Study of the piston temperature oscillation during an operating cycle of the turbo-charged diesel engine

In this study, the mathematical description of characteristic surfaces of heat exchange of the piston and temperature distribution of the turbo- charged diesel engine during an operating cycle was presented. The computations were performed by means of the two-zone combustion model, the boundary conditions of III kind in crank angle function and the finite elements method (FEM) by using ANSYS Software. The paper showed different combustion boundary condition treatments to calculate temperature distribution in the piston, especially used a new heat transfer coefficient correlation, also thermal circuit method to model the heat transfer in the ring land and skirt region.