轻型柴油车排放特性与机动车比功率分布的实例研究

,,,.[J].,2005,25(10):1306-1313PANHansheng,CHENChanghong,JINGQiguo,etal.Acasestudyoftheemissioncharacteristicsoflight2dutydieselvehicleandthedistributionofvehiclespecificpower[J].ActaScientiaeCircumstantiae,2005,25(10):1306-13131,1,3,1,1,1,2,1,2,2,2,2,MattBarth3,NickNikkila311,20023321,20023731,,:2005203209:2005206210:2005207202:(DrivingCondition).SensorsSEMTECH2D2.,231183917km.,(VSP).,NOx,COTCNOx(VSPbin).VSPbin-2020kWt-1,50%-31kWt-1.VSP.VSPVSPbins.,.:;;SEMTECH2D;:025322468(2005)1021306208:X701:AAcasestudyoftheemissioncharacteristicsoflight2dutydieselvehicleandthedistributionofvehiclespecificpowerPANHansheng1,CHENChanghong1,3,JINGQiguo1,HUANGCheng1,HUANGHaiying1,WANGHaikun2,LILi1,ZHAOJing2,DAIYi2,LINHongyi2,WANGShaojun2,MattBarth3,NickNikkila311ShanghaiAcademyofEnvironmentalSciences,Shanghai20023321ResourcesandEnvironmentalEngineeringInstitute,EastChinaUniversityofScienceandTechnology,Shanghai20023731UniversityofCalifornia,Riverside,CA,USAReceived9March2005;receivedinrevisedform10June2005;accepted2July2005Abstract:Tostudyhowtheintensityofvehicleoperationimpactsvehicleemissions,theconceptionofvehiclespecificpower,whichhasstrongerrelationshipwithvehicleemissions,isintroduced.Twolight2dutydieselvehicleswerechosentodoroadtestsinShanghaiusingSEMTECH2D,aninstrumentprovidedbytheUSSensorsCompany.Thetestedroadsincludearterialroad,residentialroadandhighway.Thetotallengthoftestedroadsforthetwovehiclesis3118and3917kmrespectively.SecondbysecondVSPvaluesarecalculatedandtherelationshipamongfuelconsumptions,airPfuelratio,theconcentrationsofpollutantsandVSPisstudied.ThedependenceofNOxemissionsonVSPisbetterthanonacceleration.AndthedependencesofCO,HC,NOxemissionrateandfuelconsumptiononVSPareverysimilarforthreedifferenttypesofroad.FromthetestitcanbefoundthatthedistributionrangeofVSPbinsismainlyfrom-2020kWt-1,amongwhichmorethan50%isbetween-3and1kWt-1.Furthermore,thehighemissionsarefastenedonthehighVSPbins.AppliedwiththeequationofemissionratesandthedistributionofVSPbins,vehicleemissionscanbepredicated.Andtheequationofemissionratescanbeimprovedinfuturebecauseofthevariability.Keywords:VSPBin;LDDV;SEMTECH2D;on2roademission:(No.00138.07):(1979),,(),E2mail:[e-mail];3()Foundationitem:ShanghaiSustainableEnvironmentandTransportIndicators(No.00138.07)Biography:PANHansheng(1979),female,Engineer(master),E2mail:[e-mail];3Correspondingauthor2510200510ActaScientiaeCircumstantiaeVol.25,No.10Oct.,2005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,(,2000).EPAMobile(USEPA,2000)EMFAC(USCARB,1996),,,,(Sawyeretal.,1998).,Jos(1999a;1999b)(VehicleSpecificPower,VSP),(DrivingCondition).:;;;.,(Brittetal.,1998).Jos(1999a)VSP,,IPM(P).Tao(2003)Jos,VSPNH3.Constance(2003),VSP,.Chris(2002)MOVESVSP,COTHCNOxCO2.ISSRC(2004)VSPIVEM,.,VSP,VSP.(Ihabetal.,2005).,,(WRI)EPACE2CERT,,.1(Measurementsystemandtestingmethod)1112,2a,1.2004102225.1(GPS)1GPSFig.1GPSdataoftestingroute703110:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1Table1BasicinformationoftruckforemissiontestPkgPkgPkWPkm147552420,BJ5027V2SD5572002212198602255052495JX93Q157200321290273.,1(a),3118km;2(b),3917km.,..1122,SEMTECH2D(SensorsEmissionTechnology2Diesel,Sensors),,,(NDIR)COCO2,(NDUVR)NONO2,(FID)THCO2.GPS,,.1Hz.,(FitzpatrickContainer),.2Fig.2Flowchartofthetestsystem113(VehicleSpecificPower,VSP),(Frolling)(FAerodynamic)(EK)(EP)(Finternalfriction).,(Jose,1999a):P=ddt(EK+EP)+Frollingv+FAerodynamicv+Finternalfrictionvm=ddt12m(1+i)v2+mgh+CRmgv+12aCDA(v+vw)2v+Cifmgvm=V(a(1+i)+gs+gCR)+12aCDAm(v+vw)2v+Cifgv(1),P(kWt-1);m(t);v(ms-1);a(ms-2);i(),;hGPS(m);s(),P;g(ms-2);CR();CD();A(m2);a(kgm-3);vw(ms-1);Cif().,Jose(199a):i011,g9181ms-2,CR010135,a11207kgm-3(20),CDAPm010005,vwCif,(1):P=v(111a+9181s+01132)+0130210-3v3(2)2(Testresults)211250696094,COTHCNOx.803125©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1,3.2314kmh-1,6619kmh-1,1917%;2317kmh-1,6814kmh-1,1118%;2119kmh-1,7712kmh-1,2710%.31Fig.3TypicaltypeofrawtestingdataforLight2dutyvehicle1onarterialroad212(2),.1,.42a,,-2020kWt-1,(Jose,1999a).-10-3kWt-1,,0183Lh-1.,,9126Lh-1.42b,,1241442517,,,,,.,,30kWt-1,.213,-4030kWt-118,4kWt-1(Bin)(ISSRC,2004),,2.52COTHCNOx.903110:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.41Fig.4Fuelconsumption,airPfuelratio,vs.vehiclespecificpowerforlight2dutyvehicle1testedonthehighway,.2,2,-4030kWt-1,-305kWt-1,3.(5178Lh-1),1418kWt-1,1213;,011431ms-2.COTHC,2226kWt-1,0101101008gs-1,416310;,-40-30kWt-1,3,,,.NOx1822kWt-1,01044gs-1,811,.5222Fig.5Fuelconsumptionandemissionvs.VSPbinsforlight2dutyvehicle2testedondifferentroads013125©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3(Analysisanddiscussion)311VSP62a62b1NOx.2,2NOx,-2020kWt-1,NOxVSP,,017082;2NOx,012089.Britt(1998),,.,,.62aNOxVSP,-200kWt-1,;020kWt-1,NOxVSP.5,VSPbin.,VSPbins:Ri(P)=AP2+BP+C(3),Rii,P,ABC.1,NOxRNOx,A11902,B691359,C556149..61NOxFig.6SecondbysecondNOxconcentrationvs.vehiclespecificpowerandaccelerationforlight2dutyvehicle1testedonhighway312VSPbin712,2.,VSPbin-31kWt-1,51%50%.-21ms-2,,