Performance Characteristics & Emission Analysis Of Mustard Oil Based Biodiesel In CI Engine Using Exhaust Gas Recirculation

摘要

Increase in the price of crude oil and the release of harmful emissions from the automobiles force researchers to search for an alternative source of energy for fueling. Biodiesel production from plant seed have become a promising alternative fuels for diesel powered engines. The biodiesel was extracted from the mustard oil and it was blended with the diesel in the ratio of MB10 (10% Mustard Biodiesel, 90% diesel), MB20 (20% Mustard Biodiesel, 80% Diesel), and MB30 (30% Mustard oil, 70% Diesel), MB40 (40% Mustard Biodiesel, 60% Diesel), MB50 (50% Mustard Biodiesel, 50% Diesel). The blends were tested in a single cylinder, constant speed (1500 rpm) diesel engine with 15% of exhaust gas recirculation (EGR). The performance and emission characteristics were measured for various diesel blends. The results shows that the Brake thermal efficiency (BTE) was decreased about 3% to 4% as the specific fuel consumption is increased for all the blends. The smoke and CO emissions were found to be decreasing with increase in the blend, the maximum decrease of 35% and 53% was observed for MB50 blend of smoke and CO emissions respectively. The NOX emission was reduced about 40% because of the increase in the combustion temperature and pressure for M50 blend.