Experimental Analysis of Emissions in a 4S Diesel Engine Blended with Refined Vegetable Oil

ABSTRACT: In the scenario of fossil fuels and in ever depleting, there is always a scope for alternative fuels and this paper aims to study blends of diesel with Refined corn oil (BRC) on a stationery engine. The experiment is done on krisloskar Direct injection 4 stroke diesel engine, single cylinder, air cooled 4.4 kW constant speed at 1500 rpm with an compression ratio 17.5:1. Methyl esters of BRC were transesterified with sodim meth oxide before blending with diesel. For different blends at diesel (10%, 30%, 40%) in volume at specific injection pressures ( 180bar, 210 bar and 240bar) against different loads (0%, 25%, 50%, 75%, and 100%) have been tried in the experiment to study NOx, CO, HC, Smoke emissions with exhaust temperature. A 3-hole nozzle has been used and the emission are analyzed with AVL gas analyzer. Even though marginal increase in NOx with exhaust temperature at higher temperature are noticed the decrease in engine temperature by 3 deg in addition to HC and CO an significant

Emission and Performance analysis of hydrotreated refined sunflower oil as alternate fuel

AbstractThe experiments were conducted by using the hydrotreated refined sunflower oil as alternative fuel in a 4-stroke, stationary DI diesel engine at a constant speed of 1500rpm. The effects of hydrotreated vegetable oil blends on diesel engine emission and performance were studied. The emission and performance were studied for different proportions such as HTSF B25 and HTSF B100 and at different loading conditions and comparison was made with petrodiesel. The emission and performance results of HTSF B25 and HTSF B100 showed that decrease in CO by 9% and 37%, HC by 42% and 55%, NOx by 10% and 18.18%, BSFC by 25% and 12.5%. The increase in brake thermal efficiency was by 10% and 38%. It was observed from the study that hydrotreatment of refined sunflower oil could be one of the best alternative fuels for the diesel engine