Simulation on Positive Temperature Coefficient Heat Ex-changer in Electric Vehicle

Abstract

Different from the conventional vehicle, there is no low quality heat to be used in the electric vehicle (EV); therefore, additional high efficient heating system is essential for EV. Positive temperature coefficient (PTC) water heater has been widely used as one of the steadiest heating methods. This paper analyzed the performance of series of designed structures by numerical simulation, capacity at different temperature, the heat resistance, flow field and temperature field of flow were obtained and an optimization direction was proposed.