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时间:2019-03-10
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1、AppliedThermalEngineering29(2009)324–328ContentslistsavailableatScienceDirectAppliedThermalEngineeringjournalhomepage:www.elsevier.com/locate/apthermengEnergyandexergyanalysisofasteampowerplantinJordanIsamH.Aljundi*ChemicalEngineeringDepartment,MutahUniversity,Al-Karak61710,Jordanarticleinfoabst
2、ractArticlehistory:Inthisstudy,theenergyandexergyanalysisofAl-HusseinpowerplantinJordanispresented.TheprimaryReceived14November2007objectivesofthispaperaretoanalyzethesystemcomponentsseparatelyandtoidentifyandquantifytheAccepted27February2008siteshavinglargestenergyandexergylosses.Inaddition,the
3、effectofvaryingthereferenceenvironmentAvailableonline4March2008stateonthisanalysiswillalsobepresented.Theperformanceoftheplantwasestimatedbyacomponent-wisemodelingandadetailedbreak-upofenergyandexergylossesfortheconsideredplanthasbeenpresented.Energylossesmainlyoccurredinthecondenserwhere134MWis
4、losttotheenvironmentKeywords:whileonly13MWwaslostfromtheboilersystem.ThepercentageratiooftheexergydestructiontoExergyanalysisthetotalexergydestructionwasfoundtobemaximumintheboilersystem(77%)followedbytheturbineExergyefficiencyDeadstate(13%),andthentheforceddraftfancondenser(9%).Inaddition,thecal
5、culatedthermalefficiencybasedonSteampowerplantthelowerheatingvalueoffuelwas26%whiletheexergyefficiencyofthepowercyclewas25%.Foramod-eratechangeinthereferenceenvironmentstatetemperature,nodrasticchangewasnoticedintheperfor-manceofmajorcomponentsandthemainconclusionremainedthesame;theboileristhemajo
6、rsourceofirreversibilitiesinthepowerplant.Chemicalreactionisthemostsignificantsourceofexergydestructioninaboilersystemwhichcanbereducedbypreheatingthecombustionairandreducingtheair–fuelratio.Ó2008ElsevierLtd.Allrightsreserved.1.Introductionexergyatdifferentpointsinaseriesofenergy-conversionsteps.
7、Withthisinformation,efficienciescanbeevaluated,andthepro-Jordan’senergymarketisoneofthecountry’sfastestdevelop-cessstepshavingthelargestlosses(i.e.,thegreatestmarginforingsectors.Annualdemandforelectricityhasincreasedbymoreim
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