Comparative experimental analysis of CRDI Single Cylinder Diesel Engine using Diesel fuel and Neat Palm Methyl Ester

Abstract

An experimental study was done to evaluate the performance and emission analysis on Common Rail Direct Injection (CRDI) engine fuelled with diesel and neat palm methyl ester (PME) at different part loads (no load, 0.77, 1.54, 2.31, & 2.695 kW). By varying the fuel injection pressures from 200 to 500 bar, fuel injection duration 1000 µ.sec, fuel injection timing at 220 (BTDC) and at rated speed 1500 rpm were employed uniformly for both the fuels. CRDI engine ensures that the fuel injection timing, quantity of the fuel and atomization was controlled electronically by using a programmable control module (PCM). Here it is set the injection timing based on compromise between load, BSFC and rated speed. Engine performance data, Smoke, HC, NOx, CO and CO2 emissions were recorded. Investigations indicate the running condition of the engine with neat PME was good in most of the parameters when compared to diesel fuel and it was observed that PME reduces the BP and increases the BSFC than diesel because of its lower heat value. By the experimental observation PME increases the BTE; lowers the smoke and emissions almost equal but lower at particular loads than in the case of diesel fuel.