Performance and emission analysis of pongamia and jatropha biodiesels in a C.I. Engine

Biodiesels of vegetable oils are becoming increasingly popular because of their low environmental impact and potential as a green alternative fuel for diesel engine and they would not require significant modification of existing engine hardware. Methyl ester of Pongamia (PB) and Jatropha (JB) were derived through transesterification process. Experimental investigations have been carried out to examine performance and emissions of different blends (1:1, 2:1, and 1:2 by volume) of PB and JB in comparison to diesel. Results showed that brake specific fuel consumption for biodiesel and its blends was higher than that of diesel because of lower calorific value.