生物质发电气化过程建模及优化研究

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1、华北电力大学（保定）博士学位论文生物质发电气化过程建模及优化研究姓名：李大中申请学位级别：博士专业：热能工程指导教师：韩璞20090401华北电力人学博十学何论文摘要2．提出一种生物质气化过程多目标优化目标函数：3．建立了生物质气化(催化裂解、热裂解)焦油脱除过程模型；4．提出了生物质气化焦油脱除过程优化目标函数；5．建立了一种生物质压缩成型过程模型：6．提出了一种生物质压缩成型过程的优化目标函数。关键词：生物质发电，气化过程，建模，优化，目标函数U华北电力大学博+学位论文摘要AbstractThede

2、velopmentof”greenenergy’’hasbecomeanimportantmeansintheindustrializedcountriesoftheworldofcutingexpenditure，poductingnewenergy，convertingeraptoutilizationandprotectingtheenvironment．Themainreasonforcausingseriousenvironmentalpollutionisthecoal-dominatede

3、nergystructure．Thefossilfuelsarenon-renewableandtheuseofthemcanbringaboutenvironmentalpollution,sothebiomassoccupiedanimportantpositionintherenewableenergystructure．Biomassgasification&powergenerationisanimportantformofbiomassenergyapplication,andbiomass

4、gasificationprocessisthekeyofthetechnologyofgasificaton&powergeneration．Althoughtherehavebeensomereportsinthisareaathomeandaboard，itisstillverylackofthestudiesonmodelingthecharactersofbiomassgasificationprocessandoptimizingtheparameters．Soithasimportantt

5、heoreticalandpracticalvalue，aswellasenvironmental，socialandeconomicbenefitstostudythemodelingandoptimizationoftheparametersaboutgasificationprocessinthebiomassgasificationpowergenerationsystem．Combinedwimtheeconomicdevelopmentoftheenergysituationandbased

6、ontheanalysisofthemechanismofthebiomasspowergenerationpyrolysisgasificationprocess，wehadmadeasystematicalstudytoexplorethemodelingandoptimizationofthebiomassgasificationprocess，tarremovalprocess，aswellasthebiomasssolidificationprocess．Wcalsorespectivelye

7、stablishagasificationprocessofthethermo-chemicalbalancemechanismmodel，theleastsquaressupportvectormachinemodel，theartificialneuralnetworkmodelanddynamicmodelofcirculatingfluidizedbedgasification，anddoasimulationbasedontheexperimentaldataonthemodelswhichw

8、ehadalreadyestablished．Theresultsshowthatfourofmathematicalmodelsofgasificationprocessestablishedinthispaperhasagoodsimulationeffect，theyalsocaneffectivelyrefecttheactualcharacteristicsofthegasificationprocessandverifythee