StartupandOperatingCharacteristics ofCapillaryWickEvaporator

doi:10.3780/j.issn.1000-758X.2012.02.007

Chinese Space Science and Technology ›› 2012, Vol. 32 ›› Issue (2): 43-47.doi: 10.3780/j.issn.1000-758X.2012.02.007

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StartupandOperatingCharacteristics ofCapillaryWickEvaporator

LI Jin-Wang¹, ZOU Yong², CHENG Lin²

（1 NanjingResearchInstituteofElectronicsTechnology, Nanjing 210039）
（2 ShandongUniversity, Jinan 250061）

Received:2011-06-27 Revision received:2012-04-25 Online:2012-04-25 Published:2012-04-25

Abstract

Abstract: Theeffectsofporouswickporosityandheatsourcepoweronstartupand operatingcharacteristicsofcapillarywick evaporator(justlikealoopheatpipewithoutlinkingthevaporline)wasinvestigated.Theexperimentwascarriedoutwithout mixingtheeffectoftheworkingfluidandthecondenser.Theresultshowsthatthetemperatureoftheevaporatorwill fluctuateinsomecasesduringthestartupofthesystem.Theheatsourcepowerwhichmakesthetemperaturefluctuated decreasinglywiththeincreasingporosityoftheporouswick.Whenporouswickisthesame,temperatureiseasierto fluctuateanditwillbemuchseriouswith the biggerheatsourcepower.Thereasonforthetemperaturefluctuationisthatthe porosity of porous wick does notmatchwiththeoutsideparameters,suchastheheatcoursepower.

Key words: Porosity, Heat source power, Operating characteristics, Capillary wick evaporator, Loop heat pipe, Thermal control, Spacecraft

LI Jin-Wang, ZOU Yong, CHENG Lin. StartupandOperatingCharacteristics ofCapillaryWickEvaporator[J]. Chinese Space Science and Technology, 2012, 32(2): 43-47.

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StartupandOperatingCharacteristics ofCapillaryWickEvaporator

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