Wear Analysis of Compression Ignition Engine using Mesua ferea linn Methyl Eseter

Abstract

As the standard of living is increasing day by day, the demand for energy consumption is also increasing due to the increasing population and expanding urbanization.At the same time,the whole world is aware about the depletion of petroleum reserves and its impact on environment pollution through exhaust emissions which has become a major threat to the whole world, so to deal with this there is an urgent need of suitable alternative fuels for use in diesel engine. Biodiesel is a suitable alternative fuel which is generally produced from renewable biological resources like vegetable oil and animal fats. It is biodegradable , non toxic, has lower emissions profile and at the same time environment friendly. In this study, biodiesel is prepared using mesua ferea linn(MFL)seed oil by transterification process. Two similar engines were operated for long turm endurance test using optimum biodiesel blend and petroleum-diesel oil, respectively. Atomic absorption spectroscopy (AAS) was used to check the wear debris concentration in lubricating oil samples which were drawn from both the engines after a fixed interval of time. Biodiesel operated engine showed lower wear debris concentration as compared to diesel operated engine. Scanning electron microscopy( SEM) showed lower damage of small disk of piston ring when operated with 20% biodiesel fuel, which revealed the better lubricity of biodiesel fuel. Also, carbon deposition of various parts like fuel injector, piston head were found to be lower in biodiesel used engine than that of diesel used engine.