Experiment on the Performance and Emission Characteristics of the Blend B25 of Papaya Oil Methyl Ester on a Diesel Engine with Standard and Magnesium Stabilised Zirconia Coated Piston

The long term ongoing research in the field of automobile is to increase the efficiency of the engine and to reduce its harmful exhaust emissions. It is well known that only the one third of the thermal energy produced during the combustion of fuel is converted into useful mechanical work. Thermal barrier coating reduces the rate of heat transfer and utilizes the maximum rate of heat developed for the complete combustion of fuel. In this paper a comparison is made on the performance and emission characteristics of the blend B25 of papaya oil methyl ester on a single cylinder diesel engine with standard and magnesium stabilised zirconia coated piston under variable loading condition from no load to full load in the incremental of 20% and its thermal analysis using ANSYS. The blend B25 is selected because it is found optimum when compared with its other blends in earlier investigation.