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X(,200030),,,Performanceanalysisoftranscriticalcarbondioxidecarair-conditionerAbstractAmathematicalmodeloftranscriticalcarbondioxidecarair-conditionerwassetupinthispaper,whichwasverifiedbypublishedprototypeexperimentalresults.Withthehelpofthismodel,theinfluenceofworkingconditionvariationaswellassuctionheatexchangeontheperformanceofthetranscriticalcarbondioxidecarair-conditionerwasanalyzed.Theresultsofthispapercanbeusedtoinstructdesignandimprovementoftranscriticalcarbondioxideautomobileair-conditioner.Keywordscarbondioxide,carair-conditioner,performanceanalysis,model.1,,,,,,,,,COP,,,,,,,,,,1,2,3,4,5,6127120013X([2000]65)(99QF14014)1,,,,2.1mr=sVn/(60vs)(1)W=mr(hoc-hic)/s(2)V,n,vs,hoc,hic,,,ss[4],s=0.994451-0.1079870(pd/ps)0.714,s=0.976728-0.0921418(pd/ps)0.7142.2,,,,[1],,Q=(kF)eTem=mr(hoer-hier)=ma(hiea-hoea)(3)hier,hoer,hiea,hoea,ma,(kF)e,Tem,2.3,[1],,,,Qg=mr(higr-hogr)=ma(hoga-higa)=(kF)gTgm(4),g2.4,,,2,,2Qs=mr(hish-hosh)=mr(hosl-hisl)=(kF)sTsm(5)1(kF)s=1ashFsh+1asloFsl+ln(rio/rii)2l(6)o=(Fsl1+Fsl2f)/Fsl(7)f=th(mh)mh(8)m=2sl,sl,h=roi-rio,Fsl1=rioL/3,Fsl2=2hL,Fsl=Fsl1+Fsl2,,roi,rio,rii:s8120013,l,h,f;i,o,,2.5,,2.63,,,1,32.7Boel2ter-Dittus:Nu=0.023Re0.8Prn(9)n0.3,0.4[7][2]AppendixB,[6],,,1.5,2.3,[5]11-3/8ReSt3,ACRC[4],,1-8[4]M3,I19,I6,I13,M10,M5,I17,I11,Q3.5%,COP3.0%tevap3.4,Teao4.44,n=1800rpm,teai=26.7,Veai=7.08m3/min,tgai=43.3,,:n=3000rpm,Vgai=35.4m3/min;n=1800rpm,Vgai=26.9m3/min;n=950rpm,Vgai9120013=22.7m3/min1Q/KwCOPTevap/Teao/14.6501.538.812.94.6721.598.312.823.5712.817.09.93.4052.765.39.232.7981.5914.116.82.7951.5713.717.542.7151.854.37.52.6241.844.88.654.8871.93-1.23.44.5871.860.85.364.3041.431.55.74.7221.472.16.572.2291.693.66.32.2901.764.17.582.7461.894.16.82.7802.017.511.24COP,,,,,COPCOP,COP,,,COP(a)(b)COP4(n=1800rpm,teai=26.7,Veai=7.08m3/min)5,,COP,COP,COP,(a)(b)COP5(n=1800rpm,Veai=7.08m3/min,teai=43.3)02200136,,;COP,,(a)(b)COP6(teai=26.7,Veai=7.08m3/min,tgai=43.3),COP,,,,COP,,,,35COP,,COP,,,5,,,5K,,,1,1.5m22Q/KwCOPTevap/KTeao/K14.6501.53282.0286.11.2120.44295.5296.723.5712.81280.2283.12.9772.38281.4283.732.7981.59287.3290.01.2880.77295.2296.142.7151.85277.5280.72.1471.49282.6283.554.8871.93272.0276.62.9141.23282.0283.964.3041.43274.6278.92.9320.98281.8283.872.2291.69276.8279.51.4481.16283.9284.182.7461.89277.3280.02.2431.54277.3279.4,,,COP1220013,1.0m,1.5m,2.0m,33npm9501800m3/min22.727.032.243.326.726.7m3/min7.087.08(%)4040[3]787COP,,COP8COP6,,,:1),;2),COP,COP;3),,COP,COP,COP;;4),,;COP;5),COP22200131.,,..,2000(2):7-132.WangHandTouberS.,Distributedandnon-steadystatemodellingofanaircooler,intJRefrig,1991,Vol14:98-1113.BoeweD,YinJ,ParkYC,BullardCW,etal.TheroleofsuctionlineheatexchangerintranscriticalR744mobileA/Csystems.SAETechnicalPaperSeries,1999:1-84.YinJ,ParkYC,BoeweD,etal.ExperimentalandmodelcomparisonoftranscriticalCO2versusR134aandR410Asystemperformance.JointMeetingoftheIIR,sectionBandE,1998:331-3405.KaysWM,LondonAL.,,...19976.ASHRAEHandbook:Fundamentals,1989:6.1-6.77.ASHRAEHandbook:Fundamentals,19812001716,22,2001,:200722,3,;;,;;33;12,,,:,;;;,,3220013