Performance and Emissions Characteristics of Biodiesel from Waste Cooking Oil Blended with Kerosene on Diesel Engine

Due to steady reduction of world petroleum reserves and the influence of environmental pollution there is a serious need for suitable alternative fuels for use in diesel engines. In view of this, waste cooking oil biodiesel blended with kerosene is a promising alternative because it is renewable, environment friendly and produced easily in rural areas, where there is an acute need for modern form of energy. Therefore, during recent years a methodical approach has been made by several researchers to use waste cooking oil biodiesel as a fuel in IC engines. In this study the waste cooking oil collected from various places such as hotels, food bakery, and chips shop etc., the waste cooking oil was converted into biodiesel through Tran’s esterification process which is methanol and KOH was used as catalyst. The pure waste cooking oil having high viscosity and calorific value which is performs lower brake thermal efficiency and higher exhaust emission. Here kerosene act as a dilution agent to reduce the viscosity and increase calorific value of waste cooking oil biodiesel. The kerosene was blended with waste cooking oil biodiesel by various percentages such as 10%, 20% and 50%. The experimental investigations were carried out in single cylinder, water cooled four stroke Kirloskar TV 1 diesel engine and coupled with an eddy current dynamometer as loading device. The performance and emission characteristic were investigated on that test engine with various load condition and minted at constant speed of the engine. The brake thermal efficiency is increased for maximum concentration of 50% kerosene into waste cooking oil biodiesel (BD50:KE50). It has shown an increase of 2.55% compared to waste cooking oil biodiesel (BD100). The specific fuel consumption is decreased to the blend BD50:KE50 compared to BD100 blend. The CO, HC, smoke emission, are found to decreases with the blend BD50:KE50 and increases of NOx emission compared to that of waste cooking oil biodiesel. The decreasing value of CO, HC, smoke, is 20%, 11.5%, 21.5%, respectively and NOx is slightly increases.