United States
Environmental Protection
Agency
Air and Energy Engineering
Research Laboratory
Research Triangle Park NC 27711
Research and Development
EPA/600/S8-88/009 Apr. 1988
x°/EPA Project Summary
Industrial Combustion
Emissions Model (Version 6.0)
Software Description
Tim Hogan
The Industrial Combustion Emissions
(ICE) Model is one of four simulation
models developed by the Environmen-
tal Protection Agency (EPA) for the
National Acid Precipitation Program
(NAPAP). These four models project
national and state level emissions of
sulfur dioxide (SOz), nitrogen oxides
(NOx), and volatile organic compounds
(VOCs) from all industrial and electric
utility sources in the U.S. This partic-
ular model, the ICE Model, projects to
the year 2030, SO2, sulfate, and NOX
emissions and the costs of their control
from industrial boiler fossil-fuel
combustion.
Version 6.0 of the ICE Model is
maintained on the IBM 3090 computer
system at the EPA National Computer
Center in Research Triangle Park, NC.
Requests to use or obtain the ICE
Model program should be directed to
the National Technical Information
Service (see ordering information at
back).
This Project Summary was devel-
oped by EPA's Air and Energy Engi-
neering Research Laboratory. Research
Triangle Park, NC, to announce key
findings of the research project that is
fully documented in a separate report
of the same title (see Project Report
ordering information at back).
Introduction
The Industrial Combustion Emissions
(ICE) Model was developed by Energy and
Environmental Analysis, Inc. (EEA) to
support EPA's analysis of acid deposition
control alternatives. The ICE Model is one
of a group of National Acid Precipitation
Assessment Program sectoral emissions
models. The ICE Model projects industrial
fossil-fuel-fired boiler:
• Fuel mix (natural gas, distillate and
residual fuel oil, coal)
• Air emissions (SO2, sulfates, NOX)
• Costs
by state for 1985, 1990, 1995, 2000,
2010, 2020, and 2030. The current base
year in the ICE Model (Version 3) is 1980.
All ICE Model computer programs have
been written in FORTRAN77. The ICE
Model was developed on the IBM 3090
Model 200 computer system at EPA's
National Computer Center in Research
Triangle Park, NC. All programs have
been compiled using the FORTVCL utility
on EPA's IBM system.
The full report describes the structure
of the ICE Model, Version 6.0, computer
programs, the ICE Model input and
output data files, and major internal
variables and constants used in the ICE
Model. In addition, it illustrates the use
of comment statements in the ICE Model
source code for one of the subroutines.
The necessary Job Control Language
to run the ICE Model is presented in a
separate report.
Computer Programs
The ICE Model (Version 6.0) consists
of three major computer programs that
are run in batches: CREATE6, FLCH6,
and TABLE6. CREATE6 and FLCH6 are
each run for every output year. Since
there are seven output years (1985,
1990, 1995, 2000, 2010, 2020, and
2030), CREATE6 and FLCH6 must be run
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seven times in the proper sequence (see
Figure 1). After these 14 jobs (seven
CREATES and seven FLCH6) have been
executed, TABLES is run. However, it is
possible to run a subset of the years (e.g.,
1985, 1990, 1995, and 2000), but
intermediate run years cannot be skipped
(e.g., not running 1985).
CREATES
CREATES projects the distribution of
the major industrial boiler characteris-
tics. CREATES reduces fossil fuel con-
sumption in existing industrial boilers by
an amount determined from the retire-
ment rate of units specified in the input
files. Similarly, it increases fuel con-
sumption in new industrial boilers by an
amount determined from new capacity
growth contained in the input files. For
new units, it assigns the boiler size,
expected annual capacity utilization rate,
SIP, previous coal experience assump-
tion (yes or no) and random variables
which are used in FLCH6. There are
about 500 lines of source code in
CREATES.
FLCH6
The FLCH6 program calculates the fuel
type, air emissions rate, and costs for
each new and existing industrial boiler
record processed by the CREATES pro-
gram. There are about 4,700 lines of
source code in FLCH6.
TABLE6
The TABLES program prints aggregate
ICE Model projections for industrial
fossil-fuel-fired boilers by year (1980
base year, 1985, 1990, 1995, 2000,
2010, 2020, 2030), including:
• S02 emissions by state
• NOx emissions by state
• Sulfate emissions by state
• Total annualized costs by state
• Fuel demand by fuel type and state
for all industrial boilers
• Fuel demand for new industrial boilers
by fuel type and state
• National fuel demand for new indus-
trial boilers by size, annual capacity
utilization rate, and fuel type
• National number of new industrial
boilers by size group, previous coal
experience (with or without), and fuel
type.
The TABLES program contains almost
500 lines of source code.
I I
Create Projected Population^
of Industrial Boilers
CREATES
I Aggregate
I Projections of
I Emissions and
\ Costs by State
Determine Fuel Type,
Emissions and Costs for
AII Industrial Boilers.
FLCH6
I
ESIM
Run Next
Model Year
Generate Output Tables.
For AII Years.
TABLES
Output Tables
For All Years.
Figure 1. ICE model jobs.
Tim Hogan is with Energy and Environmental Analysis, Inc., Arlington, VA
22209.
Larry G. Jones is the EPA Project Officer (see below).
The complete report, entitled "Industrial Combustion Emissions Model (Version
6.0) Software Description." (Order No. PB 88-191 176/AS; Cost: $14.95,
subject to change) will be available only from:
National Technical Information Service
5285 Port Royal Road
Springfield, VA 22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at:
Air and Energy Engineering Research Laboratory
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711
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Environmental Protection
Agency
Center for Environmental Research
Information
Cincinnati OH 45268
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