张旋外文翻译

—38—理工学院毕业设计(论文)外文资料翻译专业：建筑环境与设备工程姓名：张旋学号：12L1402232外文出处：GroundSourceHeatPump附件：1.外文资料翻译译文；2.外文原文。指导教师评语：签名：年月日(用外文写)—39—附件1：外文资料翻译译文GroundSourceHeatPumpAtpresent,energyisthemostimportantelementforthedevelopmentofstates’economy.Becauseofthegoodenergy-savingeffect,usingregenerateresourceofenergy,andnopollution,theGROUNDSOURCEHEATPUMPAIR-CONDITIONisusedmoreandmorepopularnow.InthesystemoftheGROUNDSOURCEHEATPUMPAIR-CONDITION,theterminaldeviceswhatincludethefan,thedeepwellpump,thecirculatepumparethebiggestenergy-consumedpartexcepttheinnerdeviceaswellasthecompressormotor,etc.Soitisveryimportantandsignificanttomaketheterminaldevicesrunninginthemostenergy-savingcondition.Inthispaper,theauthorfoundedontheGROUNDSOURCEHEATPUMPAIR-CONDITIONinGuangxiUniversity,basedontheactualprojectcondition,madetheredesignthroughthewayoffrequencyconversiontechnologyfortheoldsystemofGROUNDSOURCEHEATPUMPAIR-CONDITION.Atfirst,theequipments’runningcontrolsystemwereimprovedfollowingtheenergy-savingprincipleoffanandpump,chousedMitsubishiFRseriesfrequencytransducerwithvector-controlfunction,MitsubishiFX2NseriesPLCandotherauxiliarypartstomakeupoftheauto-controlsystemfortheGROUNDSOURCEHEATPUMPAIR-CONDITION,andthendidtheemulatinganalysisforthevector-controlmodeinthefrequencyconversionprocess.Inthenextbasedtheauto-controlsystem,madethePLCcontrolsystemdesigning.Thissystemmonitorthetemperatureandfluxinaccurateandrealtime,theninputfeedbacktotheplc,finallytheterminaldevicerunningstatuswillcorrespondtothecustomer’sdemanded-load,itcanwellmeetthegoalforsavingenergyandprolongthelifeofthemotorandotherdevice.Atthesametime,designedthePLCcontrolprocess,accordingtothistransformationofthespecificprogramme,programmedforthePLCbyusingtheFX-GP/WIN-Cprogrammesoftware.ResearchedandanalysesthePIDalgorithmanditsimprovedalgorithmforthePIDOperationalmoduleinthePLC.Atlast,throughdetailedanalysisandaccountedforenergy-savingeffectandthecostofthesystem-reforming,validatedtheprofitabilityofthisredesigned-project,andshoweditsfeasibilityandworthBeusingrenewablegeothermalenergyinshallowgroundlayer,agroundsourceheatpump(GSHP)technologyisknownasoneofairconditioningtechniqueswhichhavethegreatestdevelopmental.TheGSHPhasgreatpotentialsinenergyreductionandinreducingCO2emissionstoconventionalHVACsystems.InChina,energyshortageandenvironmentalissuesposeaseriouschallengeaccompaniedbyrapideconomicgrowth.GSHPhasbeenspotlightedasbothenergyefficiencyandenvironmentalbenefits.Generally,theinitialinvestmentforaGCHPsystemishigherthanthatofaconventionalsystem.GCHPenergysavingswilloffsetthehigherinstallingcostinfuture.However,therearemanyaspectsaffectingtheactualamountofenergysaved,suchasclimate,buildingload,groundheatexchanger,heatpump,control,etc.Recently,alotofresearchontheenergyperformanceofGCHPhasbeencarriedout.However,mostofthesepreviousresearchprojectsevaluatedtheperformanceofGCHPsystembasedonalaboratoryscaleorasmallcapacitysystem.Thereislittledatadocumentingthelong-termperformanceofalarge-sizedGCHP.Evalutionandresearchonrealworldinstalled—40—GCHPwillprovideamoreaccurateunderstandingofthecurrenttechnology’sperformance.ThepaperpresentedthattheenergyperformanceevaluationoftwotypesofGSHPsbasedonactualoperationaldata.ThetwotypesofGSHPswereground-coupledheatpumpsystem(GCHPs)andgroundwaterheatpumpsystem(GWHPs)whichwere,respectively,installedintwoapartmentbuildingsofWuhan,China.Inoneyear,wemonitoredvariousoperatingparameters,includingtheoutdoortemperature,theflowrate,electricalconsumption,andthewatertemperature.Thecoefficientofperformance(COP)valuesofsystemandchillerweredeterminedbasedonaseriesofmeasurements.DuringresidentialGCHPsystemoperation,theheatinjectionrateintosoilislargerthantheheatextractionrateoutofsoil.TheCOPofchillersoftheGCHPsdecreasedsignificantlyduringtheheatingseasonduetotheloweringofgroundsoiltemperature.Thesystempowerconsumptionexhibitedastronglinearrelationshipwithoutdoortemperatureinbothseasonsandthissuggeststhatnormalizingpowerconsumptionagainstdegree-daysisahighlypracticalindexinenergyanalysisinresidentbuildings,especiallyinwinter.Someresearchtopicswerestudiedonthetwoactualcases.Anexergyanalysisofagroundwaterheatpumpsystemontheactualoperationwasconduced.Theenergyefficiencyandexergylossandefficiencyineachofthecomponentsofthesystemaredeteminedfortheaveragemeasuredparametersobtainedfromthemonitoredresultsofthehottestmonthandthecoldestmonth.Inefficientfactsarefoundoutandincreasedenergyefficienciesoftwoproposedimprovementmeasureswereestimated.Lowerapproachtemperatureiseffectiveenergysaving.Inadditiontotheenergyanalysis,afullexergyanalysishelpstoidentifythecomponentswhereinefficienciesoccur.AneconomicanalysismodelforGWHPwasestablishedtocalculateenergyconsumptionandoperatingcostbasedonabaselinecondition.Plateheatexchangerflowrateandgroundwaterflowratewereoptimizationparametersaccordingtodifferentwaterpriceofthegroundwater:GWHPsurveydatashowstheimpactofwaterpriceongroundwaterflowrateindesign.Thelong-termenergyperformancesoftheGWHPsandtheGCHPswereinvestigatedandcomparedwithconventio