Environmental Technology Verification Test Report of Mobile Source Emission Control Devices Flint Hills Resources, LP CCD15010 Diesel Fuel Formulation with HJTEC4121 Additive Prepared by Southwest Research Institute RTI International HRTI INTERNATIONAL Under a Cooperative Agreement with U.S. Environmental Protection Agency oEPA EW ET ------- THE ENVIRONMENTAL TECHNOLOGY VERIFICATION PROGRAM oERA ™/ fijRTT U.S. Environmental Protection Agency T^^^T^^l ^fl_JL^^__M_ M INTERNATIONAL ETV Joint Verification Statement TECHNOLOGY TYPE: MOBILE DIESEL ENGINE AIR POLLUTION CONTROL APPLICATION: CONTROL OF EMISSIONS FROM MOBILE DIESEL ENGINES IN HIGHWAY USE WITH DIESEL FUEL FORMULATION TECHNOLOGY NAME: CCD15010 FUEL WITH HITEC4121 ADDITIVE COMPANY: FLINT HILLS RESOURCES, LP ADDRESS: 4111 EAST 37™ STREET NORTH WICHITA, KS 67220 PHONE: (316) 828-5002 FAX: (316) 828-4905 WEB SITE: http://www.fhr.com/ E-MAIL: Charley.Selvidge@fhr.com The U.S. Environmental Protection Agency (EPA) has created the Environmental Technology Verification (ETV) Program to facilitate the deployment of innovative or improved environmental technologies through performance verification and dissemination of information. The goal of the ETV Program is to further environmental protection by accelerating the acceptance and use of improved and cost-effective technologies. ETV seeks to achieve this goal by providing high-quality, peer-reviewed data on technology performance to those involved in the design, distribution, financing, permitting, purchase, and use of environmental technologies. ETV works in partnership with recognized standards and testing organizations; stakeholder groups, which consist of buyers, vendor organizations, permitters, and other interested parties; and with the full participation of individual technology developers. The program evaluates the performance of innovative technologies by developing test plans that are responsive to the needs of stakeholders, conducting field or laboratory tests (as appropriate), collecting and analyzing data, and preparing peer-reviewed reports. All evaluations are conducted in accordance with rigorous quality assurance (QA) protocols to ensure that data of known and adequate quality are generated and that the results are defensible. The Air Pollution Control Technology Verification Center (APCT Center), one of six centers under the ETV Program, is operated by RTI International (RTI), in cooperation with EPA's National Risk Management Research Laboratory. The APCT Center has evaluated the performance of an emissions control system consisting of a fuel formulation and additive. ------- ETV TEST DESCRIPTION All tests were performed in accordance with the Test/QA Plan for the Verification Testing of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Heavy Duty Diesel Engines and Light Duty Gasoline Engines and Vehicles and the Test-Specific Addendum to ETV Mobile Source Test/QA Plan for Flint Hills Resources for the CCD15010 Diesel Fuel Formulation. These documents are written in accordance with the applicable generic verification protocol and include requirements for quality management, QA, procedures for product selection, auditing of the test laboratories, and test reporting format. The mobile diesel engine air pollution control fuel formulation was tested October 18-27, 2006, at Southwest Research Institute. The performance verified was the percentage emission reduction achieved by the fuel formulation for particulate matter (PM), nitrogen oxides (NOX), hydrocarbons (HC), and carbon monoxide (CO) relative to the performance of the same baseline engine with standard ultra-low sulfur diesel (ULSD) fuel. Operating conditions were documented and ancillary performance measurements were also made. A summary description of the ETV test is provided in Table 1. Table 1. Summary Description of the ETV Test Test type Engine family Engine make-model year Service class Engine rated power Engine displacement, type Technology Technology description Test cycle or mode description Baseline fuel description Critical measurements Ancillary measurements Highway Transient Federal Test Procedure Emissions Test (SET) (FTP) and Supplemental MDD12.7FZAK Detroit Diesel Corp (DDC) - 1991 Series 60 , 6067GU60 Highway, heavy-duty diesel engine 365 bhp@ 1800 rpm 12.7 L, six-cylinder CCD15010with HITEC4121 Diesel fuel formulation with additive One cold-start and three hot-start tests plus tests according to FTP test supplemental emissions Ultra-low-sulfur diesel (ULSD) fuel with 15 ppm sulfur maximum PM, NOX, HC, and CO Carbon dioxide, exhaust backpressure, and fuel consumption VERIFIED TECHNOLOGY DESCRIPTION This verification statement describes the performance of the tested technology, CCD15010 diesel fuel formulation with H1TEC4121 additive, on the diesel engine identified in Table 1. ------- VERIFICATION OF PERFORMANCE The CCD15010 fuelformulation with HiTEC4121 additive achieved the reduction in tailpipe emissions shown in Table 2 compared to baseline operation without the additive. Table 2. Verified Emissions Reductions Technology CCD15010+HITEC4121 Mean Emissions Reduction (%) PM -0.74 a NOx 8.2 HC 17 CO 9.6 95% Confidence Limits on the Emissions Reduction (%) PM b NOx 7.3 to 9.0 HC b CO 5.3 to 14 Negative reduction indicates increase in emissions. b The emissions reduction can not be distinguished from zero with 95% confidence. The