地下车库通风能耗分析

吉林大学葛风华刘巽俊刘晔地下车库的能耗主要体现在通风系统上分析了地下车库通风能耗的构成,介绍了通风量的确定方法计算分析表明,采用变风量通风方式,根据车库内CO浓度控制通风量可以减少通风能耗能耗分析换气次数变风量地下车库EnergyconsumptionanalysisofventilationsystemsinundergroundcarparksByGeFenghua,LiuXunjunandLiuYeAbstractEnergyconsumptionofventilationsystemtakesthemainportionofwholeenergyconsumptioninanundergroundcarpark.Analysestheconstituentpartsoftheenergyconsumption.Presentsthemethodfordeterminingtheventilationrate.Calculatingandanalysingresultsindicatethatusingthevariableairvolumeventilatingmodebasedontheconcentrationofcarbonmonoxidecanreducetheenergyconsumed.Keywordsenergyconsumptionanalysis,airchanges,variableairvolume,undergroundcarparkJilinUniversity,Changchun,China0,,,,CO,CO,,,CO,CO,,!∀,,5~6h-1,80%~85%;5#[1]!∀6h-1[2],,,,,,14000m2,3m,80,6h-1,72000m3/h,60000m3/h,tr5#,-23#,tow-17#1.1Q1Q1=0.278Gc(tr-tow)(1)∃98∃暖通空调HV&AC2006年第36卷第3期,,196311,,,1300211129(0431)5935012Email:[e-mail]:20041207:20050117G,m3/h;c,1kJ/(kg∃#);,138kg/m31.2Q2Q2=Gp3600(2)p,Pa,800Pa;,85%1.31Q3Q3=KF(tr-tin)(3)K,316W/(m2∃#);tin1,#1.4Q4Q4=136304W1.5Q5,2940W(1167%10-4kg/s)[3],35%,35%,25%,5%(1h)14h-1[4],2min,Q5=80%14h-13600s/h%2min%60s/min%(35%+25%)%2940W=6585W1.6Q62W/m2,Q6=8000W11,1/W607685.7634509.8-16432013630.4-65858000/(W/m2)151.928.6341.083.4121,,1,,863W/m2,15192W/m2,2~3,937%,,,22.1COCO,,[5]CO02%10-3kg/s2.2!∀(TJ36&79),CO30mg/m3(24%10-6);60min50mg/m3(40%10-6)30min100mg/m3(80%10-6)10~20min200mg/m3(160%10-6)[6][7]CO:(WHO)15min87%10-6,60min25%10-6,8h9%10-6;HSE15min300%10-6,8h50%10-6;ASHRAE60min35%10-6,8h9%10-6,HSE8h50%10-6CO2.3dCd!=np-nC(4)CCO,mg/m3;!,h;npCO,mg/(m3∃h),np=M/V,MCO,mg/h,V,m3;n,h-1E,COC0,(4)dCd!=np+En(C0-C)(5)!,COCaCb,(5)np+EnC0-EnCbnp+EnC0-EnCa=e-En!(6)!∋(,CO,e-En!∋0,CbCO,(5)n=npE(Cb-C0)(7)4000m2,80,14h-1,2min,75%,CO3mg/m3,∃99∃暖通空调HV&AC2006年第36卷第3期np=MV=80%1.4h-1%0.2%10-3kg/s%2min%60s/min4000m2%3m=224%10-6kg/(m3∃h)n=npE(Cb-C0)=224%10-6kg/(m3∃h)0.75%(62.5mg/m3-3mg/m3)%10-6kg/mg=5.02h-13,,CO(1):0~!1np1,!1~!2np2n1,n2,1CO,C0=0,dC/d!=np-nEC,C1,!C,)CC1dCnp1-n1EC=)!0d!(8)C=np1n1E-np1n1E-C1e-n1E!(9)!=!1,COC2,C2=np1n1E-np1n1E-C1e-n1E!1(10),n2,!1~!,COC2C,)CC2dCnp2-n2EC=)!!1d!(11)C=np2n2E-np2n2E-C2e-n2E(!-!1)(12)!