600MW超临界机组的一些论文,关于火力发电厂的
第4期英 文 摘 要 443
heattransfercoefficient,particlethemro2physicalproperty
掺烧石油焦410t/h循环流化床锅炉NOx排放特性研究=AStudyofNOxEmissionCharacteristicsofa410t/h
CirculatingFluidizedBedBoilerBurningaMixtureofCoalandPetroleumCoke[刊,汉]/DUANLun2bo,ZHAOChang2sui,LIYing2jie,etal(EducationMinistryKeyLaboratoryonCleanCoalPowerGenerationandCombustionTechnology,SoutheastUniversity,Nanjing,China,PostCode:210096)//JournalofEngineeringforThermalEnergy&Power.-2008,23(4).-391～394
AnexperimentalstudywasperformedoftheinfluenceofoperatingparametersonNOxemissioncharacteristicsofa410t/hcirculatingfluidizedbedboilerburningamixtureofcoalandpetroleumcoke.ThelawgoverningthechangeofNOxe2missionconcentrationwithsuchparametersastemperature,excessairfactor,primaryairrateandcalcium/sulfurratioetc.wasexpoundedwhentheboilerburnsthefollowingthreekindsoffuel:bituminouscoal,70coal+30%petroleumcoke,and50%anthracite+50%petroleumcoke.Theofwhentheboilerburnsdifferentfuels,itsNOxemissionconcentrationisinpositivevWithanincreaseintemperature,NOxemissionconcentrationwillanenormousinfluenceontheNOxemissionconcentration.theprimaryairrate,NOxemissionconcentrationwillalsoincrease.molarratio,NOxemissionconcentrationwilldecrease.Thetestre2sultscanwellprovidefortheoperationofcirculatingfluidizedbedboilersburningamixtureofcoalandpetroleumcoke.Keyords:circulatingfluidizedbedboiler,burningofamixedfuel,petroleumcoke,NOxemissionconcentration
基于多模型集的主汽温多模型预测控制方法=MainSteamTemperatureMulti2modelPredictionandControlMethodBasedonaMulti2modelSet[刊,汉]/LIUJi2zhen,YUEJun2hong,TANWen(AutomationDepartment,NorthChinaUniversityofElectricPower,Beijing,China,PostCode:102206)//JournalofEngineeringforThermalEnergy&Power.-2008,23(4).-395～398
Concerningakindofindustrialprocessesforwhichfirst2orderinertiaplusapurelaggingmodelcanbeusedtodescribetheirdynamiccharacteristicsunderdifferentoperatingconditionsandwhichchangewithoperatingconditions,amethodwaspresentedforsettingupamulti2modelsetbasedonthemaximumandminimumvaluesofthecharacteristicparametersofanobject.ArecursiveBayesianprobabilityweightingmethodwasusedtoobtainanoverallpredictivemodel.Onthisbasis,amulti2modelpredictivecontrollerwasdesignedtomeetthecontrolrequirementfortheoperatingconditionsvaryinginawiderange.Inthemeanwhile,whenarectificationoferrorsisbeingperformed,thepredictionerrorofthemodelre2sultingfromanydynamicchangeoftheoperatingconditioncanbecompensatedinadvancetoenhancepredictionaccura2cy.Thesimulationcalculationresultsofautilityboilermainsteamtemperaturesystemshowthatthemethodunderdis2cussionenjoysasuperiorabilitytotrackasetvalueundervariousoperatingconditions.Whentheoperatingconditionschangeinawiderange,itispossibletostabilizethemainsteamtemperaturenearasetvalue.Keywords:mainsteamtemperaturesystem,multi2modelset,multi2modelpredictioncontrol,Bayesianprobabilityweighting,dynamicfeedforward
600MW燃煤电站烟气汞形态转化影响因素分析=AnAnalysisoftheFactorsExercisinganInfluenceontheMorphologicalTransformationofMercuryintheFlueGasofa600MWCoal2firedPowerPlant[刊,汉]/WANGYun2feng,DUANYu2feng,YANGLi2guo,etal(CollegeofEnergySourceandEnvironment,SoutheastUniversity,Nanjing,China,PostCode:210096)//JournalofEngineeringforThermalEnergy&Power.-2008,23(4).-399～403Mercuryemissionsfromcoal2firedpowerplantsareregardedasthelargestpollutionsourceofman2mademercuryemis2sionsinnature.Hence,toperformanon2the2spottestingofthemercuryemissionconcentrationinvariousformsfromacoal2firedpowerplantisofvitalsignificanceforunderstandingandcontrollingthelawandregularityofmercuryemis2sions.WiththeinternationallyacceptedOntarioHydromethodbeingadoptedtosamplethefluegasbeforeandafteranelectrostaticprecipitator(ESP)ina600MWcoal2firedpowerplant,theAmericanEPA(EnvironmentalProtectionAgen2cy)standardmethodwasusedtodetermineHg0,Hg2+andHgPconcentrationinthefluegas,andDMA80wasemployedtoascertainthemercuryconcentrationinsolidsamples(coal,bottomash,ESPflyash).ThetestingresultsshowthatwhenthefluegaspassesthroughtheESP,themorphologyofthemercurycontainedinthefluegaswillundergoaremark2