能源效率表现多能源供热和热水供应系统-外文翻译

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1、外文文献：Energyefficiencyperformanceofmulti-energydistrictheatingandhotwatersupplysystemSchoolofEnvironmentalScienceandEngineering,TianjinUniversity,Tianjin300072,China©CentralSouthUniversityPressandSpringer-VerlagBerlinHeidelberg2012J.Cent.SouthUniv.(2012)19:1377−1382DOI:10.1

2、007/s11771-012-1153-8Energyefficiencyperformanceofmulti-energydistrictheatingandhotwatersupplysystemJINNan(金楠),ZHAOJing(赵靖),ZHUNeng(朱能)SchoolofEnvironmentalScienceandEngineering,TianjinUniversity,Tianjin300072,China©CentralSouthUniversityPressandSpringer-VerlagBerlinHeidel

3、berg2012Abstract:Adistrictheatingandhotwatersupplysystemispresentedwhichsyntheticallyutilizesgeothermalenergy,solarthermalenergyandnaturalgasthermalenergy.Themulti-energyutilizationsystemhasbeensetatthenewcampusofTianjinPolytechnicUniversity(TPU).Acoupleofdeepgeothermalwel

4、lswhichare2300mindepthweredug.Deepgeothermalenergycascadeutilizationisachievedbytwostagesofplateheatexchangers(PHE)andtwostagesofwatersourceheatpumps(WSHP).Shallowgeothermalenergyisusedinassistantheatingbytwogroundcoupledheatpumps(GCHPs)with580verticalgroundwellswhichare12

5、0mindepth.Solarthermalenergycollectedbyvacuumtubearrays(VTAs)andgeothermalenergyarecomplementarilyutilizedtomakedomestichotwater.SuperfluoussolarenergycanbestoredinshallowsoilfortheGCHPutilization.Thesystemcanusefossilfuelthermalenergybytwonaturalgasboilers(NGB)toassistinh

6、eatingandmakinghotwater.Theheatingenergyefficiencywasmeasuredinthewinterof2010−2011.Thecoefficientsofperformance(COP)underdifferentheatingconditionsarediscussed.Theperformanceofhotwaterproductionistestedinalocaltypicalwinterdayandthesolarthermalenergyutilizationfactorispre

7、sented.TherusultsshowthattheaveragesystemCOPis5.75or4.96underdifferentworkingconditions,andthetypicalsolarenergyutilizationfactoris0.324.Keywords:geothermalenergy;solarthermalenergy;districtheating;hotwatersupply1IntroductionBuildingenergyconsumptiontakesabout23%inthetotal

8、energyconsumptioninChinaatpresentanditisingrowthtrend[1].Heatingloads,coolingloadsandhotw