PERFORMANCE EVALUATION OF LHR ENGINE USING PALM STEARN METHYL ESTER OIL WITH A SELECTED CONFIGURATION OF PISTON GEOMETRY

S.Venkata Lakshmi, K.Vijaya Kumar Reddy

Abstract: Now a days for any country energy resourses in particular petroleum products have become important for its development. The products derived from crude oil continued to be the major and critical source of energy for transportation sector all over the world. For economic development of any country both industries and transportation sectors are very important for a growth of country like India. It is strongly depends on transportation and power generation. It is learnt that the fossil fuel are depleting at faster rate than expected. Hence the increasing demand of fossil fuel leads to exhaust of petroleum products in near future. In this connection the rising price of petroleum products and environmental concern lead to intensive studies on the use of alternative fuels. Any alternative fuel which find suitable as substitute to diesel is comparatively inferior to diesel in performance, emission and combustion characteristics. Hence there is a need to improve and optimize the fuel properties. In the present work an attempt is made to improve the performance of CI diesel engine using Vegetable oil ester. Hence in this work palm stern methyl ester is used with a modified piston geometry and LHR using concepts. The experiments are carried out on a 4- stroke single cylinder CI diesel engine of 5.2 KW. The experiments are conducted repeatedly with diesel fuel and palm stern methyl ester. Since these oils have slightly longer ignition delay, The low heat rejection engine concept is used in this work. In order to convert the base engine has LHR engine the piston crown is coated with partially stabilized zirconium PSZ of 0.5 mm thickness. From the results it is observed that the modified piston geometry with LHR engine concept has considerably given superior all round performance.

Keywords: LHR Engine, Stearn Methyl Ester Oil, Piston Geometry, Piston Geometry

DOI: https://doi.org/10.15623/ijret.2014.0302083