Experimental Investigation on the Performance of a CI Engine Fueled with Waste Cooking Oil Biodiesel Blends in Varying Compression Ratio

Abstract

Impressive consideration has been made to biodiesel production as an option in contrast to Petro diesel because of the environmental issues brought about by the utilization of petroleum products and its restrictions in not so distant future. Alternative diesel fuel arranged from home grown sustainable resources i.e., produced from vegetable oils and animal fats that are ecofriendly is Biodiesel. In this study, different performance parameters of a CI engine fueled with waste cooking oil biodiesel blends in different percentage volumes of 5% (W5), 10% (W10), 15% (W15) and 20% (W20) were tested experimentally. First, biodiesel was produced from waste cooking oil by the Transesterification process. The physical-chemical properties of biodiesel and W20 were tested. The tested properties of W20 were found to ASTM standards near diesel fuel. Subsequently, test of diesel and biodiesel blended fuels were carried out using 15:1, 17:1 and 18:1 compression ratio on Kirloskar Single Cylinder Compression Ignition Engine at 1500 rpm on varying loads of 1 kg, 3 kg, 6 kg, 9 kg and 12 kg. The engine performance parameters such as Indicated Power (IP), Brake Power (BP), Brake Mean Effective Pressure (BMEP), Brake Thermal Efficiency (BTE), Specific Fuel Consumption (SFC) and Mechanical Efficiency (ME) were verified. The experimental outcomes confirm that the IP and SFC of blended biodiesel were slightly superior to diesel. Correspondingly, BP and BMEP were also found comparable to diesel fuel. On the other hand, mechanical efficiency, Brake thermal efficiency and Specific fuel consumption were found to be comparable to diesel in higher compression ratio.