关键词: 重力热管')">

重力热管, 铜丝网吸液芯结构, 热阻, 强化换热

Abstract:

Through the experiment of inserting copper wire mesh wick into the heat pipe,the thermal resistance factors such as the starting time,stable temperature and thermal resistance of the gravity heat pipe which mainly affect the heat transfer performance of the heat pipe with different mesh number copper wire mesh structure are analyzed and studied.The experimental results show that under the same working conditions,the start-up time of the heat pipe with different mesh size is shorter than that of the ordinary heat pipe,and the heat pipe with small mesh size has lower stable temperature.The thermal resistance first decreases and then increases with the increase of mesh size.In the scope of this experiment,3# tube has the best heat transfer performance.This experiment provides a direction for the study of heat transfer enhancement of gravity heat pipe.

Key words: gravity heat pipe')">

gravity heat pipe, structure of liquid wick of copper wire mesh, thermal resistance, enhanced heat transfer