Experimental investigations on CI engine using different combustion chambers and biodiesel as fuel

Abstract

The rapid utilization of crude oils in present days has been created shortage of petroleum products. The shortage of crude oil reserves has a major impact on industrial, transportation and agriculture sectors. Therefore there is a necessity to alter crude oils with alternative fuels. This paper investigates the performance and pollutant parameters of compression ignition engine with soap nut and palm stearin methyl esters as alternative to diesel fuel. Piston bowl configuration has a major effect in the preparation of air-fuel mixture. Hence in this work attempts are made to minimize the exhaust pollutants and improve the performance parameter by varying the combustion chamber geometry. The various combustion chamber designs viz., Hemispherical, Toroidal, Re-entrant and double wedge combustion chamber are employed. The results indicates that Re-entrant combustion chamber is a better choice with soap nut methyl ester as a fuel.