Emission Characteristics of a Diesel Engine Operating on Percentage of Blending of Castor Oil Biodiesel-Diesel

Nowadays the crude oil and Petroleum products consumption are increasing rapidly. Recent concerns are the environment; increasing fuel prices and the scarcity of its supply have promoted interest in the development of alternative sources of petroleum fuels. In this research, castor oil methyl ester was prepared by transesterification using potassium hydroxide (KOH) as a catalyst and tested in a four-stroke, single-cylinder compression ignition engine. The test was carried out at a constant speed of 3000 rpm and 210 bar at different loads. The emission results of the comparative test indicated that CO and smoke density emissions are found to be lower as compared to diesel, while carbon dioxide (CO2) and nitrogen oxide (NOx) are found to increase marginally. Brake thermal efficiency and the brake Specific fuel consumption decreases and Increase respectively in Biodiesel different blends with comparison of diesel.