APCT Center QA officer has reviewed the test results and quality control data and has concluded that the data quality objectives given in the generic verification protocol and test/QA plan have been attained. EPA and APCT Center QA staff have conducted technical assessments of the test laboratory and of the data handling. These assessments confirm that the ETV tests were conducted in accordance with the EPA-approved test/QA plan. This verification statement verifies the emissions characteristics of the CCD15010 fuel formulation with HHEC4121 additive for the stated application. Extrapolation outside that range should be done with caution and an understanding of the scientific principles that control the performance of the technology. This verification focuses on emissions. Potential technology users may obtain other types of performance information from the manufacturer. In accordance with the generic verification protocol, this verification statement is valid, commencing on the date below, indefinitely for application of the CCD 15010 fuel formulation with HiTEC4121 additive within the range of applicability of the statement. Original signed by S. Gutierrez 5/16/07 Original signed by A. R. Trenholm 5/14/07 Sally Gutierrez Director National Risk Management Research Laboratory Office of Research and Development United States Environmental Protection Agency Date Andrew R. Trenholm Director Air Pollution Control Technology Verification Center Date in ------- Environmental Technology Verification Report Mobile Source Emission Control Devices Flint Hills Resources, LP CCD15010 Diesel Fuel Formulation withHiTEC4121 Additive Prepared by RTI International Southwest Research Institute EPA Cooperative Agreement No. CR831911 -01 -1 EPA Project Manager: Michael Kosusko Air Pollution Prevention and Control Division National Risk Management Research Laboratory Office of Research and Development U.S. Environmental Protection Agency Research Triangle Park, NC 27711 May 2007 ------- Notice This document was prepared by RTI International (RTI) and its subcontractor, Southwest Research Institute (SwRI), with partial funding from Cooperative Agreement No. CR831911- 01-1 with the U.S. Environmental Protection Agency (EPA). The document has been submitted to RTFs and EPA's peer and administrative reviews and has been approved for publication. Mention of corporation names, trade names, or commercial products does not constitute endorsement or recommendation for use of specific products. 11 ------- Foreword The Environmental Technology Verification (ETV) Program, established by the U.S. Environmental Protection Agency (EPA), is designed to accelerate the development and commercialization of new or improved technologies through third-party verification and reporting of performance. The goal of the ETV Program is to verify the performance of commercially ready environmental technologies through the evaluation of objective and quality- assured data in order to provide potential purchasers and permitters an independent, credible assessment of the technology they are buying or permitting. The Air Pollution Control Technology Verification Center (APCT Center) is part of the EPA's ETV Program, and is operated as a partnership between RTI International (RTI) and EPA. The APCT Center verifies the performance of commercially ready air pollution control technologies. Verification tests use approved protocols, and verified performance is reported in verification statements signed by EPA and RTI officials. RTI contracts with Southwest Research Institute (SwRI) to perform verification tests on engine emission control technologies. Fuel formulations and additives used to control emissions from mobile diesel engines are among the technologies evaluated by the APCT Center. The center developed (and EPA approved) the Generic Verification Protocol for Determination of Emissions Reductions Obtained by Use of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Diesel Engines and Light Duty Gasoline Engines and Vehicles to provide guidance on the verification testing of specific products that are designed to control emissions from diesel engines. The following report reviews the performance of the Flint Hills Resources, LP, CCD15010 diesel fuel formulation with HiTec4121 additive. ETV testing of this technology was conducted in October 2006 at SwRI. All testing was performed in accordance with an approved test/QA plan that implements the requirements of the generic verification protocol at the test laboratory. in ------- Availability of Report Copies of this verification report are available from: • RTI International Engineering and Technology Unit P.O. Box 12194 Research Triangle Park, NC 27709-2194 • U.S. Environmental Protection Agency Air Pollution Prevention and Control Division (E343-02) 109 T. W. Alexander Drive Research Triangle Park, NC 27711 Web site: http://www.epa.gov/etv/verifications/verification-index.html (.pdf format) IV ------- Table of Contents Section Page Notice ii Foreword iii Availability of Report iv List of Figures vi List of Tables vi Acronyms/Abbreviations vii Acknowledgments ix Section 1.0 Introduction 1 Section 2.0 Product Description 2 Section 3.0 Test Documentation 4 3.1 Engine Description 4 3.2 Engine Fuel Description 5 3.3 Summary of Emissions Measurement Procedures 5 3.4 Deviations from the Test/QAPlan 7 3.5 Documented