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：2016
卷号：5
期号：2
页码：1339
DOI：10.15680/IJIRSET.2016.0502024
出版社：S&S Publications
摘要：Biodiesels derived from vegetable oils present a very promising alternative for diesel fuel , since they have numerous advantages compared to fossil f uels . They are renewable, biodegradable, provide energy security and foreign exchange savings besides addressing environmental concerns and socio – economic issues. However drawbacks associated with biodiesel of high viscosity and low volatility which cause combustion problems in CI engines , call for e ngine with hot combustion chamber . They have significan t characteristics of higher operating temperature, maximum heat release, and ability to handle low calorific value fuel. Investigations were carried out to evaluate the performance with low heat rejection combustion chamber with crude cotton seed biodiesel. It consisted of an air gap insulated piston , an air gap insulated liner and ceramic coated cylinder head with different operating conditions of cotton seed biodiesel with varied injection timing . The optimum injection timing with conventional engine ( CE ) was 31 o bTDC (before top dead centre) , while it was 28 o bTDC for engine with LHR combustion chamber with biodiesel . Comparative studies were made for engine with LHR combustion chamber and CE at manufacturer's recommended injection timing (27 o bTDC) and optimum injection timing with biodiesel operation . Engine with LHR combustion chamber with biodiesel showed improved p erformance a t 27 o bTDC and at optimum injection timing over CE.
