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.
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)
关键词
环路热管
平板蒸发器
热性能
临界热载荷
loop heat pipe（LHP）
flat evaporator
thermal performance
critical heat load
