectory Chart for a Singl'e Jet Discharging into a
                               Non-Stratified, Stagnant Large Body of Water:  RNN, 9 = 0°

-------
UJ
O
I/O
                                                                                       RNN
                                                                                       TEMPERATURE CHART
                                                                                       0 = 30°
                                                                                                               -t
                            40
60
  80        100        120
HORIZONTAL DISTANCE X/D
140
160
180
                      Fie.  A-3  Ternperature-Trajec:ory Ch?.rt for a Sing's Jet D^ischarqirq into a
                                Non-Strdtified,  Stdgr,ant Large  Body of Water:  RNN,  9~= 30°
200

-------
    140
to
•—«
o
a:
                '  /.av
     20
        / y



 /  -'"<* &




/\^>*2°
              ^
                W/D = 10
                                      RNN

                                      WIDTH CHART

                                      0 = 30°
          ^
              20
         40
60
                      80       100      120     HO


                    HORIZONTAL DISTANCE X/D


Fig. A-4  Width-Trajectory Chart "or a Single Oet Discharging into a
160
180
200
                         :XO"-o^ra"i r

-------
00   5
    CtL
       140
        120
        TOO
         80
         60
         40
         20
            W^\^r-
            ///> •  T/W
            I / »-  ST        "^
{-/,yi M'~+r

VsT ^7
•'/ l^y

tf$
                            20
  40                60


HORIZONTAL DISTANCE X/D
                                 RtNN

                                 TEMPERATURE CHART

                                 0 = 60°
                                                                                 80
                                                                                      100
                       Fig. A-5  Temperature-Trajectory  Chart  for a  3ir,ole Jet Discharging -into a

                               Non-Stratified,  Stsgna.iL Large Body of Water:  RNN, 9 = 50°

-------
   o
10
       140
                                                     ^   ^V*
                                                            '   s,
                                                                                             y-
                                20
                           40                  60
                         HORIZONTAL DISTANCE X/D
Fig.  A-6  Width-Trajectory  Chart ^or a Single Jet Discharging into a
                                                                                             80

, . x f/y
11 1 / >
i ( /" K ^" W/D = 10
" / //
i//^-
	 . 1 	 .
1
i
!
RNN
WIDTH CHART
9 = 60°
100
                                    ton-Stratified,  Stagnarc Large Body of Water:
                                                        RNN,  9 = 60°

-------
    UJ
    a.
oo
          1.0
          0.1
          o.o
                       W/D « 10
                                                                                    RNN
                                                                                    TEMPERATURE/WIDTH CHART
                                                                                    0 = 90°
                       20
40
60
80
100
120
140
160
180
200
                                                 VERTICAL DISTANCE  Z/D
                            Fig.  A-7   Temperature-Width Chart  for  Single Jets Discharging into a
                                      Non-Stratified, Stagnant Large  Body of Water: RNN, 0 = 90°

-------
UJ
a
                                                                                     "  MNN  L/D = 1."
                                                                                        TEMPERATURE CHAi
                                                                                        0 = 0.0°
                                                30        100       120

                                              HORIZONTAL DISTANCE X/D
160
180
200
                     Fig. A-8  Temperature-Trajectory  Chart for Multiple Jets Discharging into a
                               Non-Stratified,  Stagnant Large Body of Water:  MNN L/D = 1.5,  u =  0.0°

-------
03
    c/o
    S
    o:
                                                                                               MNN   L/D = 1.5
                                                                                               WIDTH CHART
                                                                                               0 = 0.0°
                                                        •/  -/-
                                                  ^J-  ~zl  I— I  -— -,
                                                  ^±?.._--.i=f _. y - - i_=±^ * i^n_^^
                                                      80         TOO        120
                                                    HORIZONTAL DISTANCE  X/D
                                                    iiuixii-uiiinL. ixj.vPinJtUL.  '*/ v

                           Fig. A-9  Width-Trajectory Chart for Multiple Jets  Discharging into a
                                     Non-Stratified, Stagnant Large  Body of  Water:   MNN L/D =1.5, 9 = Oc

-------
        140;
    o
    M
00
    a:
    UJ
                                      //'/<>
                                                                                         MNN  L/D = 1.5
                                                                                         TEMPERATURE CHART
                                                                                         0 = 30°
                      20        40         60        80        100       120       140       160        180
                                                  HORIZONTAL DISTANCE X/D
                         Fig.  A-10 Temperature-Trajectory Chart for Multiple  Jets  Discharging into
temperature-irajectory  unart Tor Multiple oets Discharging into
a Non-Stratified.  Stagnairc Large Body of Water:  MNN L/D = 1.5, 0  =30C
                                                                              1
                                                                              200

-------
c»
en
     UJ
         140
         120
         100
                                                                                           MNN  L/D = 1.5
                                                                                           WIDTH CHART
                                                                                           G = 30°
                                            60
  80        100       120
HORIZONTAL DISTANCE X/D
140
160
180
                         Fig. A-11  Width-TroJecto^y Cha^t 'or f'u'i tip^e  Oets  Discharging  into  a
                                    Non-Stratified, Stacrid;; Large Body  of Water:   :-'NN  L/0  = 1.5,  G  =  30'
200

-------
oo
    LU
    O
        140
                           '/
                                                                                     //
-W
                                      P'
                                                                                          <&
                                                                              X/>^
                                 20
  40                   60
HORIZONTAL DISTANCE
                                                                                           MNN  L/D = 1.5
                                                                                           TEMPERATURE  CHART
                                                                                           0 = 60°
                                                                                                 80
                       Fig. A-12   Temperature-Trajectory Chart for ''.ulfipls Jets !>;scharcir,g  into a
                                   Nor.-Straflfisd, Staonar.t. Large Bcc'y of l-.'a'cer:  f-'N'M L/C  -  1.5,  0 = 50'
                                                                                                                      1
                                                                                                                      i
                       TOO

-------
         140
CO
     UJ
     o
     z:
     
-------
    UJ
    cc
    3
    QJ
    O.
CO
to   "1
    UJ
          1.0
          0.1
- W/D - 10
          0.0
                       20
                    40
                            Fig. A-14
                                                                                      MNN   L/D - 1.5
                                                                                      TEMPERATURE/WIDTH CHART
                                                                                      6 «  90°
                                            30
                                                      40
                                                                50
                                                                          60
60
80
                                                                100
120
140
160
                                                                                           180
                                                                       200
                                                 VERTICAL DISTANCE  Z/D
                         Temperature-Width  Cha^t for Multiple Jets Dischargino into a
                         Non-Stratified,  Stagnant Large Body of Water:  MNN L/D = 1.5, 0 = 90°

-------
IO
o
     i/o
     »—t
     O
                                                                                                 MNN L/D = 10
                                                                                            /    TEMPERATURE CHART
                                                                                                ..  _  „. , _F = 600
                                                      80        100       120

                                                   HORIZONTAL  DISTANCE  X/D

                          F1g. A-15  Tenperature-Trajectory Chort  for Multiple Jets Discharging into
                                     a Non-Stratified, Stagnant Large Body of Water: MNN L/D ="10, 0=0°

-------
    140

a:
UJ
                                                                                            KNN L/D = 10
                                                                                            WIDTH CHART
                                                                                            0 = 0.0°
                                                                                               »/    /
                                                                                           1 .-••'  /    /
                H/1V//
           '
                                                                                          zoo
                                                                                        F - 600 .. •'_
20
                                               80        TOO       120
                                             HORIZONTAL DISTANCE X/D
                    F1g. A-16  Width Trajectory Chart for Multiple Jets  Discharoing into a
                              Non-Stratified, Stagnant  Urcs Body of Water:  MN'N i, 0 = 10,
                                                                                  e =

-------
     o
     t/1
     I—I
     o
     —I

IS    §
                                                                 /   /    X,  "V*
                                                                                              MNN  L/D = 10
                                                                                              TEMPERATURE CHART
                                                                                              9 = 30°
                            80        100

                          HORIZONTAL DISTANCE
Fig.  A-17  Temperature-Trajectory Chart 'or Vulfirle Oe-cs Discharging into
           a Men-Stratifi:d, Steor^-.t La; ge Body or Water:   ;-'NM L/D = 10, 0
                                                                                                       =  30C

-------
     140
UJ
CO
f— <
o
o
•—i
c;
                                                                                               MNN L/D - 10
                                                                                               WIDTH CHART
                                                                                               9 = 30°
                                                   80        100       120
                                                HORIZONTAL  DISTANCE X/D
                      Fig.  A-18   Width-Trajectory Chart for reticle .]-:.t:. LMscherrnro Into e
                                 N-r'-Strotified. S':?^"cr.i; Lcrr^ Eody of  V'alc--:  ;•':•;!' L/D = '0, 0 - 30°

