Analysis of Thermal Loading of a Large LPG Engine Piston Using the Inverse Heat Conduction Method

열전도의 역문제 방법을 이용한 대형 LPG 엔진 피스톤의 열부하 해석

The convection heat transfer coefficients on the top surface of a large liquid petroleum liquid injection(LPLi) engine piston are analyzed by solving an inverse thermal conduction problem. The heat transfer coefficients are numerically found so that the difference between analyzed temperatures from the finite element method and measured temperatures is minimized. Using the resulting heat transfer coefficients as the boundary condition, temperature of a large LPLi engine piston is analyzed.