Experimental investigation on performance and emission of CI engine using B20 waste cooking oil with and without exhaust gas recirculation

Abstract

Petroleum depletion, Environment degradation are the major problems which has to be looked upon in the coming days. Researchers are working for the best alternative,. Biodiesel is one of the substitutes. More fuel consumption higher density and oxides of nitrogen are some of the issues that should be seriously looked into when biodiesel is used as an alternative. In order to encounter these problems Exhaust Gas Recirculation (EGR) isused. Biodiesel is obtained from Waste Cooking oil by trans esterification process. In this paper an attempt has been made to study the Performance and Exhaust parameters of waste cooking oil biodiesel with and without EGR. Experiments were carried out on four stroke, single cylinder, water cooled Diesel engine [KIRLOSKAR MAKE] to study the Performance and Emission parameters of waste cooking biodiesel (B10 B20) blend with and without EGR. The results obtained at different blends is compared with diesel. It has been observed from the result that, for bio-diesel without EGR increase of 2.2% of brake thermal efficiency for B20 when measured with diesel and B10. Also the maximum Specific fuel consumption (SFC) is observed for diesel (0.2532 Kg/kw-hr) and minimum for B20 (0.235 Kg/kw-hr). So there is 7.65% decrease in SFC of B20. For emission characteristics, it was noted from results, the emission of CO in B20 is reduced by 16.66% as measured to diesel. The maximum NOx emissions at full load were showed for B 20(1294PPM) and for diesel (1142 ppm). It was observed from the results that using EGR technique Performance and emission parameters improved with B20 blend with reduction in NOX. Thermal efficiency increased and fuel consumption was better for B20 blend. With respect to emissions of B20 blend with EGR, reduction in CO and HC were observed with increase in NOx.