-------
o

tvl

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"3Z

-------
          140
VD
     O
     LO
     >— «
     O
                                                                                               KNN L/D = 10
                                                                                               WIDTH CHART
                                                                                               0 = 60°
                                                     HORIZONTAL DISTANCE X/D
                          Fig. A-20  Width-Trajectory Chart for Multiple Jets  Discharging into
                                     a Non-Stratified,  Stagnant Large  Body of  Water:  MNN L/D - 10, 0 = 60e

-------
      i.or
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C£.
      0.1 -
X
UJ
UJ
      0.01
                                                                                   MNN L/D = 10
                                                                                   TEMPERATURE-WIDTH CHART
                                                                                   0 = 90°
                    W/D = 10
                                                                                                           e.s
                   20
40
60
80
TOO
120
140
160
180
200
                                             VERTICAL DISTANCE  Z/D
                           Mg.  A-21   Temperature-Width Chart for Multiple Jets  discharging into
                                      a  Non-Stratified, Stagnant Large Body of Water:  MNN L/D = 10, 0 = 90C

-------
Ct

M

UJ
                                                                                        /
                                                                                      X  MNN  L/D = 20
                                                                                         TEMPERATURE CHART
                                                                                         G = 0.0°
/
   /
                                                                                                             /
                                                  80        100       120

                                                HORIZONTAL  DISTANCE X/D
                      Fin. A-22  Tenperature-Trajecto^;/ Chavt for Multiple Oets Discharcirc into
                                 a Non-Stratified, St-sgnent Body of Water:  i»'NN L/D = 20, 0 = 0°

-------
           140
vO
      oc
                                                                                                     MNN  L/D = 20
                                                                                                     WIDTH CHART
                                                                                                     e = 0.0°
                       W/D =   ,
                         70   /    /
                                                        80         TOO        120

                                                      HORIZONTAL DISTANCE  X/D

                            Fig. A-23   Width-Trajectcry  Cha-':  for Krltiple  Jets  Discharging into
                                       a  Non-Stratified,  Sc.i'jn^.t   L-: rge  Bc/'y of '\'dter:   M'XN L/D = 20, 0 = 0°

-------
   UJ
8  §
   Cf.
       140
       120
       100
        80
60
        40
        20
       -C^'-;
           /-—-
-------
     140
UJ
Q
                                                                                           MNN  L/D = 20
                                                                                           WIDTH CHART
                                                                                           0 = 30°
                                                 80        100       120
                                               HORIZONTAL DISTANCE X/D
                                                         140
160
180
Fig.  A-25  Width-Trajectory  Char;  for N:i1tip!e -."sts Discharging into
           a ilon-Stratified,  Sl^rant La~?e  Body of Water: \>!NN L/D = 20, 0
200
                                                                                                 = 30C

-------
O


-------
         140
    UJ
    o


    3
    CO
o   «*
CO   O
                                20
  40                  60


HORIZONTAL DISTANCE X/D
                                                                                              MNN   L/D  =  20

                                                                                              WIDTH CHART

                                                                                              0 = 60°
80
100
                            Fig.  A-27   Width-Trajectory  Chart for liultiple Jets Discharging Into a

                                       Non-Stratified, Stagnant  Large  Body of Water:  MNN L/D = 20, 0 - 60C

-------
          1.0
   Ol Q
    2     0.1
    tu  , ••
    0.
o   i-
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    Lu)
          0.0
                       W/D - 10
                       20
40
                                                                                      MNN  L/D » 20
                                                                                      TEMPERATURE/WIDTH CHART
                                                                                      6 « 90°
                                                                                                                5 —.-
60
SO
100
120
140
                                                                                               160
180
200
                                                 VERTICAL DISTANCE  Z/D

                             F1g. A-28  Temperature^Width  Chart for Multiple  Oets  Discharging  Into

                                        a Non-Stratified,  Stagnant, Large  Body of  Water: MNN L/D = 20, 8 * 90°

-------
s
CT»

                                                                                             MNN  L/D = 30
                                                                                             TEMPERATURE CHART
                                                                                             0 = 0.0°
                                                     80      'TOO       120

                                                   HORIZONTAL DISTANCE  X/D
                          Fig.  A-29  Temperature-Trajectory Chart  for Multiple  Jets  Discharging  into
                                     a Non-Stratified,  Staunar.t,  Lar~c Bcdy  of  Water:   f.'NM  L/D =  30,  9 =  oe

-------
o
•-4

oe.
ui
                                                                                           MNN  L/D " 30
                                                                                           WIDTH CHART
                                                                                           0 « 0.0°
                                                                             50 X 100  110  120.130  140

                                                                          X  /     /    /  "I
                                                80        TOO       120
                                              HORIZONTAL DISTANCE X/D
                     Fig. A-30  Width-Trajectory Chart for Multiple Jets Discharging into  a
                                Non-Stratified, Stagnant Large Body of Water:   MNN L/D = 30, 6

-------
O

«C
o
                                                                                      MNN  L/D -  30
                                                                                      TEMPERATURE CHART
                                                                                      0 « 30°
                                                80         100       120
                                              HORIZONTAL DISTANCE X/D
                      F1g. A-31  Temperature-Trajectory Chart for Multiple Jets  Discharging  into
                                a Non-Stratified, Stagnant Large Body  of  Water:   MNN  L/D  =  30, 0 = 30°

-------
    140
Q

M

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                                                                                                     {$£'180
                                                                                       MNN  L/D • 30
                                                                                       WIDTH CHART
                                                                                       0 - 30°
                                                                                        160
20        40         60        80         TOO       120       140
                            HORIZONTAL DISTANCE X/D
   F1g. A-32  Width-Trajectory  Chart  for  iailtiple Jets Discharging into
              a Non-Stratified, Stagnant  Large Body of Water: "MNN L/D = 30,  6= 30
180
200

-------
o
t/o
K- <
o
O
                                                                     60
                                               HORIZONTAL DISTANCE X/D
                                                                                        MNN  L/D = 30
                                                                                        TEMPERATURE CHART
                                                                                        0 = 50°
80
100
                       Fig. A-33  Temperature-Trajectory Chert for i-'ultiple Jets Discharging into
                                  a Non-Stratified, Stagnant Large Bcdy of Water:  KNN L/D = 3Q, 0 = 60°

-------
     140
£
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Q

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O
                                                                                               L/O = 30
                                                                                          WIDTH CHART
                                                                                          0 = 60°
                                                  40                   60

                                                HORIZONTAL  DISTANCE X/D

                       Fig. A-34  V.'idth-Trajectory Chert for r*'j!tiplc -Jets Discharqirg  irto  a
                          100
                                  Ncn-Stratif'ied, St-irrarc LergG.  Body of Water:
L/D = 30, 0 =

-------
r\>
    o
    x
                                                                                             L/D = .30

                                                                                        TEMPERATURE/WIDTH CHART

                                                                                        0 = 90°
                                                                          120
140
160
180
200
                                                 VERTICAL DISTANCE  Z/D
                               Fig. A-35  Temperature-Width Chart for Multiple Gets Discharging into  a

                                         Non-Stratified, Stagnant Large Body of Water:   MNN L/D =  30,  0 =  90°

-------
              APPENDIX B


Nomograms for Discharge into Stagnant,
     Stratified Water, (RNS, MNS)
                   113

-------
                           TABLE II

 Figure Numbers Corresponding to Plume Behavior From Submerged
Diffusers Discharging into a Stagnant, Stratified Ambient Water
Diffuser
RNS
M.NS
L/D=1.5 '
MNS
L/0=10
L/D=20
ZS/D = o.
0=0° 0=30° 0=60° 0=90°
B- 1 B- 2 B- 3 B- 4

B-13 B-14 B-15 B-16

B-25 B-26 B-27 B-28
B-37 B-38 B-39 B-40
ZS/D = 10
0=0° ©=30° 0=50° 0=90°
B- 5 B- 6 B- 7 B- 8

B-17 B-18 B-19 B-20

B-29 B-30 B-31 B-32
B-41 8-42 B-43 B-44
ZS/D = 30
0=0° 0=30° 0-60° 0=90°
B-9 B-10 B-ll B-12

3-21 8-22 B-23 B-24

B-33 B-34 B-35 B-36
B-45 B-46 3-47 B-48

-------
     740
     120
                    AT
                          .05
                                                                RNS
                                                                ZS/D = 0

                                                                e = o°
                                                                        1
     100
UJ
o
o
      80
      60
      40
      20
                  20
40
60
160
                           80        100        120

                         HORIZONTAL  DISTANCE X/D
Fig.  B-l   Temperature-Trajectory Chart for Single  Jet Discharging into a
          Stratified, Stagnant Large  Body  of Water:  RNS, Z$ /D = 0, 0 = Oc
180
200

-------
     140
<£.


to
>—<

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O
     120
     100
80
      60
      40
      20
                                                                                    RNS

                                                                                    ZS/D  =  0

                                                                                    0 = 30°
                  20
                      40
60
140
160
                          80        100       120

