As the price of petroleum oil is increasing, the need to develop alternate fuels has become acute. Bi Odiesels produced by transesterification of vegetable oils or animal fats with is simple alcohol and cat Alysts attracts more and more attention recently. Biodiesels a clean burning alternative and has may attractive features including renewability, biodegradability and low emission. The aim of the present review is to study the biodiesel production from transesterification process, effect of various reaction parameters on conversion of biodiesel yield and its combustion performance and emission characteristics. Characteristic fuel properties of crude pongamia pinnata oil methyl ester (CPPOME)iadiits blends with conventional diesel oil in the proportions of 20:80(B20), 40:60(B40), 60:40(B60) adi8 0:20(B80) respectively is studied. Based on the study conducted various results like effect of viscos ty, specific gravity, heat of combustion, flash point, etc. Were derived and comparisons we read. The experimental setup for each of the following is explained in detail along with the required pictures for each explanation. The engine used for the study is a single cylinder four stroke engie which has iairatedipoweriofi4ikwiat 1500 RPM. As a result of these experiments the percentage mission oficar bon-monoxides, various hydrocarbons and nitrous-oxides are tabulated against varying loads from zero load to full load. Also the performance characteristics like brake power, brake thermal efficiency and brake specific energy consumption has also been tabulated for the is same varying loads. Later these performance characteristics are illustrated in the form of graphs for better clarity. The study is concluded with biodiesel production methods and investigation of fuel properties of methyl ester and its blends