Test Conditions 7 Section 4.0 Summary and Discussion of Emission Results 10 Section 5.0 References 16 ------- List of Figures Figure Page Figure 1. Sealed drums of Flint Hills Resources diesel fuels 2 Figure 2. Schematic of emissions sampling system at SwRI 6 Figure 3. Torque map of 1991 DDC Series 60 engine using ULSD baseline fuel 7 List of Tables Table Page Table 1. Selected Fuel Properties and Specifications 3 Table 2. Engine Identification Information 4 Table 3. Overview of Verification Test Sequence 5 Table 4. Test Engine Baseline Emissions Requirement for 1991 DDC Series 60 6 Table 5. Brake-Specific Fuel Consumption (by Carbon Balance) for Highway FTP Tests 8 Table 6. Brake-Specific Fuel Consumption (by Carbon Balance) for SET Tests 9 Table 7. Summary of Fuel Consumption Reduction 9 Table 8. Emissions Data from Highway Transient Tests 10 Table 9. Emissions Data from Baseline Supplemental Emissions Tests (SET) 11 Table 10. Emissions Data from Candidate Supplemental Emissions Tests (SET) 12 Table 11. Combined Emission Rates (U.S. Common Units) 14 Table 12. Combined Emission Rates (Metric Units) 14 Table 13. Summary of Verification Test Data (U.S. Common Units) 14 Table 14. Summary of Verification Test Data (Metric Units) 15 Table 15. Summary of Verification Test Emission Reductions 15 VI ------- Acronyms/Abbreviations APCT Center bhp bhp-hr BSFC C-B CFR cm CO C02 CVS DDC EPA ETV FHR FTP ft g HC HDDE hp kW kWh L Ib Ib-ft m mm NCDC NOX OTAQ PM Air Pollution Control Technology Verification Center brake horsepower brake horsepower-hour brake-specific fuel consumption carbon balance Code of Federal Regulations centimeter(s) carbon monoxide carbon dioxide constant volume sampler Detroit Diesel Corporation U.S. Environmental Protection Agency Environmental Technology Verification Flint Hills Resources, LP Federal Test Procedure foot (feet) gram(s) hydrocarbon(s) heavy duty diesel engine horsepower kilowatt(s) kilowatt hour(s) liter(s) pound(s) pound foot (feet) meter(s) millimeter(s) National Clean Diesel Campaign nitrogen oxides Office of Transportation and Air Quality particulate matter vn ------- QA quality assurance QC quality control rpm revolutions per minute RTI RTI International SET supplemental emissions test SwRI Southwest Research Institute TCEQ Texas Commission on Environmental Quality ULSD ultra-low sulfur diesel Vlll ------- Acknowledgments The authors acknowledge the support of all of those who helped plan and conduct the verification activities. In particular, we would like to thank Michael Kosusko, Project Manager, and Paul Groff, Quality Assurance Manager, both of the U.S. Environmental Protection Agency's (EPA's) National Risk Management Research Laboratory in Research Triangle Park, NC. We would also like to acknowledge the assistance and participation of all Flint Hills Resources, LP, personnel who supported the test effort. For more information on the CCD15010 diesel fuel formulation and HiTEC4121 additive, contact: Mr. Charley Selvidge Flint Hills Resources, LP 4111 East 3 7th Street North Wichita, KS 67220 Telephone: (316)828-5002 Fax: (316)828-4905 Email: Charley.Selvidge@fhr.com Web site: http://www.fhr.com For more information on verification testing of mobile sources air pollution control devices, contact: Ms. Jenni Elion RTI International P.O. Box 12194 Research Triangle Park, NC 27709-2194 Telephone: (919) 541-6253 Email: jme@rti.org ETV Web site: http://www.epa.gov/etv/ IX ------- Section 1.0 Introduction This report reviews the performance of the CCD15010 diesel fuel formulation, containing the additive H1TEC4121, submitted for testing by Flint Hills Resources, LP (FHR). Environmental technology verification (ETV) testing of this technology was conducted October 18-27, 2006, during a series of tests by Southwest Research Institute (SwRI), under contract with the Air Pollution Control Technology Verification Center (APCT Center). The APCT Center is operated by RTI International (RTF/ in partnership with the U.S. Environmental Protection Agency's (EPA) ETV Program. The objective of the APCT Center and the ETV Program is to verify, with high-quality data, the performance of air pollution control technologies, including those designed to control air emissions from diesel engines. With the assistance of a technical panel of experts assembled for the purpose, RTI has established an air pollution control technology program area specifically to evaluate the performance of alternative fuels, additives, emulsions, and lubricants as control technologies for mobile diesel engines. Based on the activities of this technical panel, the Generic Verification Protocol for Determination of Emissions Reductions Obtained by Use of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Diesel Engines and Light Duty Gasoline Engines and Vehicles1 was developed. This protocol was chosen as the best guide to verify the immediate performance effects of the CCD15010 fuel formulation with HiTEC4121 additive. To determine these effects, emissions results from a highway heavy-duty diesel engine using ultra-low sulfur diesel (ULSD) fuel were compared to emissions results obtained operating the same engine under the same conditions but with the CCD15010 fuel formulation containing the HiTEC4121 additive. The specific test/quality assurance (QA) plan addendum for the ETV test of the technology submitted by FUR was