                        HORIZONTAL DISTANCE X/D

Fig.  B-2  Temperature-Trajectory Chart for Sing!a Jet Discharging into a
          Stratified,  Stagnant Large' Body of Water:   RNS, Z /D = 0,  0 = 30°
180
200

-------
         140
    o

    
-------
   200
                                                             e = 90°
                                                             TERMINAL HEIGHT
       10
      Fig. B-4a Terminal  Height of Rise  for  Single  Jet  Discharging  Vertically
                into a Stratified Large  Body of  Water:   RNS,  Z  /D =  0, 0  =  90°
   140
   120-.
  100 |

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O


I
2 60

-------
     140
CO
*—^

o
      20
                  20
40
60
                          80        100       120


                        HORIZONTAL DISTANCE X/D

Fig. B-5  Temperature-Trajectory  Chr.rt  for  Sir cue Jet  Discharging  ir:to a

          Stratified,  Stagnant Large  Body of Water:  RNS,  Z  /D  =~1Q, G =  0°

-------
         140
         120
         100
UJ


fl     80
10
O
t\3   <->
o   *-•
          60
          40
          20
                                                                                            	,   c » .05
                                                                                                      AT
                                                                                                  AT
                                                                                                • zr
                                                                                                          = 0
                                                       *  100
                                                                                            RNS
                                                                                            Z./D = 10
                                                                                            6S= 30°
20
                            40
                                           60
140
                            80        100       120
                          HORIZONTAL DISTANCE X/D
Fig.  B-5  Temperature-Trajectory Chart for Single Jet Discharging into
160
180
200
                                  Stratified, Stagnant  l.eroe  Body of Water:
                                                                        RNS, ZS/D = 10, 0  =

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o
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      40
      20
        O1
         0
       20                   40                  60                    80
                          HORIZONTAL DISTANCE X/D
Fig.  B-7  Temperature-Trajectory Cha^t  for Singie Jet  Discharging  into a
          Stratified,  Staar.*nt i.«rge  Body of Water:  RNS,  Z./D  ="lO,  9 =  60°
TOO

-------
   200
                                                              e= 90°
                                                             TERMINAL HEIGHT
      10                   20                    40          60       80     100
     Fig.  B-8a  Terminal  Height of Rise for Single Jet Discharging Vertically
                into a  Stratified Large Body of Water:  RNS, Z$/D = 10, 9 = 90°
  140
  120..
  100
U4 80
O

i
S 60
o
   40
   20.
     10
                     100
20
                                   RNS
                                   ZS/D - 10
                                   6 = 90°
40
60
100
                                FROUDE NUMBER
     Fig.B-8b Height Where  Plume  Centerline Temperature Difference is 5% of Initial
              for Single Jet  Discharging Vertically into a Stratified Large Body of
              Water:  RNS,  ZS/D = 10, 0 " 90°                            a     *
                                    122

-------
          740
PO
00
                                                                                                     RNS
                                                                                                     ZS/D = so
                                                                                                     9=0°
                       20
40
60
  80        TOO       120

HORIZONTAL DISTANCE X/D
                            Flo.  B-9  Temperature-Trajectory Chart  for  Sir.gle  Jet  Discharging  into  a
                                      Stratified,  Stagnant Large  Bcc'y of  V.'ater:  RNS,  IJD  ="30,  9  =  0°

-------
    140
o
^^
M
UJ
     120
     100
      80
      60
      20'
                                                        = .100
                                                                                       	» 	L =  .05
                                                                                                      = 0
                                                                                                '  AT.
                                                                                        RNS
                                                                                        l/D = 30
                                                                                        6S= 30°
                  20
40
60        80        100       120
        HORIZONTAL  DISTANCE  X/D
160
180
                     Fig. B-10  Temperature-Trajectory  Chart for Single Jet Discharging in
                                Stratified,  Stagnant  L?.rge Body of Water:  RNS, Z /D = 30,
                                                           into a
                                                              e  = 30C
200

-------
          140
NJ
UJ
z
£
to
Q
—I
o
tn
                                                                                            	' T^• «  .05
                                                                                            ZS/D = so
                                                                                            e = 60°
                                                       40                  60
                                                     HORIZONTAL DISTANCE X/D
                           Fig. B-11  Temperature-Trajectory Chart for a Single Jet Discharging into a
                                     Stratified, Stagnant Large Body of Water:  RNS, Z /D = 30, 0 = 60'

-------
200-
                                                                ' 30
                                                          e = 90°
                                                          TERMINAL HEIGHT
                                              40
60
80
100
  Fig. B-12a Terminal  Height of Rise  for Single  Jet  Discharging  Vertically
             into a Stratified Large  Body of Water:   RNS,  Zg/D = 30, 0  =  90°
                             FROUOE NUMBER
  Fig.  B-12b Height Where Plume Centerline Temperature  Difference is 5% of Initial
             for Single Jet Discharging Vertically into Stratified Large Body of
             Water:  RNS, Z$/D = 30, 0 = 90°
                                 126

-------
140

             20
40
60
140
160
                                         80        100       120
                                       HORIZONTAL  DISTANCE  X/D
Fig.B-13 Temperature-Trajectory Chart for Multiple Jets Discharging  into a Stratified
         Stagnant  Large  Body of Water:  MNS L/C = 1.5,  Z /D  =  0,  0"= 0°
180
200

-------
r>o
oo
     UJ
     o
     a:
     UJ
                       20
40
60
                                                                                     140
160
                         Fig.  B-14
                   80        100       120

                 HORIZONTAL DISTANCE X/D
Temperature-Trajectory Chart for .'-Vitiple Jets Discharging ir.to
a Stratified, Stagnant Large Body of Water:   MNS L/D =  1.5,  Z /D
180
                                                                                                      0, 0 = 30°
200

-------
140
                                                                                      MNS L/D = 1.5

                                                                                        = 60°
20
                                             40                  60
                                           HORIZONTAL  DISTANCE X/D
80
               Fig.  B-15  Temperature-Trajectory Chart fcr Multiple Jets Discharging into  a
                          Stratified,  Stagnant Large Body of Water:  hNS L/D = 1^5, I /D = 0,  0
                                                                       = 50C

-------
200
  Fig. I6a  Terminal  Height of Rise  for  Multiple Jets Discharging Vertically
            into a Stratified  Large  Body of  Water:  MNS L/D = 1.5, Z$/D = 0, 0=90C
                             FROUDE NUMBER
  Fig. 165  Height Where Plume  Centerline  Temperature  Difference  is  5% of Initial
            for Multiple Jets Discharging  Vertically into  a  Stratified Large Body
         '   of Water:   MNS L/D  = 1.5,  Z /D =  0,  0 =  90°
                                 130

-------
o

M

Ul
CXL
UJ
     140
     120
2    80

                  20
40
60
140
160
                               80        TOO       120
                             HORIZONTAL DISTANCE X/D
Fig.  B-17   Temperature-Trajectory Chart for Multiple Jets Discharging  into  a
180
                             Stratified, Stagnant Large Body of Water:   MMS  L/D  =  1.5,"Z /D = 10, G = 0°
200

-------
00
     o

     M

     UJ
     <_>
     •z.
     
-------
CO
00
         20                   40                  60

                            HORIZONTAL DISTANCE X/D
Fig.  B-19  Temperature-Trajectory  Ci^rt for Multip'c Jets Discharging into a
           Stratified,  Stagnant  Larqe Body of Water:  KMS L/D = ]".5/Z /D = 10,
                                                                                                                  100
                                                                                                         = 50C

-------
                                                       e= 90°
                                                       TERMINAL HEIGHT
    Fig. B-20a  Terminal  Height of Rise for Multiple Jets Discharging Vertically
                into a Stratified  Large  Body of Water:  MNS L/D = 1.5, Z /D = 10
                0 = 90°                                                s
140
                             FROUDE NUMBER
   Fig. B-205  Height Where Plume Center!ine Temperature Difference is 5% of Initial
              for Multiple Jets Discharging Vertically into a Stratified Large
              Body of Water:  MNS L/D = 1.5, Z./O = 10, 0 = 90°
                                  134          S

-------
          140
00
tn
     o

     I—

     o
     	I
     <<
     a:
     LU
                                                                                                       MNS L/D =1.5   |
                                                                                                       ZS/D = 30
                      Fig. B-21
                     80        100       120

                   HORIZONTAL DISTANCE X/D

Temperature-Trajectory Chart for Multiple 
-------
     Q

     M
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     o
     10
     i— «
     Q
^    ~
o
I—I

DC
                                                                                               ZS/D  -  so
                                                                                               e   =  30°
                                                                                     140
                                                                                          160
180
                                80        100       120

