二氧化碳汽车空调系统应用研究进展(一)———系统结构、性能

()X,CFC12HFC134a1CO2,192030,CFCs,CO2,,CO23111,Perkin,,,2070,CFCHCFCHFC134a,,,,1994BMWDAIMLERENZVOLVODanfossValeoRACE,,2003,,HFC134a,CO2:(1)ODP=0,GWP0(2)r,(0NH31158,R12R2281255112)(3)(0CO2NH3512%,R122318%)(4)K=1130,=PH/P0215310,,(5)(6),,,,,,2CO2,,Perkins,,30CO2(3111),COP=q0/W,q0,,W,Perkins,052000284X:19961011CO2,,12090,NTH-SINTEF,1,()P2,p-hf-a,,()COP,,b-c,hb-hc=hf-he,,,,,,a,,,(1b),,3,COPHFC134a01350146[1],CFC12HFC134a(1):(1)(CP),(2),,(3),(4),(5),,CFC12HFC134a1()HCFC-22HFC-134aCO20109901092011130120012101111180134024302115141497161285101293159261459188918915131111124162NTH-SINTEFCO2CFC12215Vol.28,No.4,2000FLUIDMACHINERY2NTHSINTEFCO2CFC12CO2,5,150cm3,26cm3,Danfoss(815mm,48,6)200330mm,67mm,417m2014m2(416mm,60,5)200325mm,67mm,519m20121m2(819mm,50,3)430570mm,34mm,813m2017m2(419mm,69,3)430565mm,34mm,1111m20141m22NTH-SINTEF3CO2CFC12,,CFC12,CFC12,CFC12,3NTH-SINTEFCO2A1110m/s,700r/min(R12),640r/min(CO2);B1215m/s,1740r/min(R12),1600r/min(CO2)4KonvektaCFC12[2]BOCKFKX3,,28mm,49mm,EGELHOF,,10mm,,,CFC123UIUC4KONVEKTAHFC134aHFC134a,252000284,,,HFC134a3UIUCHFC134aQ(kW)COP(g/s)()()1R134a41149115801631418141901590156711110CO2215481159016668131218017601792171102R134a215481182013181159170164CO22153211930125341581401573R134a111072138010792176180124CO21114931170107121251801164411,,COP,,5(a),q,WCOP5(b)(PH)COP,PH,,COP,8MPa(25)11MPa(45)5CO2COP4126(),COP6COP(40)10,HCF22HFC134aCOP40%,COP70%413UIUCHrnjak,,,«18117«8131115[15]COP77,35Vol.28,No.4,2000FLUIDMACHINERY,10%,COP25%414,PurdueRobinson,60%,35%[3]7COP11NoSLHX;21SLHX110Counter;31SLHX110Parallel;41SLHX115Counter;51SLHX210Parallel;61SLHX210Counter415,,CO2,,CO2,,,44(MPa)15713812121617124215305(1),CO2,,,(2)CO2,,CO2,,,CO2,,(3),COP,1,,..:,19902MichaelSonnekalb,JugenKohler.Airconditioningu2nitusingCO2asrefrigerantinstalledinabus.Interna2tionalCouferenceonOzoneProtectionTechnologies,Wahington,1996.ConferenceProceedingS:8258343DouglasMetal.EfficienciesoftransercricalCO2cycleswithandwithoutanexpansionturbine.Int.J.ofRe2frig.,1998;21(7):577589:,,29,,200030452000284pull-outdesignandceramicbearingisintroducedbasedonanoperatedatpumpingstationTypeSEZ2000-1625VRpumpwithadjustableinletguidevane.Keywords:largesizemixedflowpump,character2isticcontrol,adjustableinletguidevaneKJZ-2on-lineMonitoringSystemforMain-faninCoalMineChenShiweietal(40)TheKJZ-2on-linemonitoringsystemformain-fanincoalmineareintroduced.anditsprinciple,constitutesandfunctionarediscussed.Keywords:main-fan,on-linemonitoring,com2munication,performnceImprovementonSavingEnergyforHigh-PressureContrifugalFanLinYuanquan(43)Theinfuenceofinner-leakagelossontheefficien2cyofhigh-pressurecentrifuglafanareanalyzed.Anewmethodtoreduceinner-leakagelossisintroduced.fur2thermore,amewwaytosaveenergyforhigh-pressurecentrifugalfanisdiscovered.Keywords:savingenergy,high-pressurecentrifugalfan,inner-leakagelossImprovementontheDesignforthePistonUnitofTypeLW-10/8Oil-FreeAirCompressorYuKeyingetal(44)AccordingtotheproblemexistingintheuseoftypeLW-10/8oil-freeaircompressor,wehavebroughtforwardinterrelatedbasisofedsigncalculationandac2complishedtheimprovementonthedesign.Thepracticeprovesthatthepracticalresultafterimprovementisverygood.Keywords:oil-freeaircompressor,pistonunit,improvementofthedesignCalculationandAnalysisofGAXCyclewithTFE/NMPasWorkingFluidsZhangLisongetal(47)ThermalcalculationsofGAXcyclewithTFE/NMPasworkingfluidsareconductedonthebaseofabriefaccountonthecycle,acomparisonandanalysisbetweentheresultsofcalculationandresultspreviouslyreportedintheliteraturearemade.Keywords:GAXcycle,absorptionrefrigeration,workingfluidApplicationStudyStatusoftheCO2MobileAir-ConditioningSystem(PartI)SystemConfigu2rationandPerformanceandItsOptimizationChenJiangpingetal(50)TheapplicationstatusofCO2mobileair-condi2tioningsystemissummarizedherein.Thesystemconfigu2rationandthermo-dynamicdesignisdiscussed.ThePartIfocusedontheimprovementoftheCO2systemconfigurationanditsperformancecomparedtotheHFC134asystem.Keywords:Automotiveaircondition,Carbondiox2ide,refrigerantreplacement.StudyonAutomaticallyAbstractingGasSystemofLiBrAbsorptionChillerHuangKunrongetal(55)TheprovisionofautomaticallyabstractinggasofLi2BrAbsorptionChillerarestudiedandanalyzed,andTheprocedureofdesignandcalculationofconstructionisgiven.Inpracticeprovisionofautomaticallyabstractinggasdesignedbythisprocedurehashadagoodresult.Keywords:LiBrabsorptionchiller,provisionofau2tomaticallyabstractinggas,non-condensedgas,drainagedriverPredictionofViscositiesforMulticomponentMixturesZhuGangetal(61)Unifiedvisconsitymodelbasedoncorrespondingstatesprinciplewasusedtopredictviscositiesofnitrogenandhydrocarbonmixtures.Byintroducingmixingrule,onlylimitedthermodynamicdataofeachcomponentswererequiredasinputandthecalculationprocedurewassimplified.Comparisonsbetweencalculationandexperi2mentaldataofbinarylighthydrocarbonmixturesandmulticomponenthydrocarbonmixtureswerepresented,averageabsoultedeviationswere4.13%and2.13%re2spectively.Significantimprovementinaccuracywasob2servedascomparedwithotherviscositymodel.Keywords:viscosity,corresponding