ABSTRACT

The direct injection diesel engines used for commercial and transport applications are main causes of disaster of fossil fuel reduction and environmental degradation due to emissions. In order to address these difficulties, in this study, mahua methyl ester (MME) and ethanol, an alternative methyl ester, have been considered to be used as a substitute fuel in light of greener emissions related to pure diesel. The engine performance parameters studied were brake specific fuel consumption, brake thermal efficiency, and oxides of nitrogen (NOx) by using diesel fuel alone and the different blend fuels. The performance of engine with blend fuel was found to be better than the pure diesel. The unburned hydrocarbon emission was reduced significantly and the NOx emission decreased at different load condition.