超低热值燃料催化燃烧燃气轮机系统特性研究

V1MJ/m380901%VINOx5-10VIINREC()ABSTRACTVIIICHARACTERISTICSSTUDYONSUPER-LOWVALUEFUELCATALYTICCOMBUSTIONGASTURBINESYSTEMABSTRACTGaseousfuelisdividedtothreecategories:high-heatvalue,mid-heatvalue,andlow-heatvaluebasedontheheatproductivity.Moreover,akindoflow-heatvaluefuelnamedsuper-lowheatvaluefuelwhoseheatproductivityislessthan1MJ/m3.Therearekindsofandplentyofsuper-lowheatvaluefuel,includingcoalmineventilationair,coalbedgas,watergas,marshgas,somegasproducedinsteelindustry,chemicalindustryandotherkindsofgas.Evernow,thesesuper-lowheatvaluefuelsareveryhardtobeutilizedunderusualconditionfortheycouldnottofired,somostofthesefuelsaredischargeddirectlytoairandconducinghugeofwastageandseverelyenvironmentspollution.Thispaperadvancedakindoftheorynamedsuper-lowheatvaluefuelcatalyticcombustiongasturbine(SLCCGT)whichisdeadagainstsuper-lowheatvaluefuel’scharacteristicoflowheatvalueandcouldnotbefireddirectly.Itadoptsthemethodofcatalyticcombustiontocatalyticoxidationsuper-lowheatvaluefueltofumewithhigh-temperatureandhigh-pressure,andthenutilizethisfumetomotivategasturbineworking.Profitingfromthisnewkindofsystem,80%~90%energyfromsuper-lowABSTRACTIXheatvaluefuelcanbereclaimed,andalotofeconomiceffortsandsignificantsocialprogresscanbemade.Duringthetimeofbothenergycrisisandenvironmentpollutionareveryaustere,developingthissuper-lowheatvaluefuelcatalyticcombustiongasturbineisverynecessary.Thissubjectisestablishedinutilizingsuper-lowheatvaluefuelwith1%methaneconcentrationtoresearchthisnewstyleofcatalyticcombustiongasturbine.Thissystemhasfollowingcharacteristic:methaneconcentrationisverylownaychanginggreatitneedn’tairforassistantcombustion;itadoptsthehoneycombtypemonolithicreactorwhichispropitioustomitigateNOxbutpressurelosingandresistancechangingarebiggishrelevantly;flowisbiggishtooandnearlyfivetotentimesthantraditionalgasturbinewithsamegrade.Essentiallytospeak,abovecharacteristicshavemucheffecttogasturbine’sthermodynamicspecialityandtherelationshipamongmaincomponentsismuchmorecomplex.ThissubjectcombinesthreeimportantresearchsubjectssupportedbyChinaScienceandTechnologyinternationalcooperationproject,ShanghaiJiaotongUniversity-CommonwealthScientificandIndustrialResearchOrganizationinternationalcooperationprojectandShanghaiScienceandTechnologyCommittee.Therearefollowingpartsofassignmentsinthispaper:Firstly,atthebaseofplentyofresearchwork,thispaperanalyzeditsoperatingprincipleandkeytechnologyandalsocomparedthesameanddifferenttraitsofthisnewgasturbinetothetraditionalone.Secondly,thispaperanalyzedthesteadystateequationsofeachcomponentofSLCCGT,madesomeadjustmentsonsteadystateABSTRACTXthermodynamiccalculationbasedontheSLCCGT’scharacteristicsandsettleddownthefinalscheme.Italsopresentedthescaleforsteadystatethermodynamiccalculation’sparametersandgainedthethermodynamiccircleperformanceunderdifferentconditionsthroughthosecalculations.Throughanalyzingcalculationdata,obtainedtheeffectsofmethaneconcentrationonoutlettemperatureofcombustor,effectsofcircletemperatureratiooncirclethermo-efficiency,effectsofmethaneconcentrationoncirclethermo-efficiency,effectsofcompressor’spressureratiooncirclethermo-efficiency.ThroughanalyzingandcomparingoftheseeffectsdesignedtheparametersofstandardrunningconditionofSLCCGT.Thirdly,basedontheparametersofstandardrunningconditionofSLCCGT,designedthestructureandaerodynamicparametersofcompressorandturbine,andthendrewthecharacteristiccurvesofcompressorandturbinebasedoncommercialsoftwareNREC.Finally,thispapersimulatedthedynamiccharacteristicsofSLCCGT.Basedonquasi-steadysupposal,introducingmodularizationmodelbuildingmethoddisassembledtheeachunitofSLCCGTandthenbuiltsimulatingmodelreverently.Thereincludedthecharacteristicequationsinsideofeachmodel.Thenconnectedallmodelstoliquidnetaccordingtorealsystemconfiguration.Consequentlysimulatedwholesystemparametersaswellaseachcomponent’sparameters.Basedontheintegermodel,increasedanddecreasedphasesteptosystem’sloadandreviewedeverycharacteristicparameter’svarietyfollowingload,therebycanmastertherunningcharacteristicsofunratedconditionsofSLCCGT.ComparedthedynamicstateresultstothesteadystatethermodynamiccalculationABSTRACTXIresultstovalidatetheveracityandreliabilityofthemodel.Summarizingabovedescription,thisthesisanalyzeditsoperatingprincipleandkeytechnologycalculatedthesteadystatethermodynamiccharacteristicsunderratedcondition,designedthestructureandaerodynamicparametersofcompressorandturbine,andfinallysimulatedthedynamicstatecharacteristicsunderunratedcondition.Itmadeastablebasisforfurtherstudyanddesigningevenindustrializationofthisnewstylegasturbinethroughtheseassignments.KEYWORDS:Super-lowheatvaluefuel,Catalyticcombustion,Gasturbine,Steadystatethermodynamiccharacteristics,DynamicstatecharacteristicsXVeb-1T-2bmm2Tmm3bmm2aTmm4bmm3TK1cmm4TKc%qTN.mccm/s1um/s1pCkJ/kg/K2um/s2pCkJ/kg/KWkWpmCkJ/kg/KSLWkJ/kg1dmmSTWkJ/kg2dmmSPWkJ/kg2'dmm1z0Dmmcz1DmmDZ2DmmbT∆K3DmmcT∆K4DmmPT∆KGkg/scε-1Fmm21rε-chkJ/kg2rε-XVIcshkJ/kgtε-h-cwkJ/kguHkJ/Nm3twkJ/kgWHmmgwkJ/kgk-bη-mlmmcη-meη-mMkgmcη-nr/minmtη-aPPatη-1PPauη