Design and Simulation of Steady State Thermal Analysis of Exhaust Engine Valve

Abstract-Internal combustion engines produce exhaust gases at high temperature and pressures. As these hot gases passes through the exhaust valve ,temperatures of the valve ,valve seat, and the stem increase .To avoid any damage to the exhaust valve assembly , heat is transferred from the exhaust valve from different parts ,Especially the valve seat insert during the opening and closing cycle as they come into contact each other . In this article, A Finite-Element method is used for modeling the transient thermal anaiysis of an exhaust valve .The temperature distribution and resultant thermal stresses at each opening and closing time are obtained. Detailed analyses are performed to estimate the boundary conditions of an internal combustion engine. The modeling includes exhaust valve, seat, guide, and spring. The analysis continues until a steady state condition is obtained. In this study ANSYS is employed for modeling and analysis of the exhaust valve. A Methodology is developed for transient thermal analysis of the exhaust valve.