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1、GASTURBINESINSIMPLECYCLE&COMBINEDCYCLEAPPLICATIONS*GasTurbinesinSimpleCycleModeIntroductionThegasturbineisthemostversatileitemofturbomachinerytoday.Itcanbeusedinseveraldifferentmodesincriticalindustriessuchaspowergeneration,oilandgas,processplants,aviation,
2、aswelldomesticandsmallerrelatedindustries.Agasturbineessentiallybringstogetherairthatitcompressesinitscompressormodule,andfuel,thatarethenignited.Resultinggasesareexpandedthroughaturbine.Thatturbine’sshaftcontinuestorotateanddrivethecompressorwhichisonthesa
3、meshaft,andoperationcontinues.Aseparatestarterunitisusedtoprovidethefirstrotormotion,untiltheturbine’srotationisuptodesignspeedandcankeeptheentireunitrunning.Thecompressormodule,combustormoduleandturbinemoduleconnectedbyoneormoreshaftsarecollectivelycalledt
4、hegasgenerator.Thefiguresbelow(Figures1and2)illustrateatypicalgasgeneratorincutawayandschematicformat.Fig.1.RollsRoyceRB211DryLowEmissionsGasGeneratornd(Source:ProcessPlantMachinery,2edition,Bloch&Soares,C.pub:ButterworthHeinemann,1998)*Condensedextractsfro
5、mselectedchaptersof“GasTurbines:AHandbookofLand,SeaandAirApplications”byClaireSoares,publisherButterworthHeinemann,BH,(forreleaseinformationseewww.bh.com)OtherreferencesincludeClaireSoares’otherbooksforBHandMcGrawHill(seewww.books.mcgraw-hill.com)andcoursen
6、otesfromhercoursesongasturbinesystems.Foranyuseofthismaterialthatinvolvesprofitorcommercialuse(includingworkbynonprofitorganizations),priorwrittenreleasewillberequiredfromthewriterandpublisherinquestion.Pleasenotethatseveraltopicsinthegasturbinehandbook,for
7、instanceTurbineControls,InstrumentationandDiagnostics;aswellasPerformanceOptimizationandEnvironmentalissuesarenotcoveredinthisauthor’smaterialonthisCD.The“GasTurbines”bookinquestionisseveralhundredpageslongandbesidesthebasics,coverssomeofthemorecomplexandle
8、ngthyworkinrecentgasturbinedevelopment.Condensingitallherewasnotpractical.Whatisherehowever,doesgivethereaderthebasictheoryandpracticeofgasturbinesinsimplecycleandcombinedcyclemode,inpowergenerationser