developed and approved in August 2006.2 The goal of the test was to measure the emissions control performance of the CCD15010 fuel formulation with HiTEC4121 additive and its emissions reduction relative to the same engine using ULSD fuel. A description of the FUR fuel formulation is presented in Section 2. Section 3 documents the procedures and methods used for the test and the conditions under which the test was conducted. The results of the test are summarized and discussed in Section 4, and references are presented in Section 5. This report contains only summary data and the verification statement. Complete documentation of the test results is provided in a separate test report3 and audit of data quality report4. These reports include the raw test data from product testing and supplemental testing, equipment calibration results, and QA and quality control (QC) activities and results. Complete documentation of QA/QC activities and results, raw test data, and equipment calibration results are retained in SwRI's files for 7 years. This verification statement describes the performance of the tested technology, CCD15010 diesel fuel formulation with HiTEC4121 additive, on the tested diesel engine. Testing was conducted in October 2006 at SWRI. RTI International is a trade name of Research Triangle Institute. ------- Section 2.0 Product Description The FHR CCD15010 diesel fuel formulation has an aromatic content below the nationwide average diesel fuel. It contains the H1TEC4121 additive with cetane-improving components. Emissions were quantified with two separate diesel fuels, a baseline fuel and a candidate fuel. FHR palletized approximately 200 gallons of both fuels for transport to SwRI in sealed 55-gallon drums. As shown in Figure 1, drums of baseline fuel were labeled "NatAvBaseline" (coded by SwRI as EM-6049-F), and drums of candidate fuel were labeled "CCD15010" (coded by SwRI as EM-6048-F). SwRI extracted a one-gallon sample of the baseline and candidate fuels for chemical analyses. The composition and properties of the CCD15010 fuel and the composition and concentration of the HiTEC4121 additive in the fuel are proprietary and will be provided to the EPA National Clean Diesel Campaign (NCDC) and to the Texas Council on Environmental Quality (TCEQ) as confidential business information. The properties of the baseline fuel are given in Table 1. Figure 1. Sealed drums of Flint Hills Resources diesel fuels ------- Table 1. Selected Fuel Properties and Specifications Cetane number Cetane index Distillation range: Initial boiling point, °C (°F) 10% Point, °C(°F) 50% Point, °C (°F) 90% Point, °C (°F) End point, °C (°F) Gravity (American Petroleum Institute) Specific gravity Total sulfur, ppm Hydrocarbon composition: Aromatics (minimum), % Paraffins, naphthenes, and olefins, % Flash point (minimum), °C (°F) Viscosity, centistokes at 40 °C Code of Federal Regulations (CFR) Specification3 ASTM D613 D976 D86 D86 D86 D86 D86 D287 — D2622 D5186 D5186 D93 D445 Type 2D 40-50 40-50 171-204(340-400) 204-238 (400-460) 243-282 (470-540) 293-332 (560-630) 321-366(610-690) 32-37 — 7-15 27 e 54(130) 2.0-3.2 Test Fuel EM-6049-F (baseline) 45.1 b 194(382) 215(419) 256 (492) 316(601) 352 (666) b 0.8542 c 5.1d 36.4 b b 40 CFR 86.1313-2007(b)(2) for the year 2007 and beyond for heavy-duty diesel engines. Not tested Measured per ASTM D1298. Measured per ASTM D7039. This method is an acceptable substitute for ASTM D2622. Remainder of the hydrocarbons ------- Section 3.0 Test Documentation The ETV testing took place during October 2006 at SwRI under contract to the APCT Center. Testing was performed in accordance with: • Generic Verification Protocol for Determination of Emissions Reductions Obtained by Use of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Diesel Engines and Light Duty Gasoline Engines and Vehicles1 • Test/QA Plan for the Verification Testing of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Heavy Duty Diesel Engines and Light Duty Gasoline Engines and Vehicles5 • Test-Specific Addendum to ETV Mobile Source Test/QA Plan for Flint Hills Resources for the CCD15010 Diesel Fuel Formulation2 The applicant reviewed the generic verification protocol and had an opportunity to review the test/QA plan prior to testing. 3.1 Engine Description The ETV testing was performed on an inline six-cylinder, 12.7 L, 1991 model year, Detroit Diesel Corporation (DDC) Series 60 highway heavy-duty diesel engine (model 6067GU60, SN: 06RE001123). The rating of this model engine is 272 kW (365 bhp) in "prime" power service at 1800 rpm. The engine was owned by SwRI and has been used in a number of test programs at SwRI. Table 2 provides the engine identification details. The engine belongs to on-highway engine family box OH-4 as categorized by EPA. Table 2. Engine Identification Information Engine serial number Make Model year Model Engine displacement and configuration Service class EPA engine family identification Certification standards (g/hp-hr) Rated power Rated torque Certified emission control system Aspiration Fuel system 06RE001123 Detroit Diesel Corp. (DDC) 1991 Series 60, 6067GU60 12.7 L, six-cylinder Highway heavy-duty diesel engine (HDDE) MDD12.7FZAK HC 1.30/CO 15.50/NOx5.00/PM 0.250 365 bhp@ 1800 rpm 1 400 lb-ft@ 1200 rpm Detroit Diesel electronic control (DDEC)-II Turbocharger and laboratory charge air cooler Direct injection ------- 3.2 Engine Fuel Description All baseline emissions testing was conducted with ULSD fuel meeting the 40 CFR §86.1313- 2007 specification for emissions certified fuel.6 Baseline testing was conducted using fuel from a single batch identified as EM-6049-F. All candidate emissions testing was conducted with FHR CCD15010 diesel fuel formulation, containing the HiTEC4121 additive, from a single batch identified as EM-6048-F. In accordance with SwRI standard operating procedures, each fuel change included thoroughly flushing fuel lines, heat exchangers, and the day tank. To fully purge the engine, the Series 60 was run with its return-fuel diverted into a slop container as new fuel was supplied. After the previous fuel was fully purged and the engine was running on the selected fuel, a set of fresh fuel filters was installed and the return-fuel was routed into the day tank. Each fuel change effort consumed approximately 16 gallons of diesel fuel. 3.3 Summary of Emissions Measurement Procedures The ETV tests consisted of baseline tests with ULSD fuel and candidate tests with the fuel formulation. Engine operation and emissions sampling adhered to techniques developed by EPA in 40 CFR, Part 86, Subpart N.7 Emissions were measured over triplicate runs of the highway transient test cycle and the supplemental emissions test (SET) for the baseline and candidate exhaust configurations. Baseline testing is conducted at the beginning and end of the verification series, and the complete test sequence is repeated for the candidate fuel, as shown in Table 3. Table 3. Overview of Verification Test Sequence Description Baseline 1 Candidate 1 Candidate 2 Baseline 2 Fuel EM-6049-F a EM-6048-F b EM-6048-F EM-6049-F Engine 1991 DDC Series 60 HDDE 1991 DDC Series 60 HDDE 1991 DDC Series 60 HDDE 1991 DDC Series 60 HDDE Test Sequence Cold + 3 hots + SET Cold + 3 hots + SET Cold + 3 hots + SET Cold + 3 hots + SET FHR fuel identified as "NatAvBaseline" conforming to 40 CFR §86.1313-2007 b CCD15010 fuel formulation with HITEC4121 additive The DDC Series 60 engine was operated in an engine dynamometer test cell, with exhaust sampled using full-flow dilution constant volume sampling (CVS) techniques to measure regulated emissions of hydrocarbon (HC), carbon monoxide (CO), nitrogen oxides (NOX), and particulate matter (PM), as well as carbon dioxide (CO2). In addition to results presented in this report, raw data were gathered at the rate of one series of measurements per second over each test to record the engine speed, torque value, concentration of selected emissions, exhaust temperature, and various pressures. Figure 2 depicts the sampling system and related components. The system is designed to comply with the requirements of 40 CFR, Part 86.7 ------- HC Analyzer NOx fn alyzer Poat^e Displacement Rjrnp (PCP) Figure 2. Schematic of emissions sampling system at SwRI. The verification protocol requires that engines used for verification testing must not exceed 110% of the certification standards for emissions from that engine category.8 For 1991-1992 highway engines, the certification standards are defined in EPA's on-highway engine family box OH-49. Furthermore, the Office of Transportation and Air Quality (OTAQ) assumes 5% reduction in PM emissions due to the use of ULSD fuel. Therefore, the criteria established to indicate that the test engine was acceptable and that the verification testing could proceed were that the baseline emissions from the engine using ULSD fuel could not exceed 110% of OH-4 (1.1 x OH-4) for HC, CO, and NOX, and also could not exceed 110% of [(OH-4)-5%], or (1.045 x OH-4) for PM. Table 4 presents the required emission performance of the test engine, as well as the certification standards and baseline results for comparison. Table 4. Test Engine Baseline Emissions Requirement for 1991 DDC Series 60 OH-4 Acceptance criteria Baseline results H g/kWh 1.74 1.92 0.07 C g/hp-hr 1.30a 1.43 0.05 C g/kWh 20.79 22.86 3.67 0 g/hp-hr 15.50a 17.05 2.74 INK g/kWh 6.71 7.38 6.91 3x g/hp-hr 5.00a 5.50 5.15 P g/kWh 0.335 0.350 0.240 M g/hp-hr 0.250a 0.261 0.179 40 CFR §86.091-11, Certification standards for EPA engine family box OH4 for 1991-1992 highway engines ------- 3.4 Deviations from the Test/QA Plan There was one deviation from the test/QA plan. Following the initial baseline testing, an erratic NOx signal was noted on several subsequent tests. These tests were voided and not included in the results. Diagnostic tests indicated that the NOx pump's motor-to-pump coupling had allowed the pump to turn, usually without interruption, but occasionally slipped, producing intermittent flow losses that resulted in an erratic analyzer response. The coupling was replaced and testing resumed without incident after a stable NOx signal was achieved. 