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A Modified Cetane Scale for Low Ignition Quality Fuels
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Abstract
A detailed analysis has been made on the Cetane Scale presently used to rate the autoignition quality of fuels. The effect of the increase in temperature and pressure, as a result of increasing the compression ratio, on the ignition delay has been theoretically and experimentally analyzed. It has been found that the ignition delay is more sensitive to air temperature than air pressure. The sensitivity increases with the drop in the cetane number of the fuel. Many techniques have been examined to modify the present cetane scale. A modified scale has been developed by raising the inlet temperature from 150°F to 350°F without changing the rest of the rating technique. The modified scale is very effective in extending the scale to zero cetane number and is able to rate the low ignition quality fuels.
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Citation
Henein, N. and Elias, N., "A Modified Cetane Scale for Low Ignition Quality Fuels," SAE Technical Paper 780640, 1978, https://doi.org/10.4271/780640.Also In
References
- Hesselman, Z. 1923
- Lemesurier L. J. Stansfield R. J. Inst. Petroleum Tech. 17 387 1931
- Boerlage G. D. Broeze J. J. Engineering 132 603 6 687 9 755 6 1931
- Pope, A. W. Jr. Murdock J. A. S.A.E. Journal 30 136 1932
- Boerlage G. D. Broeze J. J. Journal S.A.E. 31 283 1932
- Boerlage G. D. Broeze J. J. “Kock Rating for High-Speed Compression Ignition Engine Fuels.” Paper 111 World Petroleum Congress London 1933
- Rendel T. B. Proceedings of the Eighth Oil Power Conference Pennsylvania State College Tech. 20 93 1934
- Schweitzer P. H. Dickinson H. A. Reed M. J. “Status of Diesel Fuel Oil Standardization in the United States.” Paper 78 World Petroleum Congress London 1933
- Hetzel T. B. Schweitzer P. H. Automotive Ind. 73 202 1935
- American Society for Testing Materials Minutes of the Meeting of the Coordinating Subcommittee on Diesel Fuel (a subcommittee of Technical Committee C of D-2) White Sulphur Springs June 19 1935
- Schweitzer P. H. “Methods of Rating Diesel Fuels.” School of Engineering The Pennsylvania State College 1937
- ASTM Manual for Rating Diesel Fuels 1963
- Olson D. R. Meckel N. T. Quillian, R. D. Jr. “Combustion Characteristics of Compression Ignition Engine Fuel Components.” S.A.E. National Fuels and Lubricants Meeting Tulsa, Oklahoma November 1960
- Olson D. R. Meckel N. T. Quillian, R. D. Jr. “The Operation of Compression-Ignition Engine on Wide Boiling Range Fuels.” S.A.E. National Fuels and Lubricants Meeting Houston, Texas November 8-10 1961
- “Low Cetane Number Determinations.” U.S. Army Fuels and Lubricants Research Laboratory San Antonio, Texas June 1965
- Urban C. M. Gray J. T. “An Investigation of Methods for Determining Cetane Numbers of Low Ignition Quality Fuels.” S.A.E. mid-year meeting Detroit, Michigan May 20-24 1968
- Bowden J. N. Johnston A. A. Russell J. A. “Octane-Cetane Relationship.” Final report AFLRL No. 33 U.S. Army Fuels and Lubricants Research Laboratory - Southwest Research Institute San Antonio, Texas March 1974
- 1969
- Becker K. Umweltbundesamt, West Germany “The Influence of an Ignition Accelerator on the Ignition Quality and AntiKnock Properties of Light Hydrocarbons in the Diesel Engine.” S.A.E. Paper 760163 1976
- Henein N. A. Bolt J. A. “Kinetic Considerations in the Autoignition and Combustion of Fuel Sprays in Swirling Air.” Transactions CIMAC 9th International Congress on Combustion Engines Stockholm, Sweden 1 36 1971 1972
- Henein N. A. Bolt J. A. “Correlation of Air Charge Temperature and Ignition Delay for Several Fuels in a Diesel Engine.” S.A.E. paper 690252 1969
- 1973-74 ASTM Manual for Rating Motor, Diesel, and Aviation Fuels
- Lancaster D. R. Krieger R. B. Lienesch J. H. “Measurement and Analysis of Engine Pressure Data.” S.A.E. paper 750026 1975
- Brown W. L. “Methods for Evaluating Requirements and Errors in Cylinder Pressure Measurement.” S.A.E. Transactions 76 paper 670008 1967
- Elias N. Y. “An Experimental Study Supported by a Computer Simulation in a Prechamber CFR Diesel Engine Leading to a Modified Cetane Scale for Rating Low Ignition Quality Fuels.” Wayne State University Detroit, Michigan 1976
- 1952 ASTM Manual
- Tsao K. C Myers P. S. Uyehara O. A. “Gas Temperatures During Compression in Motored and Fired Diesel Engines.” S.A.E. Transactions 70 136 1962
- Sitkei G. Ramanaiah G. V. “A Rational Approach for Calculation of Heat Transfer in Diesel Engines.” S.A.E. paper 720027 1972