设计工况下风机盘管空调系统选型的校核计算

第14卷第2期2006年4月安徽建筑工业学院学报(自然科学版)JournalofAnhuiInstituteofArchitecture&IndustryVol.14No.2Apr.2006:20051202:(1959-),,,王晏平,黄镭,曹华歆(,230022):,();,,,,:;;;:TU831:A:10064540(2006)0207904CheckingcalculationtypeselectiononthefancoilunitssystemindesignconditionsWANGYanping,HUANGLei,CAOHuaxin(DepartmentofEnvironmentalEngineering,AnhuiInstituteofArchitecture&Industry,Hefei230022,China)Abstract:Therationalselectionofthefancoilunitforcentralairconditioningsystemshasaprinciplethatcoolingloadandtheairvolumeflowshouldmeetthedemandunderthedesignedworkingconditions.Theperformanceoffancoilunitfortheuseofdifferentinstallationsshouldbediscriminated.Withtheidgraphanalysisandselectionandcalculationoffancoilunitssystem,aprimarystudyontypeselectionoffancoilunitssystem,withtheerrormarginassurancethattheperioddesignstheoftheworkconditionandstandardworkconditioninthecertainerrormarginscopeinside,makechoosethetypesatisfiesthedesignrequest.Keywords:fancoilunit;typeselection;theschoolcalculatestocalculate;idgraphanalysis,,KTV,,,(),[1,2],,[3~5]11.1(1),,,(2),,(3);1.2,GBJ19-87,,,[6]1.3JB/T4288-91,,,,(,),,,,,[7,8]1.4(1),,,,(2)27!,19.5!,7!,5!,,,,,;,,,,(3),,,,a=1.10;,50!~60!,,,a=1.15;,,,a=1.2022.1,,:25!,60%,Q=6462W,W=1.619kg/h=0.45g/s,GW=240m3/h,(),,:,tR=25!,=60%R,iR=55.46kJ/kg;R=Q/W=14360kJ/kg=95%,M,iM=44.83kJ/kg;W;R95%,NG=Q/(iR-iM)=0.6874kg/s=1914m3/hGF=G-GW=1674m3/h=0.53475kg/s,mm=GW/G=(iM-iF)/(iN-iF)(1)iF=(iM-miN)/(1-m)(2)FiF=43.36kJ/kg,,Q=QF=GF(iR-iF),Qx=Q-500W=5.337kW12.22.2.1选型,,80安徽建筑工业学院学报(自然科学版)第14卷1:,FPXX:FP12.5,():27!19.5!,7009W5486W,14L/min,1250m3/h,QF∀Q∀F=G∀F(i∀R-i∀F)(3)(3)i∀F=i∀R-Q∀F/G∀F=38.23kJ/kg,90%,2,1221R2719.515.6749.8511.240.8717.9955.94F14.4713.4912.85909.340.82614.9938.232RFR2711.24F14.479.3493361250(27!19.5!12L/min)78.3%,fc=11520kJ/kg(4)RFfc,90%(98.5%)2.2.2校核,,,,i1/i2=iN/iM(5),i1,iN,;i2,iM,iN=55.9kJ/kg,(5)iN=iMi∀F/i∀R=38.26kJ/kgQF=GF(iN-iM)=7.04kWfc=7537kJ/kg,(4)66.8%,Q∀x=4.703kWQFQ,Q∀XQx:FP12.5,,,,3,,,,,,1.[M].:,2002.2.[M].:,2000.3.(2):[J].,2004,34(9):54-61.4,.[J].,2000,30(6):83-85.(91)81第2期王晏平,等:设计工况下风机盘管空调系统选型的校核计算(2),,,,,,(3),,,,,,,;,(4),,,,,,(),,,,,1.[M].:,2002.2.[M].:,2001.3.[M].:,2002.4.[M].:,2004.5.[M].:,2002.6,,.[M].:,2005.7.[M].:,,2002.(81)5,.[J].,2004,34(3):77-79.6EnglanderSL,NorfordLK.SavingfanenergyinVAVsystems-part1:Analysisofavariablespeeddriveretrofit[J].ASHRAETrans,1992,98(1):3-18.7,,,.[J].,2005,24(1):51-54.8HartmanT.Terminalregulatedairvolumesystems[J].ASHRAETrans,1993,99(1):791-800.91第2期姚传勤:运用决策树法进行建设工程投标决策