3.5 Documented Test Conditions Engine Performance Figure 3 shows torque map information measured on the DDC Series 60 engine using the ULSD fuel. Ib-ft - - - -hp 1600 400 500 750 0 1000 1250 1500 1750 2000 Engine Speed, rpm Figure 3. Torque map of 1991 DDC Series 60 engine using ULSD baseline fuel. Engine Exhaust Backpressure The engine backpressure for the 1991 DDC Series 60 engine was set in accordance with the engine manufacturer specifications before the first baseline test. Maximum backpressure observed during testing did not exceed the manufacturer's specifications. ------- Brake Specific Fuel Consumption The fuel consumption was not measured explicitly during the engine testing. Rather, a calculated "carbon-balance" (C-B) fuel consumption rate was determined based on the measured exhaust flow rate and the carbon content (i.e., the CO and the CO2) in the exhaust gas analysis. The weighted brake-specific fuel consumption (BSFC) calculations are similar to the weighted emissions calculations explained in Section 4.0. Tables 5 and 6 show the weighted BSFC calculations for the highway Federal Test Procedure (FTP) and SET. Table 7 summarizes the results of these calculations and compares the fuel consumption during the baseline ULSD runs with that measured during the candidate CCD15010 tests. (The weighting for BSFC in Table 7 is the same as that for the combined emissions rates in Tables 11 and 12. A more detailed explanation is given in Section 4.) Table 5. Brake-Specific Fuel Consumption (by Carbon Balance) for Highway FTP Tests Test Number Test Type Test Date BSFC Ib/bhp-hr kg/kWh Weighted BSFC Ib/bhp-hr | kg/kWh BASELINE 1 FHR49-C2 FHR49-H4 Cold-start Hot-start 10/18/2006 10/18/2006 0.408 0.390 0.248 0.237 0.393 0.239 FHR49-H5 Hot-start 10/18/2006 0.404 0.246 0.405 0.246 FHR49-H6 Hot-start 10/18/2006 0.391 0.238 0.394 0.239 CANDIDATE 1 FHR48-C6 FHR48-H19 Cold-start Hot-start 10/25/2006 10/25/2006 0.399 0.383 0.243 0.233 0.385 0.234 FHR48-H20 Hot-start 10/25/2006 0.380 0.231 0.383 0.233 FHR48-H21 Hot-start 10/25/2006 0.377 0.229 0.380 0.231 CANDIDATE 2 FHR48-C7 Cold-start 10/26/2006 0.424 0.258 FHR48-H22 Hot-start 10/26/2006 0.385 0.234 0.391 0.237 FHR48-H23 Hot-start 10/26/2006 0.384 0.233 0.389 0.237 FHR48-H24 Hot-start 10/26/2006 0.382 0.232 0.388 0.236 BASELINE 2 FHR49-C3 FHR49-H7 Cold-start Hot-start 10/27/2006 10/27/2006 0.405 0.384 0.246 0.233 0.387 0.235 FHR49-H8 Hot-start 10/27/2006 0.381 0.232 0.385 0.234 FHR49-H9 Hot-start 10/27/2006 0.381 0.232 0.385 0.234 ------- Table 6. Brake-Specific Fuel Consumption (by Carbon Balance) for SET Tests Test Number FHR49-SET-4 FHR48-SET-4 FHR48-SET-6 FHR49-SET-5 Test Type Baseline 1 Candidate 1 Candidate 2 Baseline 2 Weighted BSFC Ib/bhp-hr 0.334 0.324 0.320 0.332 kg/kWh 0.203 0.197 0.195 0.202 Table 7. Summary of Fuel Consumption Reduction Combined weighted BSFC Ib/bhp-hr kg/kWh BASELINE B1 B2 B3 B4 B5 B6 MEAN 0.384 0.394 0.385 0.379 0.377 0.377 0.383 0.233 0.240 0.234 0.230 0.229 0.229 0.233 CANDIDATE C1 C2 C3 C4 C5 C6 MEAN 0.376 0.374 0.372 0.380 0.379 0.378 0.377 0.229 0.227 0.226 0.231 0.230 0.230 0.229 % Reduction 95% Confidence Limits 1.58 1.58 to 1.59 ------- Section 4.0 Summary and Discussion of Emission Results Table 8 reports the emissions from cold- and hot-start tests that were conducted with the baseline and candidate fuels. The concentration measurements were converted to units of total grams per test for all species. Table 8. Emissions Data from Highway Transient Tests Test Number Test Type PM NOX HC CO g CO2 kg Work kWh (bhp-hr) BASELINE ULSD Fuel on a 1991 DDC Series 60 Engine FHR49-C2 FHR49-H4 FHR49-H5 FHR49-H6 Cold-start Hot-start Hot-start Hot-start 4.46 4.49 4.40 4.45 145 121 123 122 2.03 1.32 1.38 1.12 82.4 67.2 67.3 67.4 14.4 13.6 14.1 13.7 18.4(24.7) 18.2(24.4) 18.2(24.4) 18.2(24.4) CANDIDATE CCD15010 Fuel and HITEC4121 Additive on a 1991 DDC Series 60 Engine FHR48-C6 FHR48-H19 FHR48-H20 FHR48-H21 Cold-start Hot-start Hot-start Hot-start 4.39 4.32 4.33 4.46 130 112 110 111 1.12 0.875 0.778 0.805 70.1 56.7 56.5 57.3 14.1 13.4 13.3 13.2 18.4(24.7) 18.2(24.4) 18.2(24.4) 18.2(24.4) CANDIDATE CCD15010 Fuel and HITEC4121 Additive on a 1991 DDC Series 60 Engine FHR48-C7 FHR48-H22 FHR48-H23 FHR48-H24 Cold-start Hot-start Hot-start Hot-start 4.34 4.54 4.64 4.59 132 111 111 114 1.34 1.37 0.892 1.11 68.7 60.1 61.0 59.4 15.0 13.4 13.4 13.4 18.4(24.7) 18.2(24.4) 18.2(24.4) 18.2(24.4) BASELINE ULSD Fuel on a 1991 DDC Series 60 Engine FHR49-C3 FHR49-H7 FHR49-H8 FHR49-H9 Cold-start Hot-start Hot-start Hot-start 4.40 4.23 4.35 4.30 146 125 122 122 1.37 1.07 0.919 0.982 77.8 62.9 62.6 62.0 14.3 13.4 13.3 13.4 18.5(24.8) 18.2(24.4) 18.2(24.4) 18.2(24.4) Tables 9 and 10 report the emissions from the 13-mode steady-state SET tests that were conducted with the baseline and candidate fuels. The concentration measurements were converted to units of grams per hour for all species. The "bhp from Work" (the integrated measured power during each test period) values are also shown in these tables. 10 ------- Table 9. Emissions Data from Baseline Supplemental Emissions Tests (SET) Test Number FHR49-SET-4 FHR49-SET-5 Mode 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 Target % (idle) 100 50 75 50 75 25 100 25 100 25 75 50 (idle) 100 50 75 50 75 25 100 25 100 25 75 50 Weighting Factor 0.15 0.08 0.10 0.10 0.05 0.05 0.05 0.09 0.10 0.08 0.05 0.05 0.05 0.15 0.08 0.10 0.10 0.05 0.05 0.05 0.09 0.10 0.08 0.05 0.05 0.05 PMa NOx HC CO g 5.24 5.39 3.28 41.1 47.7 56.2 19.7 23.3 12.9 59.4 30.7 57.9 16.8 31.2 25.7 3.08 40.9 47.2 56.3 19.7 25.1 12.9 58.8 30.6 57.9 16.6 30.9 25.6 0.113 0.163 0.130 0.138 0.0577 0.0777 0.0794 0.230 0.172 0.171 0.105 0.0871 0.0839 0.0723 0.150 0.0795 0.102 0.0374 0.0729 0.0581 0.163 0.131 0.120 0.0780 0.0638 0.0620 1.20 47.1 2.28 10.4 1.45 12.7 0.734 25.6 1.77 9.36 1.18 2.19 0.892 1.08 46.1 2.14 9.67 1.46 12.6 0.732 23.4 1.78 8.89 1.13 2.02 0.867 CO2 kg 0.210 3.17 2.33 3.39 1.01 1.52 0.564 4.04 1.31 3.73 0.711 1.72 1.22 0.230 3.14 