重力热管换热性能的优化分析

华电技术 ›› 2013, Vol. 35 ›› Issue (1): 23-26.

重力热管换热性能的优化分析

程伟良，狄安，季辉，勾建辉

华北电力大学能源动力与机械工程学院，北京 102206

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-01-25 发布日期:2013-01-25

Analysis on optimization of heat transfer performance of gravity assisted heat pipe

CHENG Weiliang，DI An，JI Hui，GOU Jianhui

School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Received:1900-01-01 Revised:1900-01-01 Online:2013-01-25 Published:2013-01-25

摘要/Abstract

摘要： 热管在工业余热利用及其他特殊行业有重要的应用价值，因此，对传热性能优化及综合设计进行研究具有重要意义。分析了影响重力热管热传输性能的3个要素，即管外翅片、管壳管径及管内工质充液率。通过试验得到了充液率和导致热管失效的输入热流密度的关系，在试验数据的基础上着重分析了热流密度对不同充液率的热管内部汽液分布的影响。

关键词: 重力热管, 换热性能, 充液率, 汽液分布

Abstract: The heat pipe has important application value in industrial residualheat utilization and some other special industries. Thus, the research on heat transfer performance optimization and comprehensive design is of great significance. The three factors influencing on the heat transfer performance of gravity assisted heat pipe, which include the fin in pipe outside, the pipe shell diameter and the working fluid filling ratio, were analyzed. The relation between the fluid filling ration and the input heatflow density, which can cause the heat pipe to fail, was found by experiment. Based on the experimental data, the influences of the heatflow density on the vaporliquid distribution inside the heat pipes with different fluid filling ratio were analyzed emphatically.

Key words: gravity assisted heat pipe, heat transfer performance, fluid filling ratio, vapor-liquid distribution

程伟良;狄安;季辉;勾建辉. 重力热管换热性能的优化分析[J]. 华电技术, 2013, 35(1): 23-26.

CHENG Weiliang;DI An;JI Hui;GOU Jianhui. Analysis on optimization of heat transfer performance of gravity assisted heat pipe[J]. Huadian Technology, 2013, 35(1): 23-26.