供热机组分项经济指标的循环函数法计算模型研究

:2001207231:(19772),,,,,(,,210096):,,:,:;;:TK212.4:A:100125884(2002)0320155202AlgorithmResearchofPerformancesModelforCogenerationTurbinebyCycleFunctionsLILei2lei,WANGPei2hong,JIAJun2ying,JINXu2ying(SoutheastUniversity,Nanjing210096,China)Abstract:Byusingcyclefunctionmethod,economyperformancesmodelforCogenerationturbineareestablishedandeffectofsav2ingenergyisevaluatedinthispaper.BasedoncharacteristiccoefficientandequationofCogenerationturbine,newdistributionmethodofheatratebetweenheatingandpowergenerationisputforward,whichleadstothenewmodelofeconomyperformances.Acomparisonbetweenconventionalmodelandnewmodelismadeandshowsthatthedefinitionsofnewperformancesareclearandcanencourageusersnotonlyinpowerplantbutalsoinheatingtoimprovetheeffectofsavingenergy.Keywords:cogeneration;performance;economic1[1],,tp(e)bstp(h),,()(),,CC50290/42/15,[2,3],,21,D0DhDcDr;h0hhhrhchchfwhrQtp,kJ/h;Qh12.1Qtp=D0(h0-hfw)bpkJ/h:Qtp(h)=Qhbp=Dh(hh-hh)D0(h0-hfw)QtpkJ/h443Vol.44No.320026TURBINETECHNOLOGYJun.2002©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(h)=Dh(hh-hc)D0(h0-hc)QtpkJ/hQtp(e)=Qtp-Qtp(h)kJ/htp(h)=QQtp(h)=QhhsQtp(h)bstp(h)=Bstp(h)Q/106=106q1tp(h)=34.1tp(h)kg/GJtp(e)=3600PeQtp(e)qtp(e)=Qtp(e)Pe=3600tp(e)kJ/(kWh)bstp(h)=Bstp(e)Pe=3600q1tp(e)=0.123tp(e)kg/(kWh),,,;,,,,2.2,:D0=dkPe+aTkDTD0dk,Pe,dkPe;aTk,aTkDT[2,3,4],Qtp(h)=aTkDTD0QtpkJ/hQtp(e)=dkPD0QtpkJ/h,,aTk,aTk,Qtp(e),dk,3CC50290/42/152,,6[5],355t/h,0,200t/h,2CC50-90/42/153.1:9MPa,535,3475kJ/kg,962kJ/kg,3071kJ/kg,4kPa,2356kJ/kg,120.6kJ/kg,0.983.2(1)1QtpkJ/h1013733562.51013733562.5Qtp(h)kJ/h602804090.9364918731.9tp(h)0.86241.42458636Qtp(e)kJ/h410929471.6648814830.6tp(e)0.4490952870.2844362993.3[3](2)3.433,3,;,,,,2dG(3)0.8577960.8577960.855704dG(6)0.8266070.8266070.824098k0.709060.709060.705184ak1.4103181.4103181.418069W0k943.9036943.9036941.4766Wk1331.2041331.2041335.079dk3.9379953.9379953.948188K2.7922752.7922752.784199n0k0.2539360.2539360.253281nk0.3581310.3581310.35917(181)65144©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:;;;,;,,,,,,,,(156)2dG(3)0.8577960.8577960.855704dG(6)0.8266070.8266070.824098dG(d)0.9872990.9872990.987108d0.0072470.0072470.009091Wt625.6436546.6616629.6997dt8.48689.7129788.480122kt0.4699830.4106520.471657n0t0.117830.1029550.117923nt0.1683160.1470670.169407aTk0.7656340.849310.76774ntk0.1944220.2156710.194454Dk49.1435249.1435247.72835c0.1384320.1384320.1344463QtpkJ/h1013733562.51013733562.51013733562.5Qtp(h)kJ/h437267199.4485055978438469720.7tp(h)1.2131429041.1261875431.209815809Qtp(e)kJ/h576466363.1528677584.5575263841.8tp(e)0.3201340110.3201340110.31930758341.,,,2.,:,;3.,,[1].[M].:,1995[2].[M].:,1988[3].-[M].,1992[4],.[J].,1999,14(5)[5].CC50-90/42/1550000[R].19861813:©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.