平板蒸发器环路热管的性能研究  

The characteristics of loop heat pipes in flat evaporator

作　　者：张宏刚[1] 方贤德[1] 霍莎莎[1] 

机构地区：[1]南京航空航天大学航空宇航学院,南京210016

出　　处：《航天器环境工程》2012年第2期197-200,共4页Spacecraft Environment Engineering

基　　金：国家自然科学基金资助项目(编号:51176074)

摘　　要：作为一种新型的热控元件,环路热管依靠其可靠性高、传热能力强和等温性好等特性,能够在小温差、长距离的情况下传递大量的热量,因而被广泛地应用于卫星、飞船及电子产品等的热控。特别是具有平板蒸发器的微型环路热管具有很广阔的应用潜能。文章建立了环路热管运行的热力学和动力学模型,在此基础上用C++程序语言设计了相应程序,对某给定环路热管进行了热力特性计算。研究表明,蒸发器内部的压力降在环路总压降中占主导地位。The loop heat pipe（LHP）,featuring high reliability,low thermal resistance,great thermal transfer capability,high efficiency,and good thermal equivalence,is widely used for the thermal control of satellites,spacecrafts,and electronics.It can dissipate a large amount of heat while keeping a tight control of the heat source temperature,especially for the miniature LHPs as used in flat evaporators,therefore,it has a good prospect of potential applications.This paper builds a numerical thermodynamic model and a dynamic model for simulating the operation of LHPs.The calculation program is developed with C＋＋ language.The calculation of the thermal operating characteristics of a given LHP with a flat evaporator is carried out.It is shown that the pressure drop within the flat evaporator is dominant in the total pressure drop of the loop.

关 键 词：环路热管 平板蒸发器 热性能 临界热载荷 

分 类 号：TK124[动力工程及工程热物理—工程热物理]