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Evaluating the Performance of Driveability Indices: A Correlation with the Enthalpy of Vapour Formation for Gasoline
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Abstract
It is desirable to predict the cold weather driveability performance of fuels by means of an index based on simple measurements such as the ASTM distillation curve. In the past, several such indices have been proposed from the analysis of vehicle test results. In contrast, this paper describes how a driveability index can be derived from first principles - namely, the physics of fuel vapour formation.
A number of present and proposed driveability indices were evaluated by comparing the way they correlate with the calculated enthalpy requirement of fuels. It is concluded that E100+E150 best meets the need for a simple index and is robust across a range of air/fuel ratios.
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Stephenson, T. and Luebbers, M., "Evaluating the Performance of Driveability Indices: A Correlation with the Enthalpy of Vapour Formation for Gasoline," SAE Technical Paper 982722, 1998, https://doi.org/10.4271/982722.Also In
References
- Barker D.A. et al “The development and proposed implementation of the ASTM Driveability Index for motor gasoline” SAE 88 1668
- Jorgensen Musser Uihlein Evans “A new CRC cold-start- and warm-up driveability test and associated demerit weighting procedure for mPFI vehicles” SAE 962024
- Co-ordinating European Council “Cold Weather Driveability Test Procedure”
- Ogawa Araga Okada Kato Nakada “Analysis of poor engine response caused by MTBE-blended gasoline from the standpoint of fuel evaporation” SAE 920800
- Harrison A.J. “Enthalpy requirement - A new fundamentally-based gasoline volatility parameter for predicting cold-weather driveability” SAE88 1670
- Huggins P. “Program produces wide range of distillate properties” Oil&Gas Journal 30th November 1987
- API Technical Data Book
- Stephenson T. Paesler H. “The development of the High-Speed Cold Weather Driveability Cycle” SAE 961220
- Suzawa Yamaguchi Kashiwabara Fujisawa Matsubara “Relationship between MTBE-blended gasoline properties and warm-up driveability” SAE 952519
- Simon M Kaisev J.H. “A simple modified Redlich-Kwong equation of state for petrochemical process and design calculations” CHISA Conference Prague 21-25 August 1978
- Reinhart R D e Dood J Meijer H “Het gebruik v a n toestandsvergelijkingen i n d e olie e n chemische industrie.” The use of equations of state in the oil and petrochemical industry I 2 -Procestechnologie 14 11 17 1986