航天器环境工程
航天器環境工程
항천기배경공정
SPACECRAFT ENVIRONMENT ENGINEERING
2012年
2期
197-200
,共4页
环路热管%平板蒸发器%热性能%临界热载荷
環路熱管%平闆蒸髮器%熱性能%臨界熱載荷
배로열관%평판증발기%열성능%림계열재하
loop heat pipe (LHP)%flat evaporator%thermal performance%critical heat load
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
作為一種新型的熱控元件，環路熱管依靠其可靠性高、傳熱能力彊和等溫性好等特性，能夠在小溫差、長距離的情況下傳遞大量的熱量，因而被廣汎地應用于衛星、飛船及電子產品等的熱控。特彆是具有平闆蒸髮器的微型環路熱管具有很廣闊的應用潛能。文章建立瞭環路熱管運行的熱力學和動力學模型，在此基礎上用C++程序語言設計瞭相應程序，對某給定環路熱管進行瞭熱力特性計算。研究錶明，蒸髮器內部的壓力降在環路總壓降中佔主導地位
작위일충신형적열공원건，배로열관의고기가고성고、전열능력강화등온성호등특성，능구재소온차、장거리적정황하전체대량적열량，인이피엄범지응용우위성、비선급전자산품등적열공。특별시구유평판증발기적미형배로열관구유흔엄활적응용잠능。문장건립료배로열관운행적열역학화동역학모형，재차기출상용C++정서어언설계료상응정서，대모급정배로열관진행료열력특성계산。연구표명，증발기내부적압력강재배로총압강중점주도지위
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.