2.29 3.38 1.02 1.63 0.567 4.01 1.31 3.71 0.710 1.74 1.22 Work kWh (bhp-hr) 0.0218(0.0292) 5.02 (6.73) 3.67 (4.92) 5.49 (7.36) 1.58(2.12) 2.38(3.19) 0.798(1.07) 6.56(8.80) 1.83(2.45) 6.03(8.08) 0.947(1.27) 2.83(3.79) 1.88(2.52) 0.0218(0.0292) 5.03 (6.74) 3.66(4.91) 5.48(7.35) 1.58(2.12) 2.61 (3.50) 0.798(1.07) 6.55(8.79) 1.81 (2.43) 6.05(8.11) 0.947(1.27) 2.82(3.78) 1.88(2.52) PM is not reported mode-by-mode. 11 ------- Table 10. Emissions Data from Candidate Supplemental Emissions Tests (SET) Test Number FHR48-SET-4 FHR48-SET-6 Mode 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 Target % (idle) 100 50 75 50 75 25 100 25 100 25 75 50 (idle) 100 50 75 50 75 25 100 25 100 25 75 50 Weighting Factor 0.15 0.08 0.10 0.10 0.05 0.05 0.05 0.09 0.10 0.08 0.05 0.05 0.05 0.15 0.08 0.10 0.10 0.05 0.05 0.05 0.09 0.10 0.08 0.05 0.05 0.05 PMa NOx HC CO g 4.41 4.97 3.26 40.2 43.7 54.9 18.8 22.5 11.4 58.9 26.6 57.5 14.3 30.5 23.8 3.06 39.2 44.1 54.2 18.4 22.0 11.0 57.6 26.3 59.3 14.3 30.0 23.6 0.0808 0.147 0.0912 0.133 0.0569 0.0822 0.0482 0.187 0.117 0.162 0.0787 0.0788 0.0696 0.00 0.107 0.0533 0.0733 0.0164 0.0447 0.0202 0.161 0.0588 0.111 0.0560 0.0553 0.0438 0.959 46.6 2.12 9.19 1.38 11.2 0.675 23.1 1.56 7.97 0.953 1.92 0.858 0.652 45.4 2.16 10.0 1.39 12.2 0.570 24.9 1.36 9.22 0.853 2.02 0.783 CO2 kg 0.214 3.06 2.24 3.32 0.995 1.47 0.557 3.95 1.27 3.60 0.670 1.71 1.18 0.191 3.03 2.24 3.28 0.977 1.45 0.529 3.89 1.26 3.75 0.668 1.68 1.17 Work kWh (bhp-hr) 0.0224(0.0301) 5.00(6.71) 3.66(4.91) 5.50(7.37) 1.59(2.13) 2.39(3.21) 0.805(1.08) 6.57(8.81) 1.84(2.47) 6.00(8.04) 0.932(1.25) 2.82(3.78) 1.88(2.52) 0.0312(0.0418) 4.99 (6.69) 3.65 (4.89) 5.50(7.37) 1.58(2.12) 2.39(3.20) 0.790(1.06) 6.56(8.80) 1.84(2.47) 6.33(8.49) 0.940(1.26) 2.83(3.79) 1.89(2.54) PM is not reported mode-by-mode. For each cold/hot-start test combination, the composite-weighted transient emission rate for each pollutant was then calculated following the fractional calculation for highway engines as follows: — • EcOLD ~\ • \EiHOT )m 7 1 C^-1) 1 ,,, 6 — • WCOLD -\ 7 7 where ECOMP = composite-weighted transient emissions rate, g/bhp-hr m = one, two, or three hot-start tests ECOLD = cold-start mass emissions level, g EHOT = hot-start mass emissions level, g WCOLD = cold-start brake horsepower hour, bhp-hr WHOT = hot-start brake horsepower hour, bhp-hr. 12 ------- For the SET, the emission rate for each pollutant was calculated by applying a weighting factor, specified in 40 CFR 86.136010, to the emission rate and work measured at each mode as follows: (Eq. 2) / , Ji * "MODEt i=\ where ESET = emissions rate for SET, g/bhp-hr / = mode weighting factor from 40 CFR 86.1360 EMODEJ = pollutant emissions rate during mode /', g WMODEI = brake horsepower hour during mode /', bhp-hr. The composite-weighted highway transient emission rate for each pollutant, ECOMP, was then combined with a single SET emission rate as follows to obtain the combined emission rate, Et, for each pollutant for each of the n tests at the test point: Et = 0.85*EcoMp, + 0.15'EsET (Eq. 3) where Et = combined emission rate, g/bhp-hr ECOMP = composite-weighted transient emissions rate, g/bhp-hr ESET = emission rate for supplemental emissions test / = 1 to n tests required at test point These combined emissions rates are shown in Tables 11 and 12 and were used to calculate the mean and standard deviations for the baseline and controlled emissions rates. These data were in turn used to calculate mean emissions reductions and 95% confidence limits. These calculations are based on the generic verification protocol1 and test/QA plan.2 Equations 4-15 show how the data from Tables 8, 9, and 10, identified by test number, were weighted to provide the combined emissions rates. Bl = (0.85)[(1/7)(FHR49-C2) + (6/7)(FHR49-H4)] + (0.15)(FHR49-SET-4) (Eq. 4) B2 = (0.85)[(1/7)(FHR49-C2) + (6/7)(FHR49-H5)] + (0.15)(FHR49-SET-4) (Eq. 5) B3 = (0.85)[(1/7)(FHR49-C2) + (6/7)(FHR49-H6)] + (0.15)(FHR49-SET-4) (Eq. 6) B4 = (0.85)[(1/7)(FHR49-C3) + (6/7)(FHR49-H7)] + (0.15)(FHR49-SET-5) (Eq. 7) B5 = (0.85)[(1/7)(FHR49-C3) + (6/7)(FHR49-H8)] + (0.15)(FHR49-SET-5) (Eq. 8) B6 = (0.85)[(1/7)(FHR49-C3) + (6/7)(FHR49-H9)] + (0.15)(FHR49-SET-5) (Eq. 9) Cl = (0.85)[(1/7)(FHR48-C6) + (6/7)(FHR48-H19)] + (0.15)(FHR48-SET-4) (Eq. 10) C2 = (0.85)[(1/7)(FHR48-C6) + (6/7)(FHR48-H20)] + (0.15)(FHR48-SET-4) (Eq. 11) C3 = (0.85)[(1/7)(FHR48-C6) + (6/7)(FHR48-H21)] + (0.15)(FHR48-SET-4) (Eq. 12) C4 = (0.85)[(1/7)(FHR48-C7) + (6/7)(FHR48-H22)] + (0.15)(FHR48-SET-6) (Eq. 13) C5 = (0.85)[(1/7)(FHR48-C7) + (6/7)(FHR48-H23)] + (0.15)(FHR48-SET-6) (Eq. 14) C6 = (0.85)[(1/7)(FHR48-C7) + (6/7)(FHR48-H24)] + (0.15)(FHR48-SET-6) (Eq. 15) 13 ------- Table 11. Combined Emission Rates (U.S. Common Units) Combined Emissions Rate PM NOx HC CO CO2 g/bhp-hr BASELINE ULSD Fuel on a 1991 DDC Series 60 Engine B1 B2 B3 B4 B5 B6 0.171 0.169 0.170 0.163 0.167 0.165 5.56 5.62 5.58 5.66 5.57 5.58 0.0542 0.0559 0.0481 0.0419 0.0376 0.0394 2.75 2.75 2.76 2.58 2.57 2.55 550 564 551 543 540 540 CANDIDATE CCD15010 Fuel with HiTEC4121 Additive on a 1991 DDC Series 60 Engine C1 C2 C3 C4 C5 C6 0.163 0.164 0.167 0.171 0.174 0.173 5.16 5.10 5.10 5.13 5.12 5.20 0.0354 0.0326 0.0333 0.0498 0.0355 0.0419 2.35 2.35 2.36 2.46 2.48 2.43 539 536 533 544 543 542 Table 12. Combined Emission Rates (Metric Units) Combined Emissions Rate PM NOx HC CO CO2 g/kW-hr BASELINE ULSD Fuel on