=!2,C=C1,C1=np2n2E-np2n2E-C2e-n2E(!2-!1)(13)CO50%10-6(625mg/m3),C2=625mg/m3,C1,C2,;,,C1=50mg/m30~!1,046h-1[4],np1=736mg/(m3∃h);!1~!2,14h-1,np2=224mg/(m3∃h)075!1,!2(10),(13),2,32!1!1/h0.150.250.350.450.550.650.750.85n1/h-10.470.891.151.201.291.351.353!2-!1!2-!1/h0.150.250.350.450.550.650.750.85n2/h-17.156.716.426.186.046.046.046.042,3,!1065h,!2-!1045h,n1,n2,!24Q1,Q21,n=6h-1:Q1/Q1∗=n/n∗(Q1∗n∗);:Q2/Q2∗=(n/n∗)3(Q2∗n∗)046h-1,np=736mg/(m3∃h),n∗=np/[E(C2-C0)]=165h-1,Q1∗=Q1(n∗/n)=16711360W,Q2∗=Q2(n∗/n)3=71769W,725%,98%,1h,Q1∗=!1n1n+(!2-!1)n2nQ1(14)Q2∗=!1n1n3+(!2-!1)n2n3Q2(15)4∃100∃暖通空调HV&AC2006年第36卷第3期4!1/h0.250.350.450.550.650.750.85!2-!1/h0.750.650.550.450.350.250.15n1/h-10.470.891.151.201.291.351.35n2/h-16.046.046.046.186.426.717.15Q1∗/W470703.4429178.1388731.5348507.8312502.4272445.8224843.7Q2∗/W26404.122919.419468.517125.515019.012364.69082.4!1!24,0~!1046h-1!1~!214h-1,,!1=075h,!2-!1=025h,2724458W123646W,,,,!1/!21,,,,,!1/!2,,,CO,n1n2,,CO,,,CO,CO,:,COC1,;COC1,n1;COC2,n2,COCO,,100~1700mm600mm[8]E,E=CP/C(CPCO,CCO)[9],CO,CO,,5,,,2~3,,,,,;CO,CO,,,,,:,,;;,[1].∃[M].:,2003[2].GB50067&97[S].:,1997[3]XueH,HoJC.Modellingofheatandcarbonmonoxideemittedfrommovingcarsinanundergroundcarpark[J].TunnellingandUndergroundSpaceTechnology,2000,15(1):101115(下转第120页)∃101∃暖通空调HV&AC2006年第36卷第3期),2002103,1~412,7,30sv2=0992v1+017,v11/m155148155125125125155130135130115115v1/(m/s)5.24.95.24.24.24.25.24.34.54.33.83.8v2/(m/s)5.35.15.34.34.34.35.34.54.64.54.04.0:(46m/s)1006848m3/h2/m210225195200210260240v1/(m/s)7.07.56.56.77.08.78.0v2/(m/s)7.17.66.66.87.18.88.1:(74m/s)1214784m3/h3/m130130135140110125145150145110125115v1/(m/s)4.34.34.54.73.74.24.85.04.83.74.23.8v2/(m/s)4.54.54.64.83.84.35.05.15.03.84.34.0:(45m/s)984960m3/h4/m210190190150200230210v1/(m/s)7.06.36.35.06.77.77.0v2/(m/s)7.16.56.55.16.87.87.1:(67m/s)1083456m3/h,10m3/h11~13A,20A,2),(,)2002,,,3)2003346,400mm600mm,2003321,555#6#7#8#/A26242422:375+,5,,20A,225+,,6613#14#15#16#/A19.919.820.220.019.719.920.320.06,,3.21)114,,2)4,3),,,,,42003,,(上接第101页)[4].[J].,2002,32(1):6263[5]ChowWK.Onventilationdesignforundergroundcarparks[J].TunnellingandUndergroundSpaceTechnology,1995,10(2):225245[6].TJ36&79[S].:,1980[7]ChanMY,BurnettJ,ChowWK.Energyuseforventilationsystemsinundergroundcarpark[J].BuildingandEnvironment,1998,33(5):303314[8]ASHRAE.ANSI/ASHRAE55&1992Thermalenvironmentalconditionsforhumanoccupancy[S][9],,,.[M].:,2001∃120∃暖通空调HV&AC2006年第36卷第3期