›› 2017, Vol. 37 ›› Issue (1): 66-74.doi: 10.16708/j.cnki.1000-758X.2017.0009

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Impactanalysisofloopslayoutonheatdissipationpotentialofmannedspacecraftradiator

 JIN  Jian*, WANG  Yu-Ning   

  1. InstituteofMannedSpaceSystemEngineering,ChinaAcademyofSpaceTechnology,Beijing100094,China
  • Received:2016-06-28 Revised:2016-10-18 Online:2017-02-25 Published:2016-11-24

Abstract: Anunsteadynumericalmodelforheatdissipationpotentialofmannedspacecraftcylinderradiatorwithtwoparallelloopswasdeveloped.Basedonthismodel,impactofradiatorloopslayoutwithsameandreverseworkingliquidflowingdirectiononradiatorheatdissipationpotentialunderdifferentparameterswasanalyzed,includinglooplength,workingliquidfluxandworkingliquidtemperatureatloopentrance.Accordingtothecalculationresults,onthepremiseofthesameplateareaandlooplength,loopslayoutcouldbringnonignorabledifferenceofheatdissipationpotentialofradiators.Asthelooplengthislonger,workingliquidtemperatureatloopentranceishigher,orworkingliquidfluxisless,heatdissipationpotentialofradiatorwithsameworkingliquidflowingdirectionisbetterthanthatofradiatorwithreverseworkingliquiddirection.Thedifferenceofmaxheatdissipationpotentialcouldbeupto19.5%,andthedifferenceofminimumheatdissipationpotentialcouldbeupto16.7%.

Key words: mannedspacecraft, radiator, thermalcontrolloop, workingliquid, heatdissipationpotential