Effects of Al2O3 Nano Additives on the Performance and Emission of Dairy Scum Biodiesel Blended Diesel Engine

The Diesel engine is one of the most efficient engines among all types of internal combustion engines. Conventional fossil fuels cause more pollution this leads to search for environmentally friendly and renewable fuels. Biodiesel is one of the alternative source of fuels Biodiesel contains virtually no Sulphur or aromatics and use of biodiesel in a conventional Diesel engine result in substantial reduction of unburned hydrocarbons, carbon monoxide and particulate matter but disadvantages of biodiesel are higher density, lesser heating value, high fuel consumption and high oxides of nitrogen emission. To overcome this draw back additives are used with biodiesel. Due to their special properties like higher thermal conductivity, chemical properties additives promote better combustion this causes reduction of hydrocarbon emission and improve the performance of CI engine. In the present experimental work planned to carryout performance and emission tests of Al2O3 Nanoparticles additives of different proportion (50ppm, 100ppm and 150ppm) with optimized Dairy scum Biodiesel blend (B20). From this study, it is perceived that the addition of AL2O3 nano additive with Dairy scum Biodiesel-B20 enhance the brake thermal efficiency and marginally lower the brake-specific fuel consumption (BSFC) and HC, CO emissions and Marginal Increases in NOX. This study also revealed that B20+150 ppm nano additive fuel blend has exhibited the better performance, combustion and emission parameters.