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
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.
