Unsteady Heat Transfer Model for Tank Power Device Based on Lumped Parameter Method

Based on the lumped parameter method,an unsteady heat transfer model is developed for a tank power device,in consideration of heat transfer in the engine combustion chamber, heat transfer among major engine components, cooling system, lubricating system, and power cabin airflow. The thermal coupling calculations are formulated including the combustion gas and the engine parts,between the parts,the pans and the coolant liquid,the parts and the lubricant oil,the pans and the air in the power cabin. An example simulation is implemented under the condition of an unsteady heat transfer in its power device of a tank. The results show that this model is suitable for studying unsteady heat transfer of the tank power device.