                            • HORIZONTAL  DISTANCE X/D
Fig. B-22  Temperature-Trajectory Chart for '-'ultiple Cets Discharging into a
           Stratified, Stagnant Large Body of Water:  MNS L/D = I'.'B,  Z /D = 30, 0 = 30
200

-------
          140
     oo
OJ    M
     o:
                                                                                              	' «£«  .05
                                                                                              ZS/D  =  30
                                                                                              6  = 60°
20
                                           40                  60
                                         HORIZONTAL DISTANCE X/D
           Fig.  B-23  Temperature-Trajectory  Chart  for Multiple Jets Discharging into a
                      Stratified,  Stagnant  Larce  Body of Water:  MNS L/D = 1.5, ZS/D = 30, 0
                                                                                                                   100
                                                                                                        = 60C

-------
                                                          MNS L/D = 1.5
                                                               = 30

                                                               SAL HEIGHT
    10                   20                    40          60       80     100
    Fig. B-24a  Terminal Height of Rise for Multiple Jets Discharging Vertically
               into a Stratified Large Body of Water:   MNS L/D = 1.5, Z /D =  30,
               0 = SO0                                                 s
140
                                                                    8U    100
                              FROUDE  NUMBER
   Fig. B-24b  Height Where Plume  Center!ine  Temperature  Difference  is  5%  of Initial
               for Multiple Jets Discharging  Vertically into a Stratified  Large Body
               of Water:  •"" '  '"   -----   --  -   —
MNS L/D = 1.5, Z /D = 30, 0 = 90°
        138

-------
140
             20
40
60
140
160
                            80        100       120
                          HORIZONTAL  DISTANCE X/D
Fig.  B-25  Temperature-Trajectory Chart for Multiple  Oets  Discharging into a
180
                           Stratified,  Stagnant Largs Body of Water:  MNS L/D =  10,  Z  /D  =  0, 0 = Oc
200

-------
                                HORIZONTAL DISTANCE X/D
Fin. B-25   T-:rr.re;-at'jrc-Trajectory  C lart fcr y.Mtip'Ie Oets Discharging  into a
                Lif v-rf.  Strnt-^rt ;..••;•'•.. Eo'ry of Iv
i / ri
»-/ L.
=. r\
   -

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a

r-4

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     140
     120
     100
                                                HORIZONTAL DISTANCE X/D
                  Fig. B-27  Temperature-Trajectory Chart for f'ultiple Jets Discharging into a
                             Stratified, Stagnant La-oe Body of Water:  MNS L/D =10, Z /D = 0, 0 = 60C

-------
                                                          ZS/D = o
                                                          e = 90°
                                                          TERMINAL HEIGHT
      Fig. B-28a  Terminal  Height  of  Rise for Multiple Jets Discharging Vertically
                 into a Stratified Large Body of Water:  MNS L/D =  10, Z /D = 0
                 9 = 90°
  140
  120
  100-
   80-
CJ
3 60
_i

£ 40
C£
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>

   20
                                                          MNS L/D = 10
                                                          Z$/D - 0
                                                          e = 90°
                                                          ATc = .05
                                            St = 2500
                                                 100
     10
                           20
40
60
80    100
                               FROUDE NUMBER
     Fig.  B-28b  Height Where Plume Centerline Temperature Difference is 5% of Initial
                ofrWatlr-PleMNSetL/DD=Sfoa,li58 V=eroVCea1=^Oint0 a Strat^^d Large Body
                                    142    S

-------
00
         140
         120
         100
     2    80
           60
           40
           20
                                                                                                   4 ms L/D = 10
                                                                                                     ZS/D = 10

                                                                                                     6  = 0°
                       20
40
60
140
160
180
                             80        100       120

                           HORIZONTAL DISTANCE X/D
Fig.  B-29  Temperature-Trajectory Chart  for .'-'ultiple Jets Discharging into  a
          Stratified, Stagnant Large  Body of Water:  MNS L/D = 10,  ZC/D  =  10, 0 = 0
200

-------
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O
 .
O
     140
     120
     100
      80
      60
      40
      20
                                                             MNS L/D =  10
                                                             ZS/D = 10

                                                             9 = 30°
                  20
40
60
140
160
                            80        100       120

                          HORIZONTAL DISTANCE  X/D
Fig.  B-30  Temperature-Trajectory Chart for r'ultiple Jets Discharging into a
180
                               Stratified, Stagnant Lerge Body of Water:   MNS L/D = 1C, Z /D = 10, 0 = 30°
200

-------
     140
O

t-4

LU
o

•<

to
t—I
o
                             20
                     Fig. 8-31
                  40                  60                   80

                HORIZONTAL DISTANCE X/D

Temperature-Trajectory Chart for Multiple Jets Discharging into a
Stratified, Stagnant Large Body of Viater:
                                                                           KNS L/D = 10,
ZS/D = 10, G
= 60C

-------
    200,	
       Fig. B-32a  Terminal Height of Rise for Multiple Jets  Discharging  into a
                  Stratified, Stagnant Large Body of Water:   MNS L/D  - 10,  Z /D = 10,
                  8 - 90°                                                  s
   140
   120 .
  100 -•
ui 80

I
S 60
   40
   20 .
                                                                   H	h
                               MNS L/D = 10
                               ZS/D = 10
                               e = 90°
                                100
     10
20
40
60
                                                                       -t	1-
80
                                                                             100
                                FROUDE NUMBER
      F1g. B-32b  Height Where Plume Centerline  Temperature Difference  is 5% of  Initia1
                 for Multiple Jets Discharging into a'stratitied, Stagnant
                 Body of Water:  MNS L/D = 10, Z /D = 10, G  = 90°
                                    146         s

-------
    140
o
                                                                                                 MNS L/D = 10
                                                                                                 Z$/D = 30

                                                                                                 6 = 0°
                                                 80        100       120
                                               HORIZONTAL DISTANCE X/D
Fig.  B-33  Temperature-Trajectory Chart for Multiple Jets Discharging into a
           Stratified.  Stagnant  Larae Bodv of Water:  M,NS L/D = 10, Z_/'D = 3
                                                                                                30, 6  = 0'

-------
to
•—•
O
t_>
H-«

fe
                                                 80        TOO        120

                                               HORIZONTAL DISTANCE X/D

                      Fig.  B-34   Temperature-Trajectory  Chart  for  Multiple  Jots  Discharging  into  a
                                 Stratified,  Stagnant  Urge Body of Water:  .YNS  L/D  =  10,  Z  /D  =  30,  0 =  30°

-------
140
                        20
                Fig. B-35
                  40                  60

                HORIZONTAL DISTANCE X/D
Temperature-Trajectory Chart  for f'ultiple Jets Discharging into a
Stratified, Stagnant Large  Body of  Water:  MNS L/D = 10, Z$D = 30, 0 = 60C
100

-------
   200
                                                           6 * 90°
                                                           TERMINAL HEIGHT
       10                   20                    40          60       80     100
      F1g.  B-36a  Terminal Height of Rise for Multiple  Jets  Discharging Vertically
                 into a Stratified, Large Body of Water:  MNS L/D = 10, Z /D = 30,
                 0  = 90°                                                s
  140


  120



  100
uj 80
o

I
S 60
   40.
   20-
                                MNS L/D =  10
                                ZSD = 30
                                e = go0

                                ATc = .05
                                  o
     10
20
40
60
100
                                FROUOE  NUMBER
     Fig. B-36b  Height Where Plume Center!ine  Temperature  Difference  is 5% of  Initial
                for Multiple Jets Discharging  Vertically into  a  Stratified Large
             .   Body of Water:  MNS L/D = 10,  ZSD = 30,0= 90°
                                    150

-------
740
             20
40
60
140
160
180
                          80         100        120
                        HORIZONTAL DISTANCE X/D
Fig. B-37 Temperature-Trajectory Chart for MuHif.le Jets Discharging  into a
         Stratified,  Stagnant Large Body of Water:  f-'NS L/D =  20,  ZS/D = 0,0 = 0
200

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Q
M
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          140
tn
to
     o
                                  20
80
                              40                   60
                            HORIZONTAL DISTANCE  X/D
Fig.B-39 Temperature-Trajectory Cr-art for Multiple -Jets Discharging into a
         Stratified, Stagnant Laroe Body of Water:  i'NS L/D = 20, Z./D =0,0
                                                                                                       = SOC

-------
                                                           e = 90°
                                                           TERMINAL HEIGHT
      Fig.B-40a  Terminal  Height of Rise for Multiple Jets Discharging Vertically
                into  a  Stratified Large Body of Water:  MNS L/D = 20, Zg/d = 0, 0=
140


120



100
   80  -
O
g
S 60
o
Of
UJ
   40
   20
                                                                       ^	h-
                                                            MNS L/D = 20
                                                            ZS/D = o
                                                            e= 90°
                                                            ^=.05
       St = J500_

