Study of Smoke Levels Using crude Jatropha Oil with Preheated Condition and at Normal Condition Injection in High Grade Low Heat Rejection Combustion Chamber of Diesel Engine at Different Operating Pressures

Abstract Smoke levels were determinedon high grade insulated diesel engine which consisting of ceramic coated cylinder head, 3mm air gap insulated liner and 3mm air gap insulated piston with different operating conditions of jatropha oil(at normal temperature and preheated temperature) with varied injection pressures from 190 to 230 and 230 to 270 bar and varied injection timing from 270 bTDC to 320 bTDC . Smoke levels were calculated at various values of brake mean pressure(BMEP) of the insulated engine and the data is compared with the neat diesel operation of standard engine. Keywords: Vegetable oils. Conventional Engine, LHR Engine