PERFORMANCE ANALYSIS OF DIESEL ENGINE FUELED USING JATROPHA BIO DIESEL BLENDED FUELED

Biodiesels have recently been recognized as a potential substitute to Diese l oil. It is produced from oils or fats using a process called transesterification, in which oils are reacted with alcohols in order to form the esters, which are called biodiesels. Feedstock for biodiesel include animal fats, vegetable oils Jatropha, Mahu a, Sunflower, Palm, Pongamia Pinnata (Karanja), Cotton seed, Neem, Rubber seed, Corn, Sesame, Cotton seed. Biodiesel is a liquid closely similar in properties to fossil/mineral diesel. Chemically, it consists mostly of Fatty Acid Methyl (or Ethyl) Esters ( FAME). Most of the biodiesels meet the American Society for Testing and Materials (ASTM) biodiesel standards. Several developed countries have introduced policies encouraging the use of bio diesels made from vegetable oils, bio mass etc. in transport, agri culture and other sectors with the idea of achieving the following goals. It this experiment shows that B25 (25% Biodiesel & 75% Diesel) have closer performance to 100% Diesel and 100% Bio Diesel had lower brake thermal efficiency mainly due to its high vi scosity compared to diesel. The brake thermal efficiency for Bio diesel and its blends was found to be slightly higher than that of diesel fuel at tested load conditions and there are no difference between the biodiesel and its blended fuels efficiencies. For Jatropha biodiesel and its blended fuels, the exhaust gas temperature increased with increase in power and amount of biodiesel. However, its diesel blends showed reasonable efficiencies, lower smoke, CO and CO 2 . Methyl ester of Jatropha offers fuel con servation as well as reduces pollution. The emission constituents are carbon monoxide (CO), unburnt hydrocarbons (HC), Oxides of nitrogen (NO X ), Carbon Dioxide (CO 2 ).