            1000
             500
            JOO.
     10
                         20
40
60
80    100
                                FROUDE NUMBER
     Fig. B-40b  Height Where Plume Center!ine  Temperature  Difference  is  5%  of Initial
                 for Multiple Oets  Discharging  Vertically into  a  Stratified  Large  Body
                 of Water:   MNS L/D =  20,  Z_/D  =  0, e  =  90°
                                    154    s

-------
           140
en
      LU
      Q
	 —I 	
ATc
* v« _
AT. ~
	 1 	
.05
H 	 . 	 1 	 1 	 1 	 1 	 I 	 1 	 	 	
                        20
40
60
140
160
                            80        100       120
                          HORIZONTAL DISTANCE X/D
Fig.  B-41   Temperature-Trajectory Chart for .""'M Hi pie Jets Discharging  irto  a
180
                                     Stratified, Stagnant Large  Body  of  Water  :  KMS L/D = 20,z /D = 10, 0 = Oc

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                  20
40
                     Fig. B-42  Temperature-Irejecto
60        80        100       120

        HORIZONTAL DISTANCE X/D
140
160
                   I IWI \dk A. VI 1 I nil. W A */ I * M IV L. * •/ \J

     'emperature-Trejectory Chart for ''ultiple Jets Discharcir.g irto a

     Itratified, Stagnart Lerge Body of Water:  MNS L/D = 20, ZS/D = 10,
180
                                                                                                     G =  30°
200

-------
ts>
»—»
Q
     140
     120
     100
      80
      60
      40
      20
                                                                                           MNS L/D = 20
                                                                                           ZS/D = 10

                                                                                           e = 60°
                            20
  40                  60

HORIZONTAL DISTANCE X/D
                                                           80
                     Fig. B-43  Temperature-Trajectory Chart for Multiple Jets Discharging into a
                                <\tr;»-M'fipH. ^tnnnant iarnp RnHv nf Uatpv.   f'.N.S 1 /n = ?f). 7 /D = 1
Stratified, Stagnant Large Body of
ZS/D
                                                10, 0 =  60(
                     	L

                      100

-------
 o
 Kl
 LU
 O
 <
                                                             e = 90°
                                                             TERMINAL HEIGHT
       10                   20                    40          60       80     100
     Fig. B-44a  Terminal Height of Rise  for  Multiple Jets Discharging Vertically
                 into a Stratified Large  Body of Water:.  MNS L/D = 20', Z /D = 10,
                 Q = 90°
  140
  120
  TOO-

Q
M
U4 80
O

I
S 60
   40.
   20-
                                                            MNS  L/0  =  20
                                                            ZS/D = 10
                                                            e =  90°
                       100
     10
20
40
60
80
100
                                FROUDE NUMBER
     Fig. B-44b  Height Where Plume Centerline Temperature  Difference  is  5%  of  Initial
                 for Multiple Jets Discharping Vertically into  a  Stratified  Larae
                 Body of Water:  MNS L/D ="20, Z$/D « 10, 0 =  90°
                                    158

-------
         140
     Ixl
en    
-------
CO
>•••«
Q
                                                                                         ZS/D = 30
                                                                                         6  = 30°
                                                                                         160
                            80        100       120       140

                          HORIZONTAL DISTANCE X/D
Fig. B-46  Temperature-Trajectory  Chart  for  rultiple  Jets Discharging  into a
           Stratified,  Stagnant  Lerce  Body of  Water:  K"~ '  "   "  ~  •'
180
200
                                                                              L/D = -20,- Zs/D = 30,  G = 30°

-------
         140
         120
         100
          80
2    I    60
           40
           20
                                  St   =  2500
                                S.   = 1000
                                '  2
                                                                     100
                                 20
                                                                                             	* -T^=  .05
               » o
                                                                                                     , -=
MNS L/D = 20
ZS/D = 30
e= 60°
 80
                           40                  60

                         HORIZONTAL DISTANCE X/D
Fia.  B-47   Temperature-Trajectory Chart for f^ultiple Jets Discharging into a
           Stratified, Stagnant La-ge Body of water:   KNS L/D = 20, Z$/D = 30, 0 = 60C
100

-------
   200
Q
      10                   20                    40          60       80     100
      Fig. B-48a  Terminal Height of Rise for Multiple  Jets  Discharaing Vertically
                 into a Stratified Large Body of Water:  MNS  L/D ="20, Z D = 30,
                 a = 90°                                               s
  120-
  100
   80-
   20.
                               MNS L/D  =  20
                               Z$D =  30
                                                            =-90

                                                                •05
                               St = 2500
     10
20
40
60
80
100
                                FROUDE NUMBER
     Fig.  B-48b  Height Where  Plume  Centerline Temperature Difference is 5% of Initial
                 for Multiple  Jets Discharging Vertically into a Stratified Laroe Body
                 of Water:   MNS L/D  =  20,  Z.D = 30, 0 = 90°              e° Ldrye D  *
                                    162

-------
             APPENDIX C
Nomograms for Discharge into Moving,
    Non-Stratified Water, (RCN)
                 163

-------
                            TABLE III
 Figure Numbers Corresponding to Plume Behavior From Single Port
Submerged Diffusers Discharging into Moving, Non-stratified Water
k
0.5
1
2
4
6
•8
12
16
Discharge Angle
Co-flow
0-0°
C-1,2
C-3,4
C-5,6
C-7,8
C-9,10



Cross -flow
9=90°


C-19,20
C-21,22
C-23,24
C-25,26
C-27,28
C-29,30
0=30°


C-11,12
C-13,14




0=60°


C-15,16
C-17,18




                                165

-------
          14
          12
                                                                                   RCN   k - 0.5
                                                                                   TEMPERATURE CHART
                                                                                   0 =  o;o°
          10
     S    8
     o
(ft
CTl
                             20
40            '   60


  HORIZONTAL DISTANCE X/D
80
100
120
                       Fig. C-l  Temperature-Trajectory Chart for a Single Oet Discharging into a
                                 Non-Stratified, Moving Large Body of Water:  RCN k = 0.5, 9 = 0.0°

-------
   14
   12-
   10
00    c.
     6
                                                                                      RCN  k = 0.5
                                                                                      WIDTH CHART
                                                                                      0 = 0.0°
                                                                                               F =
                                        40                60

                                          HORIZONTAL DISTANCE
            80
100
120
X/D
                   Fig.  C-2  Width-Trajectory Chart for a Single Jet Discharging  into  a  Non-
                            Stratified, Moving Large Body of Water:  RCN  k = 0.5,  G = 0.0°

-------
          14
          12
                                                                                     RCN   k  = 1.0

                                                                                     TEMPERATURE CHART
                                                                                     0  =  0.0°
          10
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     ex:
     UJ
                              20
                        Fig. C-3
              40                60


                HORIZONTAL  DISTANCE X/D
80
100
120
Temperature-Trajectory  Chp.rt  for  a  Single Jet Dische^ing int
Non-Stratified, Moving  Large  Body cf Water:   RCN1 k = 1, G =
         into a

-------
<£>
      o
         12 -
         10 •
          8 -
•=c
5   6
Q
      uj   4
                            RCN  k = 1.0
                            WIDTH CHART
                            0 = 0.0°
                                                                                                    F =
                                                40               60

                                                 HORIZONTAL DISTANCE
                                                                             80
100
120
                                                                X/D
                          Fig. C-4  Width-Trajectory Chart for  a  Single  Jet  Discharging  into a
                                    Non-Stratified,  Moving Large  Body  of Water:   RCN   k  = 1.0, 0 = 0.0°

-------
Ul
o
t/1
»— I
a
o
                                                                         RCN  k = 2.0
                                                                         TEMPERATURE CHART
                                                                         © = 0.0°
                                                 80        100       '120


                                               HORIZONTAL  DISTANCE  X/D
                   Fig.  C-5  Temperature-Trajectory Chart for a Single Jet Discharging into a
                             Non-Stratified, Moving l.args Body of Water:  RCN k = 2.0", 0 = 0°

-------
35
• 	 1 	 1 	 1 	 1 	
	 1 	 1 	 1 	 1 	 1 	
X

30-1
25+
20r
RCN  k = 2.0
WIDTH CHART
0 = 0.0°
            20
        40
60
     80        100

HORIZONTAL DISTANCE
120
140
                                                                                    160
                                                                               180
                                                                        200
                Fig. C-6  Width-Trajectory Chart for a  Single  Jet  Discharging  into a Non-
                          Stratified, Moving Large Body of Water:   RCN   k  =  2.0, 0 = 0.0°

-------
     35
a
ivl
     30
     25
     20
                                                                                       RCN   k = 4.0
                                                                                       TEMPERATURE CHART
                                                                                       0 =  0.0°
O
O
     15
     10
      5.
                  20
                                                HORIZONTAL DISTANCE  X/D
                   Fig.  C-7   Temperature-Trajectory  Chart  for  a  Sir.gls  Jst  Discharging into a
                             Non-Stratified,  Mcvirg  La.-go  Body cf V!-ter:   RCN <  =  *.0, r-: = 0°

