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Effects of Blending Crude Ethanol with Unleaded Gasoline on Exhaust Emissions of SI Engine
Technical Paper
2000-01-2857
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper examines the effects of using ethanol, as a replacement of lead additives in gasoline, on exhaust emissions of a typical SI engine. The ethanol was blended with a base unleaded fuel in three ratios (10, 15, and 20 vol.%). CO, HC, and NOx emissions were evaluated at a wide range of engine operating conditions using an engine dynamometer set-up. The results of the ethanol blends were compared to those of the base fuel and of a leaded fuel prepared by adding TEL to the base. With respect to the base and leaded fuels, the addition of ethanol decreased the CO emissions significantly. Low ratio ethanol blends increased the HC emissions and decreased NOx emissions at most operating conditions. On the other hand, higher ratio ethanol blends resulted generally in similar or lower HC emissions, and similar or higher NOx emissions. The emissions results for the leaded fuel were comparable to those of the base fuel at most operating conditions.
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Al-Farayedhi, A., Al-Dawood, A., and Gandhidasan, P., "Effects of Blending Crude Ethanol with Unleaded Gasoline on Exhaust Emissions of SI Engine," SAE Technical Paper 2000-01-2857, 2000, https://doi.org/10.4271/2000-01-2857.Also In
References
- Heywood, J. B. “Internal Combustion Engine Fundamentals,” McGraw-Hill 1988
- Bata, R. M. Roan, V.P. “Effects of ethanol and/or methanol in alcohol-gasoline blends on exhaust emissions,” Transactions of the ASME 111 July 1989
- Furey, R. L. King, J. B. “Evaporative and exhaust emissions from cars fueled with gasoline containing ethanol or methyl tert-butyl ether,” SAE Paper 800261 1980
- Naman, T. M. Allsup, J. R. “Exhaust and evaporative emissions from alcohol and ether fuel blends,” SAE Paper 800858 1980
- Stump, F. D. Knapp, K. T. Ray, W. D. “Influence of ethanol-blended fuels on the emissions from three pre-1985 light-duty passenger vehicles,” J. of Air & Waste Manage. Assoc. 46 1149 1161 December 1996
- Rajan, S. “Water-ethanol-gasoline blends physical properties, power, and pollution characteristics,” Journal of Engineering for gas Turbines and Power 106 841 848 October 1984
- Rice, R. W. Sanyal, A. K. Elrod, A. C. Bata, R. M. “Exhaust gas emissions of butanol, ethanol, and methanol-gasoline blends,” Journal of Engineering for gas turbines and Power 113 July 1991