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混合式海洋温差能利用系统的理论研究.pdf

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58001 混合式 海洋 温差 利用 系统 理论研究
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天津大学硕士学位论文混合式海洋温差能利用系统的理论研究姓名:刘奕晴申请学位级别:硕士专业:工程热物理指导教师:王迅20040101ABSTRACTOceanthermalenergyisoneofcleanandrenewableenergyTheoceanthermalenergyconversion(OTEC)systemCangenerateelectricityandfreshwaterandthecoldseawatercanbeusedascoldSOUrCeinanairconditionsystemTheexploitationofoceal]thermalenergyresourcesnotonlyCanalleviatethepressureofenergySOUrCesinourcountrybutalsocanadjusttheenergysourcestructurewithoutpollutionThispaperstudiestheintegratedOTECcyclesystemTheprincipalcontentsforresearcharesummarizedasfollowsOnthebasisofcomparisonofopencycle,closed—cycleandintegratedcycle,thispaperchoosetheintegratedOTECcycleastheobjectofresearchTheintegratedOTECsystemconsistsofgeneratingpowersystemanddesalinationsystemThispaperdesignsorselectequipments,thenbuildstheexperimentplatformAccordingtotheexperimentplatform,thispaperestablishesmathematicalmodelBycalculating,thispaperanalysestheproblemsasfollows:(1)Theinfluenceofthewormwater’StemperatUreonthesystem(2)Theinfluenceofthecoldwater’Stemperatureonthesystem(3)Theinfluenceoftheseawater’Sflowonthesystem(4)Theinfluenceoftheevaporationtemperatureandcondensationtemperatureonthesystemandtheinfluenceoftheammoniaflowonthesystem(5)Thesyntheticalinfluenceofseveralfactorsonthesystem(6)TheinfluenceofwormseawatertemperatureandflowonthedesalinationsystemBystudying,thecorrespondingrelationsofeveryparameterareobtainedinthispaperTheyarethechangingtrendsofgrossefficiencyofsystem,thegrosspower,thenetpower,thetotalefficiencywhenthewormseawatertemperatureorthecoldseawatertemperaturechangesThechangingtrendsofgrossefficiencyofsystemandthetotalefficiencyarealsoobtainedwhenthetemperatureofevaporationortemperatureofcondensationchangesIntheseawaterdesalinationsystemtherelationsoftheflashtemperatureandtheflashratio,themassoffreshwaterandthemassofWOrmseawaterarealsobeeducedTheresearchwillguidethenextstepexperimentandbetechnicalpreparationfortheresearchofOTECinOUrcountryKeywords:oceanthermalenergyconversion,generateelectricityseawaterdesalination,flashratio,efficiency
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