EXPERIMENTAL INVESTIGATION OF EMISSION CHARECTERISTICS FOR METHYL ESTER MANGO SEED BIODIESEL OF DIESEL ENGINE

Biodiesel is one of the needful research areas in growing automobile usage era. Most of the researchers focused on the biodiesel as alternate fuel areas but the ignition levels are not reached as that of pure diesel. This work focusing on the extraction of the methyl ester mango seed oil form naturally available mango seeds and experimental investigation of the emission characteristics in a single cylinder, 4-stroke diesel engine for Methyl Ester Mango Seed (MEMS) biodiesel compared with the pure diesel. The MEMS biodiesel may be an alternative for the conventional diesel fuel. The experiments were conducted to estimate the emission characteristics for pure diesel, B10, B20 and B30 MEMS biodiesels, for 210 bar, 225 bar and 250 bar injection pressures at for different engine loads. The emission characteristics of the diesel engine are enhanced like HC (ppm), CO%, CO2%, O2% and NOx (ppm) for the all the engine loads, at different injection pressures for pure diesel, B10, B20 and B30 MEMS biodiesels. The CO emission for B10 and B20 was inferior to the diesel at full load, whereas CO emissions wee higher at B30 biodiesel for all engine loads and the NOx emissions of MEMS blends were superior than diesel fuel.