-------
   35
LU
o
   30 ••
   25 -.
   20  ••
a




s   15
»—I
I—
Qi
    10
RCN k = 4.0

WIDTH CHART

0 = 0.0°
                                                HORIZONTAL DISTANCE  X/D


                  Fig.  C-8  Width-Trajectory Chart for a  Single  Jet Discharging into a Non-

                           Stratified,  Moving  Large Body of Water: RCN k = 4.0,  0 = 0.0°

-------
UJ
o
l/l
•"•
O
a:
     6.
                  .3,
                                                                                   RCN  k = 6.0
                                                                                   TEMPERATURE CHART
                                                                                   0 = 0.0°
                20
40
60        80        100       120

       . HORIZONTAL DISTANCE   X/D
140
160
                                                                                                   180
-oO
                 Fig.  C-9  Temperature-Trajectory Chart for a Single Jet Discharging irto a
                           Non-Stratified, Moving Lerge Body of Water:   RCN k  =  5.0, 6=0°

-------
                                                                                                 F = 50
     6  -.
     5  •
00
»—I

Q
00    O
i—i    O
=-    2  -
      1  ..
                X
                                                                            30
                                                                                           RCN k = 6.0
                                                                                           WIDTH CHART
                                                                                           0 = 0.0°
                                                                                                              75
                                                                                                             100
                   20
                            40
60        80         100

       HORIZONTAL DISTANCE
120
140
160
180
                                                                                                                200
                   Fig. C-10 Width-Trajectory Chart for a Single Jet Discharging into a
                            Non-Stratified, Moving Large Body of Water: RCN k = 6.0, 0 = 0.0°

-------
           35
en
      UJ
oo
I — «
o
      o
      I—(
      1—
      o;
           30  ..
           25
           20
            15  ..
            10
             5  ..
                                                               AT
                                                                                         RCN k = 2

                                                                                         TEMPERATURE CHART

                                                                                         0 = 30°
                                              -f-
                                                                                                              F =  5
                         20
                             40




                        Fig. C-ll
60         80        TOO

  HORIZONTAL DISTANCE  X/D
120
140
160
180
                                          Temperature-Trajectory Chart for a Single Jet Discharging into a

                                          Non-Stratified, Keying Large Body of Hater:  RCN k = 2, 9 = 30°
200

-------
     35
LU
O
     30
     25
20
     15
     10
    .. 5
              RCN    k « 2
              WIDTH CHART
              0 =  30°
                                   W
                  20
                      40
60
80
TOO
/120
140
160
                                                                                                    180     -  200
                                               HORIZONTAL DISTANCE  X/D
                  Fig. C-12  Width-Trajectory Chart  for  a  Single Jet Discharging into a
                             Non-Stratified, Moving  Large  Body  of  Water:   RCN  k = 2, 0 = 30°

-------
oo
          35
          30 --
          25 --
          20  --
          10 —
           5 "
                                           AT,
                                                                                             F = 15
                                                        RCN  k = 4

                                                        TEMPERATURE CHART

                                                        0 = 30°
                      20
40
60
80        100       120

HORIZONTAL DISTANCE X/D
140
160
180
                        Fig.  C-13   Temperature-Trajectory  Chart for a Single Jet Discharging into a
                                   Non-Stratified,  Moving  Large Body of Water:  RCN k = 4, 0 = 30°
                                                                                  4-
                                                                                  i
200

-------
     35
CO
>—<
Q
o
     30
     25
     20
     15
     10
    .  5
                     RCN   k = 4
                     WIDTH CHART
                     0 = 30°
                  20
40
60
80
100
'120
                                               HORIZONTAL DISTANCE  X/D
140
160
180     •  200
                  Fig. C-14  Width-Trajectory Chart for a Single Jet Discharging into a
                             Non-Stratified, Moving Large Body of Water:  RCN k = 4,  Q = 30°

-------
00
o
      oo

      o
       o;
       UJ
                                                                                             RCN  k  =  2

                                                                                             TEMPERATURE CHART

                                                                                             0  =  60°
                          20
40
60        80        100       120

    HORIZONTAL DISTANCE  X/D
                               Fig.  C-15  Temperature-Trajectory Chart for a Single  Jet Discharging into a
                                          Non-Stratified,  Moving Large Body of Water:   RCN   k  =  2,  0 = 60°

-------
           35,—
     Ul
     O
2   o
           30
           25
20
           10
            5.
                          RCN   k - 2
                          WIDTH CHART
                          0 = 60°
                                                                                                                  •  200
                                                     HORIZONTAL  DISTANCE  X/D
                        Fig.  C-16   Width-Trajectory  Chart 1'or 'a Single ost Discharging into a_
                                   Non-Stratified, Moving Large Body of Water:  RCN k = 2, G = 60°

-------
            35
                                                                                                              F  =  15
CD
r\>
       LU
       o
      o:
      UJ
           30--
           25--
           20 --
           15 --
                          .06
                      .08
                                                                 AT
 .04
                                                                                       RCN  k = 4
                                                                                       TEMPERATURE CHART
                                                                                       0 = 60°
                        20
40
80
100
120
140
160
180
                                                HORIZONTAL  DISTANCE  X/D
                         Fig.  C-17  Temperature-Trajectory  Chart  for a Single Jet Discharging into a
                                    Non-Stratified,  Moving  Large  Body of Water:  RCN  k = 4, 0 = 60°
200

-------
            35
oo
      Ul
      o
      o
      t—«

      C£.
            30"
            25
20
15
            10
            RCN   k = 4
            WIDTH CHART
            0 = 60°
                                                                                                           1
                        20
                       40
60         80        100       '120

         HORIZONTAL  DISTANCE   X/D
140
                                                                                                160
                         Fig.  C-18   Width-Trajectory  Chart  'ror  a  Single Jet  Discharging  into a
                                    Non-Stratified, Moving  Large  Body .of Water:   RCN  k"= 4, 0 =  60°
                                                                                                180
200

-------
CO
      UJ
      o
      
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          35
     30"
                                                                                                RCN   k  =  2.0
                                                                                                WIDTH CHART
                                                                                                0 = 90°
          25
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     2=
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     cc
     UJ
     20
15
          10
                                                                                                2.5
                                                                                       _  30


                                                                                       'Z-  "75

                                                                                       —  -150
                                                                                                                 -  1
                       20
                            40
                                 60         80        100       '120

                                        •  HORIZONTAL DISTANCE   X/D
140
160
180
                                                                                                                     200
                        Fig. C-20  Width-Trajectory Chart for a Single Jet Discharging into a
                                   Non-Stratified, Moving Large Body of Water:  RCN k = 2.0, 0 = 90e

-------
oo
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      ce.
      UJ
                                                                                                RON   k  =  4.0

                                                                                                TEMPERATURE CHART
                                                                                                9  =  90°
                                                     HORIZONTAL DISTANCE   X/D


                        Fig. C-21  Temperature-Trajectory Chart for a Single Oet Discharging into a

                                   Non-Stratified, Moving Urge Body of Water:   RCN k = 4.0, 0 = 90s

-------
03
      LU
      CO
      •— •
      Cl
      o
                                                                                                  RCN  k = 4.0
                                                                                                  WIDTH CHART
                                                                                                  0 = 90°
                                                      HORIZONTAL DISTANCE  X/D

                         Fig.  C-22  Width-Trajectory  Chart  for  a  Single  Oet  Discharging into a
                                   Non-Stratified, Moving  Large  Body  of Water:   RCN  k  = 4.0, G = 90'

-------
00
oo
        UJ
        1/1
        I— I
        a
                                                                                                RCN  k = 6.0
                                                                                                TEMPERATURE CHART
                                                                                                0 = 90°
                                                         80         100       '120


                                                       HORIZONTAL DISTANCE   X/D
                          Fig. C-23  Temperature-Trajectory Chart for a Single Oet  Discharging  into
                                     a Non-Stratified, Moving Large  Body of Water:   RCN  k  =  6.0,  9 =  90°

-------
           35
00
      Kl
      l/l
      t—t
      o
      
-------
      70
UJ
o
oo
      60.
      50
      40
      30
      20
      10
                                            F  =  2.5
                                                             RCN   k  =  8.0
                                                             TEMPERATURE CHART
                                                             0  =  90°
                 20
40
60        80      '  100       120
         HORIZONTAL DISTANCE  X/0
                                                                                140
                                                              160
                   Fig. C-25  Temperature-Trajectory Chart for a Single Jet Discharging into
                              a Non-Stratified, Fovi-.-j Large Body of Water:  RCN k -- 8.0, ? = 90'
180
200

-------
      70
a

KI


Ul
O
z
«C

CO
»—I
a
a:
     60
      50
40
      30
      20
      10
                                          12
                                                                                      RCN  k = 8.0
                                                                                      WIDTH CHART
                                                                                      0 = 90°
                  20
                        40
60        80        100       120

