›› 2015, Vol. 35 ›› Issue (3): 44-.doi: 10.3780/j.issn.1000-758X.2015.03.006

Previous Articles     Next Articles

NumericalSimulationofElectrolyteMovinginNickelHydrogenBatteryofSatellite

ZHOUZhicheng,LIFeng,HUANGHua,XUHangyan,TANLixin   

  1. (1ChinaAcademyofSpaceTechnology,Beijing100094)(2TianjinInstituteofPowerSources,Tianjin300384)
  • Received:2015-02-05 Revised:2015-03-04 Online:2015-06-25 Published:2015-06-25

Abstract: Athreedimensionalnumericalmodelofanindividualpressurevesselwasdevelopedbasedonthe80AhnickelhydrogenbatteryusedforGEOcommunicationsatellites.Themodel,includingthemaincomponentsofabatteryincludingthebatteryshellandelectrodestack,wasutilizedtosimulatethetransientflowfieldoftheelectrolyteunderzerogravitycondition,byusingthecomputationalfluiddynamics(CFD)technology.Thecomparisonsofthesimulationresultswithdifferentboundaryconditionsshowthattheflowvelocityoftheelectrolytefromshelltotheelectrodestackwasdecidedbythewettabilityoftheelectrolyte.Addingroutesfortheelectrolyteflowingfromthebottomacmeandtheupperacmetotheelectrodestackcanimprovetheperformanceofthenickelhydrogenbattery.

Key words: Nickelhydrogenbattery;Electrolyte, Contactangle, Computationalfluiddynamics;Satellite