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  • Thermal performance of cylindrical Lithium-ion battery thermal management system based on air distribution pipe

    基于空气分配管的圆柱形锂离子电池热管理系统的热性能

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    标签: Lithium-ion battery Battery thermal management Air distribution pipe CFD modeling

    出版日期:2019

    杂志名称:International Journal of Heat and Mass Transfer
    卷号:131
    期数:Complete
    刊号:0017-9310
    出版日期:2019

    简介:Foratypicalaircoolingthermalmanagementsystem,theinletandoutletofairflowonbothsidesofthebatterymodulewouldincreasethetemperaturedifference.Inhere,anovelcoolingstrategybasedonairdistributionpipesisproposedforthecylindricalLithium-ionbatterymodule.Thethree-dimensionalcomputationalfluiddynamicsmodelofbatterymoduleisconstructedandvalidatedbytheexperimentaltests.Thethermalbehaviorofbatterymoduleandtheflowfieldofairhavebeenexploredusingnumericalsimulationsatdifferentdischargerates,andthentheeffectsoforificeparameters,inletpressureanddischargerateontheperformanceofaircoolingstrategyhavebeenanalyzed.Theresultsshowthatthemaximumtemperatureofthebatterymodulecanbeeffectivelyreducedbytheincreaseofinletpressureresultinginasignificantriseofpowerconsumption.Meanwhile,itdeclineswhenthediameterandnumberofrowsoftheorificeincrease,followingaminorriseinpowerconsumption.Whentheinletpressureis100?Pa,thediameteroftheorificeis1.5?mm,thenumberofrowsoftheorificeis5andthedischargerateis3C,themaximumtemperatureofbatterymoduledecreasesfrom325.9?Kto305.7?Kincomparisontothatundernoneaircoolingcondition.Inaddition,themaximumtemperaturedifferenceofbatterymoduleiswithin3?K.Whenthebatterymoduledischargeatthecurrentrateof4Cand5C,themaximumtemperatureofbatterymodulemaintainswithin313.15?K,butthetemperaturedifferenceslightlyexceedstheoptimalrangeat5Cdischargewhentheinletpressureis200?Pa,thediameteroftheorificeis1.5?mmandthenumberofrowsoftheorificeis5.Moreover,itisanefficientandapracticalcoolingstrategywithnoneedtomodifythearrangementofthebatterymodule.

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