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Maximizing Efficiency of Fuel Production and Utilization
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English
Abstract
An experimental study was undertaken to determine the influence of fuel octane quality, engine compression ratio, and ignition timing adjustment on fuel utilization efficiency. This information, combined with data on refinery energy consumption for producing fuel of various octane qualities, can be used to estimate the potential for improvement in miles traveled per barrel of crude oil consumed.
The vehicle selected for this investigation incorporated a closed-loop, air/fuel ratio control system using an oxygen sensor and a three-way catalyst. Ignition timing was adjusted for minimum fuel consumption at each of three compression ratios with the engine operating on fuels of various octane quality. An ignition timing retard system was used for those combinations of compression ratio and fuel quality which precluded use of best ignition timing.
Results indicate that a 13% improvement in miles traveled per barrel of crude oil consumed is possible.
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Citation
Koehler, D. and Marshall, W., "Maximizing Efficiency of Fuel Production and Utilization," SAE Technical Paper 810062, 1981, https://doi.org/10.4271/810062.Also In
References
- Lawrence D. K. Plautz D. A. Keller B. D. Wagner T. O. “Automotive Fuel - Refinery Energy and Economies.” Paper 800225 SAE Congress and Exposition Detroit, MI Feb. 25-29, 1980
- Wallace T. F. “BUICK'S Turbocharged V-6 Powertrain for 1978” Paper 780413 SAE Congress and Exposition Detroit, MI Feb. 27-March 3, 1978
- Currie James H. Crossman David S. Gumbleton James J. “Energy Conservation with Increased Compression Ratio and Electronic Knock Control.” Paper 790173 SAE Congress and Exposition Detroit, MI Feb. 26-March 2, 1979
- Engh Grunde T. Wallman Stephen “Development of the Volvo Lambda-Sond System.” Paper 770295 SAE International Automotive Engineering Congress and Exposition Detroit, MI Feb. 28-March 4, 1977