旋流燃燒器對沖布置的鍋爐爐內(nèi)NOx生成機(jī)理及控制的研究.pdf

1、同濟(jì)大學(xué)博士學(xué)位論文旋流燃燒器對沖布置的鍋爐爐內(nèi)NOx生成機(jī)理及控制的研究姓名：李芳芹申請學(xué)位級別：博士專業(yè)：熱能工程指導(dǎo)教師：魏敦崧任建興20040201AbstractInChina，coal—firedpowerplantspredominateinpowerplantsWiththedevelopmentofpowerindustryproblemsofpollutantemissioncausedbycoalconsumpti

2、onbecomemoreandmoreseriousGovernmentbeginstocontrolemissionofnitrogenoxide(NOx)andestablishrelativeemissionstandardThispapercombiningwiththerunningconditionsofpowerplant，studiesa330MWswirledopposedutilityboilerBythemetho

3、dofnumericalsimulation，distributionsoftemperature，oxygenconcentrationandnitrogenoxides(NOx)arestudiedFormationmechanismofNOx，maininfluencingfactorsandcontrolmeasuresofNOxaretheoreticallystudied，tooAccordingtothepredefine

4、dloadsandairdistribution，underthesteadyoperatingcondition，NOx&S02emissionconcentrationsaretestedandrecordedBasedontheserecordeddata，effectsofairdistlibutionandS02concentrationonNOxemissionconcentrationarestudiedNumerical

5、simulationisonedominatingpartofCATandthispaperemphasizesparticularlyOnitApplyingFLUENT60softwareandaccordingwiththeoperatingconditionofpowerplant，combustionprocessandNOxformationofa330MWswirl—opposedboileraresimulatedand

6、calculatedComparisonandanalysisofcalculateddataandtesteddataiSdoneThispapersummarizesthemethodsandmodelsappliedinthesimulationofcombustionprocess，analysestheapplicabilityandthemeritsanddrawbacksofthemethodsandmodelsBased

7、ontheseanalysesbestmethodsandmodelsfitforswirl一opposedboilersareappliedSIMPLEmethodisemployedinflowfieldprediction，RNGk一占methodinturbulentflowUsesvolatilizationreactmodelascombustionmodel，DOmodelaSradiantheattransfermode