城市生活垃圾焚烧炉的建模

ISSN100020054CN1122223öN()JTsinghuaUniv(Sci&Tech),200646112006,Vol.46,No.1123ö39188421887,,,(,100084):2005212221:(19782),(),,:,,E2mail:[e-mail]:400töd,,5,,112,,:;;;:X705:A:100020054(2006)1121884204ModelingofanMSWincineratorLUõõLiang,DINGYanjun,ZHULin,WUZhansong(DepartmentofThermalEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:Acompletemathematicalmodelwasdevelopedfora400tödtravelinggratemunicipalsolidwaste(MSW)incinerationplantinTianjinincludingthepyrolysisandcombustioncharacteristicsofthewaste.Theincineratorwasdividedintofiveregionswiththewasteonthegratesdividedinto112cellsalongthemovementdirectionofthegrates.Temperaturesineachcellwereassumedtobeuniform.Simulationresultswiththemodelagreewellwithmeasureddata,whichindicatesthatthemodelaccuratelyreflectstheactualsystemcharacteristics.Keywords:municipalsolidwaste(MSW);incineration;travelinggrate;mathematicalmodel,,,,11200t,3400töd212MW,4MPaö400SN,6.78m,11.2m,(2.84m)1(3.085m)2(2.84m)(2.312m),,1,H850212,1()45.304.491.632.3413.400.461.852.5524.972100100100kJõkg-1kJõkg-143.7226.1130.171379061413[1],5,151)A2)BA3)CB4)DB,5)EABC3()(),1DL=0.1m,11213.1:1),,2),D3)D,4)5)Cv=80%[2],COH2CO23,3.22,jdmi(j)dS=F1,i(j)-F2,i(j)-Ri(j)-Fxl(j).(1)2:i=w,a,v,c;j=1,2,,112;m(kg);F(kgös);1;2;xl,0;R(kgös),(1)F:F1,i(j)=F2,i(j-1),(2)F2,i(j)=mi(j)VöDL.(3)V(mös),,SG1SG5(0100%)250mm,,,0.866.10mmös(3):jQ,H,F,F2,i(j)=VFHQmi(j)=DLFHQ,Rw(j)=DQör.(4):DQj;r,2257.51kJökg,,Arrhenius,dAdS=Aexp-ERT(1-A)n.(5):AS,A,E,n,N2,[3](MMSW)(N2)(),35881,:3MMSW()46.234.761.672.1511.721.365.4626.651,,44MMSWHönEö(kJõmol-1)Aös-12103201.218530.86310.823201.574040.52199.92(5)Rv(j),Ks=fsC11ökc+1öB0.(6):fs,CO,fs=0.75,COD;kc=k0exp(-EcöRT),k0=2.25104mös,Ec=1.113105Jömol;C(kgöm3);B0,B0[4]:T=1073K,d=20mmkc=0.0345,B0=0.316kc,B0,1073K,20mm,B0(6)Ks=fsCkc.,,jRc(j),7,55ömm2.51.02.50.61.00.3550.60.10.3550.030.10.0310018.4430.2022.6612.708.594.452.96,Rc(j)=7n=16mc(j)nQdnfsCkc.(7)kdnn3.32,jDQ=Q1-Q2+Qair-Qgas-Qxl-Qlp+Qreac+6.78DL(qyq+qlg).(8):Q1Q2,cp;QairQgas;,Qreac=Rc(j)q1,q1=1.225107JömolC+0.5O2CO;Qxl,0;Qlp=$TöR,,,,$T,R,R=7.675;qyqqlg,Wöm2,[5]:qyq=5.67Ew+12EgTg1004-AgTw1004,qlg=5.67Tlg1004-Tw10041Elg+1Ew-1.:TgD;Twj;Tlg,Tlg=Tg;Ew=0.90;Elg=0.85;EgAg,CO2H2OrCO2örH2OEg=1-e-kpL,k[6],Lk=1.6590.78+1.6rH2O1.02pRO2L-0.1õ1-0.37Tg1000rRO2,:RO2,pDQj,DQ,DQ,DT=DQö(mcp).:m,cp2.83.4DO2N2COCO2H2OH26881()2006,46(11)HFHClSO2NOx,FClS,,Rv(j)[7],NNOx,:U=-2.8412104Z3+0.01364Z2-0.3063Z+15.756,Z=100XVM-30.637.XVMDdmiödS=Gi,in+Gi,lf-Gi,out-Rg,i.(9):i10;Gi,inDi(kgös),i;Gi,outDi;Gi,lf,,O2N2,0.05;Rg,iiH2CO,[8]r=kgCaCb.(10):CaCb,molöm3;kg=kg0exp(-EgöRT),COH2kg03.091058.83105m3õmol-1õs-1,Eg=9.976104JömolDdHgödS=Hin-Hout-Qlg+Qoil.(11)HgD,Hin,HoutD,QlgD,QoilE,4,3HY,,3,,,,16.7töh3à,220à,100à,15,,,(References)[1].[J].,2000,28(4):3640.MAXiaoqian.ThermodynamicmodelresearchofMSWincinerator[J].ChemicalEngineering,2000,28(4):3640.(inChinese)[2]YangYB.MathematicalmodelingofMSWincinerationonatravelingbed[J].WasteManagement,2002,22:369380.[3],,,.[J].,2004,17(1):1114.LIWei,ZHANGXiansheng,SHENJimin,etal.TGstudyofincinerationandpyrolysischaracteristicsofmodelmunicipalsolidwastes[J].JiangsuEnvironmentalScienceandTechnology,2004,17(1):1114.(inChinese)[4].[D].:,1995.LIZheng.Modeling,SimulationandPerformancePredictionofaCompleteCFBCBoiler[D].Beijing:TsinghuaUniversity,1995.(inChinese)[5].[M].:,1991.QINYukun.HeatTransferinBoiler[M].Beijing:ChinaMachinePress,1991.(inChinese)[6].[J].,2000,16(4):245247.ZHANGXiaobing.StudyonradiationheattransferofhighmoisturecontentfluegasinMSWincineration[J].PowerSystemEngineering,2000,16(4):245247.(inChinese)[7]HampartsoumianE,GbbsBM.NOxformationandreductioninfluidizedbedcombustors[J].JournalofInstEnergy,1984,57:402410.[8].[D].:,1997.WANGQinhui.MathematicalModelingandPerformanceTestingofCirculatingFluidizedBedBoiler[D].Hangzhou:ZhejiangUniversity,1997.(inChinese)7881,: