板式脉动热管的实验研究  

EXPERIMENTAL RESEARCH ON FLAT PULSATING HEAT PIPE

作　　者：权力[1] 贾力[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院动力系

出　　处：《工程热物理学报》2010年第6期1009-1012,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50776006);“863”计划资助项目(No.2006AA05Z228)

摘　　要：本文搭建了板式脉动热管的实验台并进行了实验研究。在电加热循环水冷却的情况下研究了小型板式脉动热管的启动和运行特性，以及脉动热管的倾斜角度、充液率、工质等因素对板式脉动热管换热状况的影响。实验结果表明，当热管启动运行时，热端温度降低冷端温度升高，热阻减少。不同充液率和倾斜角存在着不同的临界启动功率。管内真空度对启动运行有一定的影响。在本实验条件下，热管在垂直加热、充液率为30％、工质采用丙酮时传热效果最好。An experimental system of flat plate pulsating heat pipe was established and experimental research was carried out in this system to understand the start-up time, operating characteristics of mini-flat pulsating. Also the effects of incline angle, fill ratio and working fluid on plate pulsating heat pipe were discussed. The results indicate that temperature of heating section decreases and the temperature of cooling section increases, then the thermal resistant of PHP is decreased once the plate pulsating heat pipe starts to work. Different start-up powers are needed for different fill ratios and incline angles. The inter pressure of PHP has some impacts on the start-up and operation of PHP. The flat heat pipe with acetone as working fluid gives better performance in this study.

关 键 词：板式脉动热管 启动功率 影响因素 

分 类 号：TK124[动力工程及工程热物理—工程热物理]