硕士论文-汽车空调系统性能优化

上海交通大学硕士学位论文汽车空调系统性能优化姓名：张彦丽申请学位级别：硕士专业：动力工程指导教师：陈江平;钱锐20090603I:2035073ABSTRACTIIAUTOMOTIVEAIRCONDITIONINGSYSTEMPERFORMANCEOPTIMIZATIONABSTRACTWiththeacutecompetitionofdomesticandoverseaautomotive,manufactoryplaymoreandmorefocusesonallkindsofvehicleperformance,WhileAutomotiveairconditioningperformanceisoneofthefocuses.First,alotoftestdataoftheformersystemandservicedataofonevehiclewereanalyzed,thenbaseonthenewprogramspecialty:thefrontendgrilledesignwhichaffectthecondenserperformancethecompactfrontinteriorpackagewhichaffectHVACModuleandevaporatorperformance.Attherestrictedpackageroom,trytoimprovetheairconditioningperformanceatthesametime,keepaneyeinmassandcost.Atthesametime,thefrontendairflowandbodyleakageeffecttoairconditioningperformance,includingboththeoreticalandpracticalwerealsoanalyzed.Inthispaper,mostoftheresearchwasbasedonbenchtest,systembenchtestandClimateWindTunneltestandairflowbenchtest.Someperformancetargetinsystemmatchingandevaluationwerediscussed.AfteroptimizationthenewHVACsystemcanmeettheprogramtargetinbothcomponentandvehiclelevel.Thebreathtemperatureafterthefirst20minutescanbereducedupto3~5°C.ThevehiclewiththeimprovedairconditioningsystemwasinproductionfromMarch,2007,thefeedbackfromcustomerisverygood,whichbringbotheconomicandsocialbenefittothecompany.ABSTRACTIIIKEYWORDS:automotiveairconditioning,performanceoptimization,climatewindtunneltest,vehicleairflow09630963096311.1[1][2];;;[3];2,8090,,(),,UGCatia3[4];1.2[1],,42,,,,,,,:(),,,,4,,(),,2011R134aTXV,1.320123451001.46CFD2007372.1J.D.PowerJ.D.Power1968J.D.Power228J.D.Power,””””J.D.PowerPPHPPH2.282.2.11Fig.1TheACsystemprinciple92.2.21234V5KDAC()V519852V5Fig.2TheInternalstructureofV5CompressorOldsmobileCalaisPontiacGrandmaBuickBuick3.010V5V5()V5[4]3V5Fig.3V5CompressorControlStructurefigureV5Ps—Pd—Pc—M1—PcM2—PsPsPdM1M211PsPdM1M2V5425%V5151cc6000rpm2.[6][7][8];[5]12:[9][10]:H[11][12][13]HH12345513QPnNNe142.2.3441Fig.4Theflowprocedureinairconditioningsystem115252Fig.5Theflowprocedureinairconditioningsystem2,5162.2.4,,,,,2.2.5,1,24%112V(m3/h)319396176Fig.6ThepressurecurveoforiginalACsystemcooldown,,26,,,40,,80kph,182()50kph1017.133.91323.550kph2012.827.710.820.480kph409.722.17.814.850kph6018.928.71724.380kph8013.624.61422.511016.731.216.525.0160273721.229.82.31.2.3.193.13350kph10132717.133.950kph20112412.827.780kph408259.722.150kph60182418.928.780kph80162313.624.6110162716.731.216012.9242033.23.2.13.2.1.1(1)217Fig.7theEvaporatorFlowPicture1238-7-8/8-7-848-7-8/8-7-8510-11/10-1143127%,27%,28%,3223840%0.4m3/h2.93bar57.217.7bar35412345kW6.97.57.57.227.42(Pa)1171178711692(kPa)137137989894mm276.3X228.6X88.9260X250X58263X235X55263X200X55241X245X55258CKD235216.3196.1196.1239.7239.7236.7(mm)150X75150X75150X75mm84.284.278(kg-cm)4.84.85.0(RPM)29002900272012V(A)202020.58,100%Fig.8TheBlowerNoiseComparisonchartMaxBlower100%OSA330%241/5-1/399Fig.9TheCondenserimprovementPlanPackagePicture16.18bar79.4C8.3C37.8C3.36m3/h61234(kW)10.411.10.28.3(Pa)80797880(mPa)0.1090.110.0930.1115-10-8-40.24m2215-10-7-50.24m2316-10-6-30.2092m2417-10-5-30.214m22510%31234V5V5V5V5303.4kPa282.7kPa282.7kPa1:1.145H21.75263.2.1.22672.93bar38C40%215.2bar5K90C,3.6m3/h468m3/h812.0C12.0C13.1C12C3.2.1.31.14V270Pa912.5%9(m/h)(m/h)(m/h)(m/h)630580651653450397493491450407518517223C1004mbar8V102810.100%+/-5%--24%26%25%25%-----28.5%24.8%25.5%21.2%28%24.2%25%22%.65%+/-5%35%+/-5%-15%14%14%16%11%12%9%9%18.8%11.7%14.3%13.6%10.4%9.1%7.1%7.1%(50%)17.8%17.1%16.3%16.8%18.5%8.5%7.5%7.5%20%+/-5%60%+/-5%20%+/-5%8%9%--16%15%13%13%26%9.2%8.3%18.3%15.6%11.9%12.8%23.9%9%8%118%117%12%12%24%.15%+/-5%40%+/-5%45%+/-5%8%7%--111%12%10%11%41%8.1%7.2%--12.6%11.7%9.9%9.9%40.5%7%6%10%10%9%9%49%25%+/-5%-75%+/-5%12%13%------75%12.8%12.8%------74.4%10.5%10.5%------79%293.2.1.40C82C0.6m3/h8V10Fig.10TheOriginalDesignHVACModuleTemperatureControlLinearityCurveTSDTemperatureSideTMD(TemperatureMiddle)1020C,306C1111Fig.11TheFinalDesignHVACModuleTemperatureControlLinearityCurve3.33.3.111116%31110.08kpa(m3/h)(A)(RPM)(m3/h)(A)(RPM)13V1,68010.52,150250017.52,15013V1,530.10.01,950145013.52,270(3,210)(20.5)-(3,950)(31)-(2)120.08kPam/skg/sPakg/skPakW56.737.9712.390283.301.017.0853.0759.597.9512.499316.720.997.8558.59123.3.2CFD[24][25]32[26]1313mm210056.7198471803824576mm235138.5303891713223406mm249856502363517047982CFD[27]GM123312Fig.12CurrentVehicleAirpressureDropCurveCFD13:CFD1984kg:50kph7.2%:40:651180.543kg/s10kW1.62kg/s8003413CFDFig.13CFDSimulationModels14kg/sm3/mkg/sm3/m0.5928.690.6230.550.5326.110.4019.680.8240.100.7637.050.8240.100.7637.051.1254.801.0350.221.1254.801.0350.2214CFD50kph35,3.41V5282.7kPaTGK2.0234364.14.1.1A3770%10-205%CFD4.1.214,3814Fig.14TypicalVentingSystemPicture4.1.34.2391580kph0.815mm15.919.0598.196.413.210.215.619.9(bar)17.318.01(bar)2.442.33(bar)1.852.0611.612.99.16.915.414.5kPa59264.3CFDCFD401515Fig.15TypicalVentingSystemPicture4.4?141(3.5kN)1(0.735kW)l21015%4.5425.15.1.11616Fig.16VehiclelevelAirFlowTestPicture4316Pa(m3/h)(m3/h)62.5208356125308525187.538265925045217(V)m3/h123191436112327/50%14371122571429612257/142