TY - JOUR
TI - The effect of supercharging on performance and emission characteristics of C.I. Engine with diesel-ethanol-ester blends
AU - Jagadish Donepudi
AU - Kumar Puli Ravi
AU - Murthy K Madhu
JN - Thermal Science
PY - 2011
VL - 15
IS - 4
SP - 1165
EP - 1174
PT - Article
AB - Biofuels like ethanol, biodiesel, have attracted attention of people  worldwide and proved to be the successful fuel alternates to petroleum  products. In the present investigation, the effect of supercharging is  studied on the performance of a direct injection diesel engine using ethanol  diesel blends with palm stearin methyl ester as additive. The performance of  the engine is evaluated in terms of brake specific fuel consumption, thermal  efficiency, exhaust gas temperature, un-burnt hydrocarbons, carbon monoxide,  nitrogen oxide emissions, and smoke opacity. The investigation results showed  that the output and torque performance of the engine with supercharging was  improved in comparison with naturally aspirated engine. It is observed that  the brake thermal efficiency of ethanol diesel blends was higher than that of  diesel. With supercharging brake thermal efficiency is further improved.  Brake specific fuel consumption of ethanol, ester and diesel blends are lower  compared with diesel at full load. Further reduction in brake specific fuel  consumption is observed with supercharging. Nitrous oxide formation seems to  decrease with ethanol, ester and diesel blends. Hydrocarbons and carbon  monoxide emissions are more with ethanol, ester and diesel blends with  supercharging slight reduction in those values are observed.