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The Cold Performance of Diesel Engines
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Abstract
This paper describes a test program where up to eighteen diesel fuels of varying qualities were tested for cold performance in sixteen commercial diesel engines. In this study, cold performance was defined as the time to start, intensity and time of white smoke emissions after the cold start and engine knock, if present, after the cold start. Initial tests were run at -20°C with starting aids (such as block heat and/or ether use) and at -5°C with no starting aids. Subsequent tests were only run under the latter conditions, as this was found to be more discriminating regarding fuel quality effects.
The diesel engines were chosen to represent the diversity of engine design in North America, Europe and the Far East. Both Direct and In-Direct Injection engines were tested as were naturally aspirated and turbocharged engines. Engine build dates varied from 1980 to 1989. This range covers most of the current diesel powered fleet in North America. The fuel matrix tested was sourced to cover the general range of commercial fuels in North America in terms of cetane number, volatility and viscosity. Ignition improver was included in a number of the fuels.
Results of the test program showed that engine type and calibration was the major factor controlling cold performance. The most important fuel parameters influencing cold performance were, in order, cetane number and volatility. The use of an ignition improver to increase a fuel's cetane number, was found to be comparable to naturally derived cetane at the levels of cetane number boost examined.
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Citation
Mitchell, K., "The Cold Performance of Diesel Engines," SAE Technical Paper 932768, 1993, https://doi.org/10.4271/932768.Also In
Diesel Fuels for the Nineties: Composition and Additives to Meet Emissions and Performance Needs
Number: SP-0994; Published: 1993-10-01
Number: SP-0994; Published: 1993-10-01
References
- Steere D.E. Nunn T.J. ‘Diesel Fuel Quality Trends in Canada” SAE Paper 790922 1979
- Collins J.M. Unzelman G.H. “Alternatives for Meeting Cetane Quality in the Next Decade” API 48th Mid-Year Refining Meeting 1983
- Barry E.G. Hills F.J. McCabe L.J. “Diesel Fuel - Availability, Trends and Performance” SAE Paper 790921 1979
- Whyte R.B. Gardner L. “Update on Canadian Diesel Fuel Trends” SAE Paper 841403 1984
- Dickson C.L. “Diesel Fuel Oils, 1992” 1992
- Alberta Research Council “Automotive Diesel Fuel Characteristics Canadian Summer Survey 1992” 1992
- Alberta Research Council “Automotive Diesel Fuel Characteristics Canadian Winter Survey 1992” 1992
- American Society for Testing and Materials “D 975-92a Standard Specification for Diesel Fuel Oils” 1992
- Canadian General Standards Board “CAN CGSB-3.6-M90 Automotive Diesel Fuel” 1990
- Statistical Analysis Systems SAS Circle Carey, N.C.
- Taracha J.W. Cliffe J.O. “The Effects of Cetane Quality on the Performance of Diesel Engines” SAE Paper 821232 1982
- Weidmann K. et al “Diesel Fuel Quality Effects on Exhaust Emissions” SAE Paper 881649 1988
- Kagami M. et al “The Influence of Fuel Properties on the Performance of Japanese Automotive Diesels” SAE Paper 841082 1982
- Golothan D.W. “Diesel Engine Exhaust Smoke: The Influence of Fuel Properties and the Effects of Using Barium Containing Fuel Additives” SAE Paper 670092 1967
- Zahdeh A.K. Henein N. “Diesel Engine Cold Starting: White Smoke” SAE Paper 920032 1992
- Bickerton R.A. et al “The Development of a Method for Evaluating the Effect of Fuel Quality on the Cold Starting of a Range of Diesel Engines” SAE Paper 921748 1992
- Gulder O.L. Glavincevski B. Burton G.F. “Ignition Quality Rating Methods for Diesel Fuels - A Critical Appraisal” SAE Paper 852080 1985
- Wong C.L. Gilbert LB. Investigation of the Performance of a Heavy Duty Diesel Truck Engine Operating on Low Cetane Diesel Fuel” SAE Paper 881647 1988
- Cartwright S.J. Gilbert J.B. “Investigation of the Low Temperature Performance of Trucks Operating on Low Cetane Diesel Fuel” SAE Paper 881648 1988
- Wilson G.C Desmond E.A. “The Development and Utilization of Amyl Nitrate as an Ignition Improver for Diesel Fuels” Presented at the Western Petroleum Refiners Association Annual Meeting March 29-31 1954
- Olree R.M. Lenane D.L. “Diesel Combustion Cetane Number Effects” SAE Paper 840108 1.984
- Clerc J.C. “Cetane Number Requirements of Light-Duty Diesel Engines at Low Temperatures” SAE Paper 861525 1986