| Limited amount on the non-renewable fuel sources and the increasingly world wide demand on the fuel have driven new technologies and methods for designing more fuel efficient engines. There are rooms for improvement, e.g., a smaller liquid coolant pump that pumps less liquid for an optimized cooling system. Locating hot spots inside the cooling jacket can be used as a tool to design an efficient cooling system. This study focuses on how to predict hot spots of one of the cylinders of a V8 5.4 L FORD engine running at full load. The KIVA code with conjugate heat transfer capability to simulate the transient heat transfer process between the gas and the solid phases has been developed at the Michigan Technological University and will be used in this study. Liquid coolant flow was simulated using FLUENT and will be used as the boundary condition to account for the heat loss inside the cooling jacket. In the first step of calculation, the coupling between the gas and the solid phases will be solved using the KIVA code. A 3D transient heat flux history at the gas-solid interface is then compiled and used along with the heat loss information from FLUENT to obtain the temperature distribution for the engine metal components, such as cylinder wall, cylinder head, etc. |
