Abstract: | In this paper, modeling and simulation studies were conducted on the gravity heat pipe for automotive battery thermal management. The effects of different liquid filling rates, contact angles of the inner wall surfaces and initial pressures on the start performance and heat transfer characteristics of the heat pipe were analyzed by using the control variable method. The results show that the heat transfer performance is improved by increasing the liquid filling rate, and the heat transfer rate reaches a peak when the liquid
filling rate is 85.7%. With the increase of the contact angle, the heat transfer performance decreases and the heat transfer rate reaches a peak when the contact angle is 60°. As the initial pressure increases, the heat transfer performance decreases and the heat transfer rate reaches a peak with the initial pressure of 3 361 Pa. |