Experimental investigations were made to evaluate the potential of using low-proof ethanol to supplement diesel fuel in agricultural engines. Fumigation, mechanical emulsification, and chemical emulsifiers were used to introduce a significant amount of alcohol with diesel fuel for engine operation. A total of five diesel tractor engines were tested using each of the fuel systems. Exhaust products and fuel usage were determined at various engine speed/load conditions. A 500-hour engine durability test was conducted on three of the engines using 25 % 160-proof ethanol with diesel fuel. Two tests were conducted using fumigation, and one test was done with a mechanical fuel emulsifier. Results suggest that approximately 25 % alcohol can be used with diesel fuel to realize essentially the same thermal efficiency as diesel fuel. In addition, no adverse effects on engine life expectancy were apparent using 25 % 160-proof ethanol fumigated into an engine. However, using the same fuels and a mechanical emulsification fuel introduction system led to premature engine failure.
Emissions, efficiency, and durability of agricultural diesel engines using low-proof ethanol
Emissionen, Leistung und Lebensdauer von Landmaschinendieselmotoren mit niedrigkonzentriertem Aethanol
SAE-Papers ; 1-8
1983
8 Seiten, 12 Bilder, 3 Tabellen, 8 Quellen
Conference paper
English
Emissions, Efficiency, and Durability of Agricultural Diesel Engines Using Low-Proof Ethanol
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