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1、摘要风速、蒸发器迎面风速、压缩机转速和系统充注量等工况因素对系统性能的影响,并提出相应优化建议。五、在上述仿真模型的基础上,利用VB建立了电动汽车空调系统设计选型与性能仿真软件平台,可完成设计计算与仿真计算,并可保存、输出。对于汽车空调设计人员有很好的实用价值。关键词:电动汽车,空调系统,微通道,平行流蒸发器,性能研究II万方数据上海交通大学硕士学位论文PERFORMANCESTUDYOFELECTRICVEHICLEAIR-CONDITIONINGSYSTEMBASEDONMICRO-CHANNELP
2、ARALLELFLOWEVAPORATORABSTRACTTheworld’sclimateproblem,environmentproblemandenergyproblemhavebecomeincreasinglyserioustoday;electricvehiclehasbecomethefuturevehicledevelopmentdirectionbecauseofitsadvantagesofzeroemission,lownoiseandhighefficiency.Sameasth
3、etraditionalfuelvehicle,electricvehiclealsoneedsair-conditioningsystemtokeepcomfortinthecar.Ahighefficientandenergysavingair-conditioningsystemisalsoessentialforelectricvehicle.Electricvehiclehasentirelydifferentsystemstructurewiththetraditionalfuelvehic
4、le,ithasnoenginetosupplypowersourcetotheair-conditioningcompressor,socompressoroftheelectricvehicleair-conditioningsystemisdrivenbymotordirectly.Duetothelimitedspaceofelectricvehiclepassengercompartment,arrangementofair-conditioningevaporatorisrestricted
5、seriously,whichrequiresevaporatorunitvolumetohavealargerheattransferrate.Tosolvethisproblem,doublearrangementofmicro-channelparallelflowevaporatorisadopted;thethesismainlyfocusesonthefollowingcontents:Firstly,establishR134aphysicalpropertiesrapidcalculat
6、ionmodelandmoistairphysicalpropertiesrapidcalculationmodel,solvetheprecisionandspeedofthecomputercall,putforwardmoistairphysicalpropertiesiterativecalculationlogic,anddeterminethestandardofevaporatordryconditionandwetcondition.Secondly,setupsteady-states
7、imulationmodelofelectricvehicleair-conditionsystemmaincomponents,includingscrollcompressormodel,thermostaticexpansionvalvemodelandrefrigerantpipemodeladoptinglumpedparametermethod;micro-channelparallelflowcondensermodelandmicro-channelparallelflowevapora
8、tormodelusingdistributedparametermethod.Consideringvoidfraction,establishIII万方数据摘要refrigerantchargemodel.Thirdly,carryonexperimentalstudyofthemicro-channelparallelflowevaporator,andverifytheaccuracyoftheabovetheoreticalmod