汽轮机英文文献

ProcediaCIRP26(2015)735–739Availableonlineat©2015TheAuthors.PublishedbyElsevierB.V.ThisisanopenaccessarticleundertheCCBY-NC-NDlicense().Peer-reviewunderresponsibilityofAssemblyTechnologyandFactoryManagement/TechnischeUniversitätBerlin.doi:10.1016/j.procir.2015.01.014ScienceDirect12thGlobalConferenceonSustainableManufacturingStudyoftheHydrogen-SteamTurbineCompositeCycleWuWeiliang*,ZangShusheng,ZhongCeSchoolofMechanicalEngineering,ShanghaiJiaotongUniversity,DongChuanRoad800,Shanghai200240,China*Correspondingauthor.Tel.:[phone];fax:[phone].E-mailaddress:[e-mail]ewtypeofthethermodynamiccycleinthisarticle.ThecycleismainlycomposedbyHydrogenGenerator(HG),HydrogenTurbine(HT),Hydrogen-OxygenCombustor(HOC)andSteamTurbine(ST).ThepurehydrogenisgeneratedinHGathighpressureandisheatedup.ThehydrogenwithhighpressureandhightemperaturedevelopspowerbyflowingthroughHT.ThehydrogenpassedthroughHTisburnedwithpureoxygeninHOC,andthegeneratedsteamprovidespowerbyexpansioninSTsequentially.DifferentfromtheconventionalCombinedCycle(CC),thisthermodynamiccycleisseries-woundbyhydrogenturbineandsteamturbine.BasedonthesefeaturesthiscycleiscalledastheHydrogen-SteamTurbineCompositeCycle(HSTCC)inthisarticle.ItisindicatedthatHSTCChasahigherefficiency.Itshouldbeacompetitivepowergeneratingsystemusingthesophisticatedturbinetechniqueforhydrogenenergyinfuture.©2014TheAuthors.PublishedbyElsevierB.V.Peer-reviewunderresponsibilityofAssemblyTechnologyandFactoryManagement/TechnischeUniversitätBerlin.Keywords:ThermodynamicCycle,HydrogenEnergy,HydrogenTurbine,SteamTurbine.NomenclatureKthermalcycleefficiencyHTWpowergeneratedbyHTSTWpowergeneratedbyST2HQcombustionheatofhydrogeninHOC1.IntroductionWorldenergyconsumptionisgreatlygrowingwiththeprogressofcivilizationandsociety.Energysupplyhasbecomethefundamentofexistenceanddevelopmentofsociety.Thelargescaleconsumptionoffossilfuelscausestheseriousenvironmentalpollutionandsocialproblems.Itisurgenttofindanewtypesofenergyandconsumingtechnologiesthatfreehumanfromtheenvironmentalpollution.Asenergycarrier,hydrogenhasoutstandingadvantagesinthisaspectandisgivenmoreexpectations[1].Forthemobileanddistributedenergysystem,thepollutioncanbeconsiderablyreducedbyutilizationofhydrogen[2].Thehydrogenbelongstosecondaryenergy,themassproductionofhydrogenandpowergenerationbyhydrogencancontrolthepollutionemissioninasmallarea.Howefficientlytogeneratepowerbyhydrogenbecomesakeytechnologyaccordingly.Manyresearchershaveinvestigatedthenovelstrategyforconsumingthehydrogen,forexamplethefuelcelltechnique[3].Technologiesoftraditionalpowergeneration,suchasturbineandinternal-combustionengine,aresophisticatedandhavebeenaccumulatedtherichexperienceinpracticalengineering.Inordertominimizetheresearchingandproducingcostmanyresearchershavecarriedouttheinvestigationforefficientlytransformingthechemicalenergyofhydrogenusingthesetraditionaltechnologies[4][5].Duetothepeculiarityofturbineengine,researchershavestudiedtheapplicationofgasturbinefueledbyhydrogeninship[6].Orusingthegasturbineaskeycomponent,avarietyofadvancedpowercyclecanbebuiltup[7][8].AndthesecyclecanbeefficientlyoperatedinacleanpowergenerationthroughCO2captureand/orNOxelimination[9].Asthepotentialenergycarrierforfuture,thehydrogencanbeproducedbyvariousmethods[10][11].Someofthemethodscanbeusedtoproducethepurehydrogen,forexamplethewaterphotolysispoolorthethermaldecompositionfurnace.Suchunitiscalledasthehydrogengenerator(HG)inthisarticle.ItisproposedanewtypeofthermalcycleusingturbinetechnologybasedontheconceptofHGinthisarticle.Inthisproposedcyclethewaterphotolysispool(PP)isusedasHG.Thereareagasturbine(hydrogenturbine,HT)andasteam©2015TheAuthors.PublishedbyElsevierB.V.ThisisanopenaccessarticleundertheCCBY-NC-NDlicense().Peer-reviewunderresponsibilityofAssemblyTechnologyandFactoryManagement/TechnischeUniversitätBerlin.736WuWeiliangetal./ProcediaCIRP26(2015)735–739turbine(ST)inthecycle,butdifferentfromCC,theHTisconnectedwithsteamturbineinseries.IntheHTandSTthesolarenergycollectedbyprocessinHGwillbetransformedintothermalandmechanicalenergyincombustorandturbinesefficiently.Itisshowedthatthecyclehashighefficiencywithoutpollution.Itprovidesanoptionalcycletechniqueforhydrogenpowergenerationinfuture.2.LayoutoftheproposalthermalsystemItisshownthelayoutoftheproposedcycleinFigure1.ThecycleconsistsofFeedPump(FP),HydrogenGenerator(HG),HydrogenHeatExchanger(HHE),HydrogenTurbine(HT),Hydrogen-OxygenCombustor(HOC),SteamTurbine(ST),Condenser(Cd),CondenserPump(CP)andFeedpump(FP).Duringthecycleoperating,waterisfirstlypressurizedbytheFP.ThepressurizedwaterisdecomposedintohydrogenandoxygenbysunlightinHG.ThenthehydrogenentersintheHHEandbeheated,andtheenergyforheatingthehydrogeniscomefromtheHOC.AfterthatthehydrogenwillfirstlyexpandandgeneratepowerintheHT.TheinHTexpandedhydrogenwillthenenterintotheHOCandcombustwithpureoxygenfromthePP.Partoftheenergyprodu