         HORIZONTAL DISTANCE  X/D
140
160
180
200
                     Fig.  C-26  Width-Trajectory Chart for a Single Get Discharging into a
                               Non-Stratified, Moving Large Body of Water:  RCN k = 8.0, 0 = 90C

-------
           70
r\j
     IM



     Lul
     oo
     l-«4
     a
      o
      »•—«

      fe
           60
           50
40
           30
           20
           10
                                                                                              RCN  k = 12.0

                                                                                              TEMPERATURE CHART
                                                                                              0 = 90°
                       20
                                  60         80        100       120

                                           HORIZONTAL DISTANCE  X/D
140
160
180
                                                                                                                      200
                         Fig. C-27  Temperature-Trajectory Chart for a Single Jet Discharging  into

                                    a Non-Stratified, Moving Large Body of Water:  RCN k = 12.0, G  =90°

-------
Co
     O
     to
     »— <
     O
                                                                                               RCN  k = 12.0
                                                                                               WIDTH CHART
                                                                                               0 = 90°
                                                       80        100
                                                      HORIZONTAL DISTANCE
                           F1g. C-28  Width-Trajectory Chart for a Single Jet Discharging into  a
                                      Non-Stratified, Moving Large Body of Water:   RCN k = 12.0,  0 =  90°

-------
<£>
      INI
                                                                                           RCN  k = 16.0
                                                                                           TEMPERATURE CHART
                                                                                           0 = 90°
                                                       80      '  TOO       120

                                                      HORIZONTAL DISTANCE  X/D
                          Fig. C-29  Temperature-Trajectory Chart for a Single Jet Discharging  into
                                    a Non-Stratified, Moving Large Body of Water:  RCN k = 15.0, G = 90'

-------
O

1
CO
UJ
                                                         RCN  k = 16.0
                                                         WIDTH CHART
                                                        • 6 = 90°
                  20
40
60
 80        TOO

HORIZONTAL DISTANCE
120
X/D
140
                                                                                          160
                                                                       180
                    Fig.  C-30  Width-Trajectory Chart for a Single Jet Discharging into a
                              Non-Stratified, Moving Large Body of Water:  RCN k = 16.0, 6 = 90°
                                                                        200

-------
             APPENDIX D
Nomograms for Discharge into Moving,
      Stratified Water (RCS)
                197

-------
                         TABLE IV

Figure Numbers Corresponding to Plume Behavior for Diffuser
   Discharging into Moving and Stratified Ambient Water
st
100
500
k = 2
F = 10
D-1,2
D-9,10
F = 30
D-3,4
D-11,12
k = 4
F = 30
D-5,6
D-13,14
F = 75
D-7,8
D-15,16
                            199

-------
         24


         22




         20



         id


         16
                                                                                RCS   k » 2
                                                                                F = 10, St -  100

                                                                                TEMPERATURE CHART
no
o
o
     o
14



12



10



 8



 6



 4
                       20
                       40
60
 80        100       120

HORIZONTAL DISTANCE  X/D
140
160
180
                          Fig.  D-l  Temperature-Trajectory for^a Single Jet Discharging into a
                                   Stratified, Moving Large Body of Water:  RCS_ k = 2, S,. * 100, F = 10
                                                                                                                   200

-------
ro
o
                                                                                           RCS   k - 2

                                                                                           F = 10.  St

                                                                                           WIDTH CHART
                       20
40
60
 80        100       120


HORIZONTAL DISTANCE  X/D
                          F1g.  D-2   Width-Trajectory Chart for a Single Oet Discharging into a

                                    Stratified, Moving Large Body of Water:  RCS k = 2, St = TOO, F = 10

-------
ro
o
         24

         22


         20


         id

         16


         14

      o-
      £  12
UJ
          10
           4


           2


           0
                                   AT
                                                                                   RCS   k - 2
                                                                                   F = 30,  St - 100
                                                                                   TEMPERATURE CHART
                       20
                                      60
 80        100       120

HORIZONTAL DISTANCE  X/D
140
160
180
                          F1g. D-3  Temperature-Trajectory  Chart for a Single Oet Discharging Into
                                    a Stratified,  Moving  Large Body of Water:  RCS k = 2, S. = 100, F «= 30
200

-------
o
CO
20
40
60
                                                      80        100       120

                                                     HORIZONTAL DISTANCE  X/D
140
160
180
                          F1g.  D-4  Width-Trajectory Chart for a Single Jet Discharging into a
                                   Stratified, Moving Large Body of Water:  RCS k = 2, St = TOO,  F = 30
                                                                                  200

-------
ro
o
                       TEMPERATURE CHART
                      20
40
60
 80        100       120


HORIZONTAL DISTANCE  X/D
140
160
180
200
                         F1g. D-5  Temperature-Trajectory Chart for a  Single Jet Discharging Into

                                   a Stratified, Moving Large Body of  Water:   RCS  k = 4, St = TOO, F = 30

-------
INS
O
                       20
40
60
 80        TOO       120

HORIZONTAL DISTANCE  X/D
140
160
180
200
                          fig.  D-6  Width-Trajectory  Chart  for a  Single Oet Discharging into a
                                    Stratified,  Moving  Large  Body of Water:  RCS k = 4, St = 100, F = 30

-------
ro
o
                     TEMPERATURE CHART
                                40
60
 80        100       120

HORIZONTAL DISTANCE  X/D
140
160
180
200
                          F1g. D-7  Temperature-Trajectory Chart for a Single Oet Discharging into
                                   a Stratified, Moving Large Body of Water:  RCS k = 4,  St = 100,  F •  75

-------
IV)
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                     RCS    k  -  4
                     F =  75.  St

                     WIDTH  CHART
                                                      80        100       120

                                                     HORIZONTAL DISTANCE  X/D


                          Fig. D-8  Width-Trajectory Chart for a  Single  Jet  Discharging  Into  a
                                    Stratified, Moving Large  Body of Water:
RCS k = 4, St = 100, F = 75

-------
o
00
                      F - 10,  St - 500
                      TEMPERATURE CHART
                                                     80        100       120

                                                    HORIZONTAL DISTANCE  X/D
140
160
180
                         Fig.  D-9  Temperature-Trajectory Chart for a Single Oet Discharging into
                                   a  Stratified, Moving Large Body of Water:  RCS k = 2, S. = 500, F
200
                 = 10

-------
F - 10,  St -  500
20
40
60
 80        100       120

HORIZONTAL DISTANCE  X/D
140
160
180
200
   Fig. D-10  Width-Trajectory Chart for a Single Jet  Discharging  into a
             Stratified, Moving Large Body of Water:   RCS  k  =  2,  S  = 500, F = 10

-------
TEMPERATURE CHART
            40
60
 80        100       120

HORIZONTAL DISTANCE  X/D
140
160
180
200
    F1g. D-11  Temperature-Trajectory Chart for a Single Jet Discharging into
               a Stratified, Moving Large Body of Water:  RCS k = 2, S  = 500, F «= 30

-------
ro
                       20
40
60
 80        100       120
HORIZONTAL DISTANCE  X/D
                          F1g. D-12  Width-Trajectory Chart for a Single  Jet  Discharging  into  a
                                     Stratified, Moving Large Body of Water:   RCS  k  =  2,  St  =  500,  F  =  30

-------
r\>
ro
                      RCS   k - 4
                      F = 30,  St «

                      TEMPERATURE CHART
                                                      80        100       120

                                                     HORIZONTAL DISTANCE  X/D
                          Fig.  D-13   Temperature-Trajectory Chart for a Single Oet Discharging Into
                                     a  Stratified, Moving Large Body of Water:  RCS k = 4, S. = 500, F = 30

-------
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                     F - 30, S  •  500
                                                      80        100       120
                                                     HORIZONTAL DISTANCE  X/D
140
160
180
                          Fig.  D-14   Width-Trajectory Chart for a Single Oet Discharging into a
                                     Stratified, Moving Large Body of-Water:  RCS k = 4, S.  = 500, F = 30
200

-------
TEMPERATURE CHART
  20
40
60
 80        100       120
HORIZONTAL DISTANCE  X/D
     Fig. D-15  Temperature-Trajectory Chart for a Single Oet Discharing  Into
                a Stratified, Moving Large Body of Water:  RCS  k = 4,  St =  500,  F = 75

-------
ro
                      20
40
60
 80        100       120

HORIZONTAL DISTANCE  X/D
                         F1g. D-16  Width-Trajectory Chart for a Single Oet Discharging into a
                                    Stratified, Moving Large Body of Water:  RCS k = 4, S.  = 500, F = 75

-------
                  APPENDIX E
Nomograms for Vertical Discharge into Shallow,
    Stagnant Water (RNN, shallow discharge)
                       217

-------
                             TABLE V
Figure Numbers  Corresponding  to  Plume  Behavior  for  a  Single Port
 Diffuser Discharging  Vertically Upward  into  Kon-Slratified,
                   Stagnant,  Shallow Body  of  Water
Discharge
Depth
77 D
5
8.4
10
40
F = 1, 5, 25, 100
Centerl ine
Temperature
E-3

E-2
E-l
Surface
Temperature


E-4

Isotherms
F = 4r-

E-5


F = 51
E-6



                           218

-------
no
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      UJ
      O-
       oo
       o
                                                                              RNN (Shallow Discharge)
                                                                              Depth = 40 Diameters
                                                                              0 = 90°   '
                               Fig.  E-l
10                      20                     30                       40

        VERTICAL DISTANCE    Z/D

 Temperature Chart for vertical  Discharge  into  a Shallow, Non-
 Stratified, Stagnant Body of Water:   RNN,  0 =  90°,  Depth =  40  Diameters

-------
           1.0..
     Qi

     ID
ro
ro
o
            0.5--
     OO

     OO

     LU

     O
     X

     LU
RNN (Shallow Discharge)

Depth = 10 Diameters

0 = 90°

                                   i
1 1 1
1 1 1
3123
1 1 1 1
4567
i i
i i
8 9
                                                                                                            10
                                                 VERTICAL  DISTANCE   Z/D


                          Fig.  E-2   Temperature  Chart  for  Vertical  Discharge  into  a  Shallow,  Non-Stratified

                                    Stagnant  Body of Hater:   RNN, 0 =  90°,  Depth  = 10  Diameters

-------
                                                                                    RNN  (Shallow  Discharge)
                                                                                    Depth =  5 Diameters
                                                                                    G =  90°
I\J
     oo
     en
     UJ
     o
     X
     UJ
            1.0 —
                                                                                                          100
0.5--
     i-'J
     o
              0
                                                  VERTICAL DISTANCE Z/D


                           Fig.  E-3  Temperature Chart for Vertical Discharge into a Shallow, Non-Stratified,
                                     Stagnant Body of Water:   RNN,  0 = 90°,  Depth = 5 Diameters

-------
       O
fo
ro
       oo
       00
X
LU

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o;
            0.5 *
            0.4  --
            0.3  --
             0.2  --
             0.1 .-
                                                                         RNN (Shallow Discharge)
                                                                         SURFACE TEMPERATURES
                                               RADIAL DISTANCE   r/D

                       Fig.  E-4   Temperature  Distribution  at Surface for Shallow Discharge of a
                                 Vertical  Jet into  a Non-Stratified, Stagnant Body of Water:
                                 RNN,  9 =  90°,  Depth = 10  Diameters

-------
         10-
PO
ro
      UJ
                                                    4        5

                                         RADIAL  DISTANCE  FRCM CENTERLINE
R/D
                                 Fig. E-5   Isotherms  for a  Single Get  Discharging  Vertically into  a
                                           Non-Stratified,  Stagnant  Shallow  Body of Water:   RNN   0

-------
        5 -
        4 -
        3 -
     o
r>o    z;
ro    <:
*    fe
        2 -
        1 -
                                                                                                   =  .025
Discharge Level
                                      RNN (Shallow Discharge)
                                      G = 90°
                                      F = 51
                                      Depth of Discharge = 5 Diameters
                                                                            —i—

                                                                             12
468
RADIAL DISTANCE FROM CENTERLINE
                                                                                  10
                                                                         R/D
                         Fig.  E-6
                Isotherms for a Single Oet Discharging Vertically into a
                Non-Stratified, Stagnant Shallow Body of Water:  RNN  e = 90°

-------
                  APPENDIX F





Auxiliary Materials to Aid in Solving Problems
                    225

-------
                               —I—
                                                                        	J	1 _
      0
      QJ
      I/)
      CD
en   a.
      11

     CD
           10  +
            5 J-
                                                                         G Values  for  Froude
                                                                         Number Calculations
                                                                         C —
                                                                              /U
                                                                   To = 50° F
                                                                                        To =  70°  F
                                                        -+
                      10                            20

                     INITIAL TEMPERATURE DIFFERENCE ATQ   °F

Fig. F-l  Temperature-Density Relations for Froude Number Calculations
                                                                                                         30

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                                                                 T	T
        u
ro
ro
     a:
     UJ
     a:
     UJ
     Q-
     oo
     t/1
     CJ
     X
     UJ
     o

     o
     o
     o
             1.0
             0.8 -
             0.6 _
              0.4  _
              0.2 .
i—i—i—i—i—r
                                                                            GAUSSIAN  DISTRIBUTION CURVE
                                         1.0                     2.0

                                              RADIAL DISTANCE PARAMETER, n  «  4r/W
     3.0
                                                                                                    i     i     i
                              4.0
                                Fig.  F-2  Gaussian Distribution Curve used to find Off-Centerline  Temperatures

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    ro
    00
H
Z
o

o
                                                        TABLE F-l


                                            DENSITY OF WATER AS A  FUNCTION OF
                                                 SALINITY AND TEMPERATURE*
Temperature
°C/°F
Salinity ppt
0
5
10
15
20
25
30
35
40
0/32

.999,868
1.003,970
1.008,014
1.012,840
1.016,065
1.020,083
1.024,101
1.028,126
1.032,163
5/41

.999,992
1.004,006
1.007,967
1.011,915
1.015,858
1.019,799
1.023,743
1.027,697
1 ,031 ,663
10/50

.999,728
1.003,670
1.007,562
1.011,444
1.015,321
1.019,198
1.023,080
1.026,971
1.030,878
15/59

.999,127
1.003,012
1.006,847
1.010,674
1 .014,496
1.018,320
1.022,150
1.025,990
1.029,846
20/68

.998,234
1.002,068
1.005,857
1 ,009,638
1.013,416
1.017,196
1.020,983
1.024,781
1.028,595
25/77

.997,077
1.000,867
1.004,617
1.008,360
1.012,102
1.015,846
1.019,598
1.023,362
1.027,144
30/86

.995,678
.999,567
1.003,147
1.006,858
1.010,568
1.014,283
1.018,008
1.021,747
1.025,504
          *From U.S.  Naval  Hydraulic  Office W.D.,  1952,  Pub.  #615

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     Accession Number
  w
Subject Field & Group


     17B
SELECTED WATER RESOURCES  ABSTRACTS

       INPUT TRANSACTION FORM
     Organization
      Environmental  Protection Agency, National  Environmental  Research Center,  Pacific
      Northwest  ^ater Laboratory            '» National  Thermal  Pollution Research Program,
           	.—.	Con/all is
     Title
      Workbook of Thermal Plume Prediction: Volume  1,  Submerged  Discharge
10
Authors)
' 	 ornrcui, must a id H.
Davis, Lorin R.
16

21
Project Designation
16130 FHH
Note
                                           Heated  Plume  Behavior
 22
     Citation
               Environmental Protection Agency report
               number EPA-R2-T2-005a, August 1972.
 22 I Descriptors (Starred First)

      Jet flow, Thermal pollution*
 25
     Identifiers (Starred First)
      Submerged Oet
 271 this workbook contains computational  procedures  in  the  form of nomograms  designed to
satisfy several needs related to  the  discharge  of thermal  waste  into large bodies of water.
They provide estimates of  physical  spread  and temperature  distribution around  the discharge
point for the assessment of biological  and physical effects  of heated water. They can be
used as guidelines for setting  temperature standards  and for monitoring.  Finally, they have
utility in pre-design feasibility analyses and  outfall performance estimates.
     Data and analyses from numerous  sources constitute  the  backup material  for this publica-
tion. An attempt has been  made  to unify and present the  material in a format that is suffi-
ciently simple for a non-specialist user.  A number of illustrative examples are presented
which demonstrate the use  of each set of nomograms in practical  problems.
     The status of analysis at  this time is not sufficiently advanced to  encompass a wide
range of experimentally verified  predictive models. For  this reason, care must be exercised
when applying the generalized nomograms to specific situations.  The major restrictions for
each set of nomograms are  outlined  in the  text  which  the user is advised  to review carefully.
In general, the nomograms  provide meaningful qualitative information for  a wide range of
problems of practical interest, but their  use is subject to  scrutiny and  proper interpreta-
tion when applied to exacting design  conditions.
A
Hoi
ct
;t<
WR:I02
WRSI C
if a A
(REV
. Shirazi
Institution
National
Envirnnmpntal
JULY I969J SEND, WITH COPY OF DOCUMENT. TO
Research Center
. Con/a 11 ic
: WATER RE"SOUR"C^S"5ctENT IFIC INFORM*
VJ.S. DEPARTMENT OF THE INTERIOR
WASHINGTON, D. C. 20240
Oreaon^
AT ION SEW^r

ER
                                                                               * GPO: 1970-369-930

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