EFFECT OF STERCULIA FOETIDA BIODIESEL ON SINGLE CYLINDER FOUR STROKE DIESEL ENGINE PERFORMANCE AND EMISSIONS

Abstract

In the present work, transesterified new biodiesel of sterculia foetida oil is mixed with diesel and the engine performance, combustion and emission was analysed. The primary objective work is to produce a new alternate and biodegradable fuel for compression ignition engine. The biofuel oil is an extract from sterculia foetida seed and transesterfied with 20 % methanol and 2 % KOH. The transesterfied biofuel concentrations were varied at 25%, 50%, 75% and 100% with diesel viz. B25, B50, B75 and B100. The engine is operated at different load conditions with different concentration of fuel. The experiments are conducted and the fuel blend B25 produces maximum of brake thermal efficiency in comparison with other biodiesel blends and produced maximum heat release and minimum emission produced at B25 biodiesel blend.