期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：1
页码：8364
出版社：S&S Publications
摘要：The continuous increasing demand for energy and the decreasing petroleum resources has led to the search foralternativefuel which is renewable and sustainable. Vegetables oils are simplest route of biofuel utilization in directinjection compression ignition (DICI) engines however several operational and durability problems are encountered whileusing straight vegetable oils in CI engines due to their high viscosity and low volatility. Reduction of viscosity by blendingor exhaust gas heating leads to savings in chemical processing cost incurred on trans-esterification. This article presents thecomparative bench testing results of a four stroke, four cylinder, direct injection, unmodified, naturally aspirated dieselengine operating on karanja oil (KO) and its 2.5 vol%, 5 vol%, 7.5 vol% and 10 vol% blends with ethanol (EKO), petrol(PKO) and both improving agents applied in equal proportions as 50:50 vol% (EPKO).The purpose of this research is toexamine the effects of KO inclusion in Diesel fuel on the brake specific fuel consumption(bsfc) of a Diesel engine, its brakethermal efficiency, brakemean effective pressure, mechanical efficiency and volumetric efficiency. The brake specific fuelconsumption at maximum torque (517 g/kW h) for EPKOis higher by 13.8% relative to Diesel fuel. It is difficult todetermine the KO concentration in Diesel fuel that could be recognized as equally good for all loads and speeds. Themaximum brake thermal efficiency varies from 0.157to 0.181 for EPKO and from 0.182 to 0.198 for Diesel fuel. Additioninto KO of ethanol and petrol its viscosity at ambient temperature of diminishes to a great extent and for blend EPKO10 isalmost equal to diesel.
