Analysis of Engine Performance by using Acetylene in CI Engine Operated on Dual Fuel Mode
Author Name : Deepak Tanwar, Ruchika Tanwar, Nakul Aggarwal
ABSTRACT A preliminary investigation on the utilization of used transformer oil (UTO) as an alternative fuel for a single cylinder, four stroke diesel engine with optimum injection timing of 20° bTDC (before top dead centre) and injection pressure of 200 bar showed that the engine fueled with UTO gave a lower thermal efficiency and higher smoke emission than the diesel operation at full load. This is because of higher viscosity and poor volatility of UTO compared to diesel. The present investigation is aimed to examine the combustion, performance and emissions of a single cylinder, four stroke, direct injection diesel engine developing 4.4 kW at a rated speed of 1500 rpm, at optimum injection timing and optimum injection pressure of 230 bar, with lower compression ratios of 17:1 and 16:1, fueled with UTO by varying the clearance volume. At lower compression ratio, the engine exhibits a lower thermal efficiency and more smoke level. The engine behavior was also tested at higher compression ratio of 18.5:1. The effect of compression ratio on emission parameters of the engine fueled with UTO in comparison with diesel fuel operation is obtained. The optimum compression ratio was found to be 18.5:1.