喷水涡旋空气压缩机工作特性的研究

38920049JOURNALOFXIANJIAOTONGUNIVERSITYVol.389Sep.2004,,(,710049,):,,.,.:60kg/h,012MPa,,;,3000r/min,;,,210,40K;3%.:;;:TH45:A:0253-987X(2004)09-0887-04PerformanceStudyofWater2InjectionScrollAirCompressorZhaoYuanyang,LiLiansheng,ShuPengcheng(SchoolofEnergyandPowerEngineering,XianJiaotongUniversity,Xian710049,China)Abstract:Byconsideringthecharactersofthewater2injectionscrollcompressor,athermodynamicmodelofthewater2in2jectionscrollaircompressorwasdevelopedusingtheconversationsofenergyandmassequationsandtheequationsofthestate.Onbasisofthismodel,thesimulatedresultswereanalyzedwithfocusontherelationshipoftherotationspeed,watermassflowrate,powerconsumption,anddischargetemperature.Itisindicatedbycalculationandexperimentsthatthetestedcompressorpowerapproachestheisothermalpowerundertheconditionstudied.Thevolumetricefficiencyin2creaseswiththeincreaseofthecompressorspeed.Buttheinfluenceofthespeedonthevolumetricefficiencydecreaseswhenthespeedishigherthan3000r/min.Thedischargetemperaturedecreasesasthewatermassflowrateincreases.Comparedwithadiabaticprocess,thedischargetemperaturereducesmorethan40Kunderthedesignedpressureratio.Thepowercausedbythewaterinjectionislessthan3%ofthecompressorindicatedpower.Keywords:scrollcompressor;waterinjection;isothermalcompression[1],,.,.,.,.,,.,(PEM)[2,3].,PEM.,,,:2004-03-11.:(1978),,;(),,,.:(104211);(DFXJTU2003-6).©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved..1,.1.2.1,2,,1,,.122.1.,:(1),;(2),;(3);(4).,[4,5],dpd=1vg(5hg5vg)T-(5hg/5Tg)v(5p/5vg)T(5p/5Tg)vdvgd1-1vg(5hg/5Tg)v(5p/5Tg)v-1Vgdmg,ind(hg,in-hi)+dQgd1-1vg(5hg/5Tg)v(5p/5Tg)v(1)dmgd=dmg,ind-dmg,outd+dmvd(2)dTld=1ml1cldQld+Tl,indml,ind-Tldml,outd-Tldmld(3)dmld=dml,ind-dml,outd(4):glv;inout.2.2,,.,,,.,,(1-m)W=mlcl(T0-Tl)(5):m;cl;Tl.,T1,macp(T2-T1)=mlcl(Tl-T2)(6):ma;cp;T2.,,,m.()dQ=mr+(Ti-Ti+1)clmi(7):r;mii.2.3.,,.,,,Pl=m(pd-ps)(8):m.,88838©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,P2=1Vi(pi+1-pi)(9):;Vii;p.3,600cm3/r012MPa.3.1,[6],Nis=maRgTslnpdps/m(10)260kg/h.,,,.,;,,.2360kg/h.3,.1000r/min3000r/min,8718%9414%;3000r/min,,,.,,,.,,.33.243000r/min60kg/hp-V,,,.53000r/min.210,363K,5.,,.,.4p-V3.3,160kg/h.1,9889,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3%.1/rmin-1100030005000/W63918921111203607194/W117611761176/W10181491028712754(1),,.,3000r/min,.(2),60kg/h..,012MPa,40K.(3)3%.:[1].[M].:,1998.[2]ZhaoYuanyang,LiLiansheng,ShenJiang,etal.Researchonoil2freeairscrollcompressorwithhighspeedin30kWfuelcell[J].AppliedThermalEngineering,2003,23(5):593-603.[3]LaiCF,HuangA,LiangK.Thedevelopmentofoil2lessscrollcompressorsusedforfuelcells[A].Proceedingsofthe4thInternationalConferenceonCompressorandRefrigeration[C].Xian:XianJiaotongUniversityPress,2003.241-249.[4]ChenY,HalmNP,GrollEA.,etal.Mathematicalmodel2ingofscrollcompressors2partI:compressionprocessmodeling[J].InternationalJournalofRefrigeration,2002,25(6):731-750.[5]ParkYC,KimY,ChoH.Thermodynamicanalysisontheperformanceofavariablespeedscrollcompressorwithrefrig2erantinjection[J].InternationalJournalofRefrigeration,2002,25(8):1072-1082.[6],.[M].:,1987.()[](,710049,),,,,,.,,,.,,.09838©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.