a 1991 DDC Series 60 Engine B1 B2 B3 B4 B5 B6 0.229 0.227 0.228 0.219 0.224 0.221 7.46 7.54 7.48 7.59 7.47 7.48 0.0727 0.0750 0.0645 0.0562 0.0504 0.0528 3.69 3.69 3.70 3.46 3.45 3.42 738 756 739 728 724 724 CANDIDATE CCD15010 Fuel with HiTEC4121 Additive on a 1991 DDC Series 60 Engine C1 C2 C3 C4 C5 C6 0.219 0.220 0.224 0.229 0.233 0.232 6.92 6.84 6.84 6.88 6.87 6.97 0.0475 0.0437 0.0447 0.0668 0.0476 0.0562 3.15 3.15 3.16 3.30 3.33 3.26 723 719 715 730 728 727 The combined emission rates from Tables 11 and 12 are the key values for the verification test. Tables 13 and 14 summarize that information. The first line shows the baseline engine results; the emissions in all categories are below the Table 3 threshold. Table 13. Summary of Verification Test Data (U.S. Common Units) Test Type BASELINE CANDIDATE Fuel ULSD CCD15010+HITEC4121 Mean Composite Weighted Emission Value PM NOx HC CO C02 g/bhp-hr 0.179 0.183 5.15 4.68 0.0496 0.0412 2.74 2.46 561 553 14 ------- Table 14. Summary of Verification Test Data (Metric Units) Test Type BASELINE CANDIDATE Fuel ULSD CCD15010+HITEC4121 Mean Composite Weighted Emission Value PM NOx HC CO C02 g/kW-hr 0.240 0.245 6.91 6.28 0.0665 0.0553 3.67 3.30 752 742 Table 15 summarizes the emissions reductions that were achieved by the use of the CCD15010 fuel formulation with H1TEC4121 additive. These are the "verified emissions reductions" reported in Table 2 of the ETV Joint Verification Statement. Table 15. Summary of Verification Test Emission Reductions Technology CCD15010+HITEC4121 Mean Emissions Reduction (%) PM -0.74 a NOx 8.2 HC 17 CO 9.6 95% Confidence Limits on the Emissions Reduction (%) PM _ b NOx 7.3 to 9.0 HC _ b CO 5.3 to 14 Negative reduction indicates increase in emissions. b The emissions reduction can not be distinguished from zero with 95% confidence. 4.1 Quality Assurance The environmental technology verification of the CCD15010 fuel formulation with H1TEC4121 additive for highway heavy-duty diesel engines was performed in accordance with the approved test/QA plan and the test-specific addendum.2 An audit of data quality included the review of equipment, personnel qualifications, procedures, record keeping, data validation, analysis, and reporting. Preliminary, in-process, and final inspections, and a review of 10% of the data showed that the requirements stipulated in the test/QA plan5 were achieved. The SwRI, APCT Center, and EPA quality managers reviewed the test results and the QC data and concluded that the data quality objectives given in the generic verification protocol were attained. EPA and RTI QA staff conducted audits of SwRI's technical and quality systems in April 2002 and found no deficiencies that would adversely impact the quality of results. The equipment was appropriate for the verification testing, and it was operating satisfactorily. SwRI's technical staff was well qualified to perform the testing and conducted themselves in a professional manner. 15 ------- Section 5.0 References 1. RTI International. 2003. Generic Verification Protocol for Determination of Emissions Reductions Obtained by Use of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Diesel Engines and Light Duty Gasoline Engines and Vehicles. Research Triangle Park, NC, September. Available: http://www.epa.gov/etv/pdfs/vp/05_vp_fuel.pdf 2. RTI International. 2006. Test-Specific Addendum to ETV Mobile Source Test/QA Plan for Flint Hills Resources for the CCD15010 Diesel Fuel Formulation. Research Triangle Park, NC, September 22. 3. Southwest Research Institute. 2006. Environmental Technology Verification of Diesel Fuel Formulation FHR-CCD15010. Final Report. San Antonio, TX, December. 4. Southwest Research Institute. 2006. Audit of Data Quality for Environmental Technology Verification of Diesel Fuel Formulation FHR-CCD15010. San Antonio, TX, December. 5. RTI International. 2006. Test/QA Plan for the Verification Testing of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, and Lubricants for Highway andNonroad Use Heavy Duty Diesel Engines and Light Duty Gasoline Engines and Vehicles. Research Triangle Park, NC, September. Available: http://www.epa.gov/etv/pdfs/vp/05_tp_diesel.pdf. 6. 40 CFR §86.1313-2007 (Protection of Environment: Control of Emissions from New and In-Use Highway Vehicles and Engines, Fuel Specifications), Table N07-2. Available: http://www.epa.gov/epahome/cfr40.htm (updated September 6, 2006). 7. 40 CFR, Part 86 (Protection of Environment: Control of Emissions from New and In-Use Highway Vehicles and Engines), Subpart N. 8. RTI International. 2003. Generic Verification Protocol for Determination of Emissions Reductions from Selective Catalytic Reduction Control Technologies for Highway, Nonroad, and Stationary Use Diesel Engines. Research Triangle Park, NC, September. Available: http://www.epa.gov/etv/pdfs/vp/05_vp_emissions.pdf. 9. 40 CFR §86.091-11 (Protection of Environment: Control of Emissions from New and In- Use Highway Vehicles and Engines, Emission standards for 1991 and later model year diesel heavy-duty engines). Available: http://www.epa.gov/epahome/cfr40.htm (updated June 26, 2006). 10. 40 CFR §86.1360-2007 (Protection of Environment: Control of Emissions from New and In-Use Highway Vehicles and Engines, Supplemental emission test; test cycle and procedures). Available: http://www.epa.gov/epahome/cfr40.htm (updated June 26, 2006). 16 ------- |