›› 2015, Vol. 35 ›› Issue (1): 43-50.doi: 10.3780/j.issn.1000-758X.2015.01.006

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PreliminaryDesignonNear-spaceAerostatforLongDurationandRegionalStationKeepingbyNaturalEnergy

WANGChao,YAOWei,WUYao,LYUXiaochen,MARong   

  1. (QianXuesenLaboratoryofSpaceTechnology,CAST,Beijing100094)
  • Received:2014-06-05 Revised:2014-09-12 Online:2015-02-25 Published:2015-02-25

Abstract: Thematerialandpowertechnologiesarethekeyproblemsandchallengestothenear-spaceaerostatsduringlongdurationandregionalstationkeeping.Themainreasonsarethesuper-heatandsuper-pressureandmaneuverabilityagainstthewindduringthestationkeeping.Anovelnearspaceaerostatwasproposedwhichmadeuseofthenaturalheatandthenearspacequasi-zerowindlayer.Theworkingprinciple,systemcomponentsandflightstrategyofthenovelaerostatwereintroduced.Byuseofthethermalmodelingandsimulationandtotalparameterdesign,thecouplingrelationshipofboththermalcontrolledparametersofthemaincellandthesuper-heatcapabilitiesduringdayandnightandthesizeofaerostatwereresearched.Theresultsshowthatthesuper-heatcanreachaboveof100Kduringdaytimeand20Katnightthroughthermalparametersoptimizationdesign.Thedesignresultsofthetotalparametersoftheconceptualaerostatweregivenforthesuper-heatrangingfrom20Kto80K.

Key words: Contrailcontrol, Quasi-zerowindlayer, Superheat, Preliminarydesign, Nearspace, Aerostat