Production of Biodiesel from Oils of Jatropha, Karanja and Performance Analysis on CI Engine

The production of biodiesel from two non-edible oils of karanja (Pongamiaglabra) and jatropha (Jatrophacarcus) by base catalyst method and their use in compression diesel engine has been compared to evaluate better one for future purpose. The comparison of performance and emission characteristics of two biodiesels has been carried out in Compression Engine and evaluated for the best one for diesel engine application. Biodiesel of karanja (100% fatty acid methyl ester) gives best efficiency than jatropha but in case of blends of jatropha gives best efficiency than other. Jatropha oil shows maximum reduction in emission and fuel economy than others. Exhaust gas temperature of biodiesel of jatropha is higher than karanja. Considering the results of performance and emissions, jatropha appears to be best as alternative fuel than karanja.