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Abstract
In this study, ethyl ester of pungamia oil is added as an additive to prevent separation of bioethanol from diesel. Stability, fuel properties, performance, and emission characteristics of the blended fuels were investigated and compared with base diesel. The result of the tests shows that brake thermal efficiency of the engine was almost equal to that of base diesel. It was observed that the exhaust gas temperature and Carbon dioxide (CO2) emissions of the blends were lower than those of base diesel. The oxides of nitrogen (NOx) and smoke emissions were decreased upto 15% and 12% respectively with an increase of bioethanol upto 25% in the blends as compared with the base diesel. However, a slight increase in hydrocarbon (HC) and carbon monoxide (CO) emissions were observed. It can be concluded from the analysis of experimental results that the blend mixture E20P10D70 could be effectively used as a hybrid fuel in the existing compression ignition engine without any hardware modification.