345 Use of Jatropha Oil Methyl Ester and Its Blends as an Alternative Fuel in Diesel Engine

Biodiesel derived from nonedible oils are quite promising alternative fuels for agricultural diesel engines. Use of Biodiesel oils in diesel engines leads to slightly inferior performance and higher smoke emissions due to their high viscosity. The performance of Biodiesel can be improved by modifying them through the transesterification process. In the present work, the performance of single cylinder water-cooled diesel engine using methyl-ester of Jatropha oil as fuel was evaluated for its performance and exhaust emissions. The fuel properties of biodiesel such as kinematic viscosity, calorific value, flash point, carbon residue and specific gravity were found. Results indicated that B20 has closer performance to diesel and B100 has lower brake thermal efficiency, mainly due to its high viscosity compared to diesel. The brake thermal efficiency for biodiesel and its blends was found to be slightly higher than that of diesel fuel at tested load conditions and there was no difference between the biodiesel and its blended fuels efficiencies. But, diesel blends showed reasonable efficiency, and CO emissions.