基于能效分布矩阵方程的火电厂热力系统分析方法

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1、华北电力大学（保定）博士学位论文基于能效分布矩阵方程的火电厂热力系统分析方法姓名：郭江龙申请学位级别：博士专业：热能工程指导教师：宋之平;张树芳20040401——兰苎皇查查兰堡主堂竺垦羔一——ABSTRACTThecoal．firedpowerplantisnotonlyahugepowergenerator'butalsoahugeenergyconsumer,whichisthemainformin0121"electricpowerindustryforalongperiod．Astheinspectiontools，t

2、heresearchonthethermaleconomicanalysismethodhasanimportanttheoreticalandpracticalmeaningforbeingnotonlythetheoreticalfoundationofthethermalsystemdesigningandtechnicalreconstruction，butalsothepracticaltechniqueofthereal。timeanalysisofthermalequipmenteconomicallyruninp

3、owerplant．Especially,withtherapiddevelopmentofappliedmathematicsandcomputer,newrequestshavebeenputforwardinthestudyof也ethermalsystemanalysismethod．Ithasbeenanewhotspotinitsstudyfieldthathowtoincreasetheanalysismethod’sversatility,intelligence，accuracyandbeingsuitable

4、forcomputerization．Basedonthestudyofthepresentthermalsystemanalysismethod，theenergy—efficiencydistributionmatrix(EEDM)equationhasbeenderiveddirectlyfromcircleemciencycalculationexpressioninnorlTlalenergybalancemethodbyastrictmathematicderivation．Comparedwiththepresen

5、tmatrixmethods．thereisaone-to—onecorrespondingrelationshipbetweenthetopologicconfigurationoftheEEDMequationandactualthermalsystemconfiguration．anditsmatrixelementvaluesreflectthethermalparametersoftheactualthermalsystem．Moreover，thematrixequationcontainsthespecialele

6、mentthatcanexpressthepowerplantthermaleconomicindexes(circlee伍ciencyldirectly．Thestructureandthel'l／lalcharacteristicsofthethermaldynamicsystemCallbeexpressedinmathematicsconvenientlyAllofabovehavemadetheanalysismethodbasedontheEEDMequationmorestrictandscientific．In1

7、0ca]quantitativeanalysisofauxiliarysystem．fromthepointofviewof“mergingfirst，andthenanalyzing”，t11econceptionofavirtualthermalsystemisproposed，Therefore．thepaperconstructSthevirtuaIthermalsystem，whichisadaptedtoEEDMequation．andproposestheuniversalexpressionrulesofeach

8、auxiliarysteam-watercomponent，InIocaIquantitativeanalysisofthermalequipment．thepaperhasproposedtheuniversalexpressionrulesontheloca