暖通毕业设计外文翻译地源热泵系统的模拟与设计.docx

暖通毕业设计外文翻译地源热泵系统的模拟与设计.docx

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暖通毕业设计外文翻译地源热泵系统的模拟与设计

外文翻译：

<>Summarizedtherecentyearssourceheatpumpsystemsimulationandthedesignaspectresearchandtheprogress.Firsthasgiventhesourceheatpumpsystemvariouspartsmodellingaspectprogress,includingtheverticalpipeinstallationgeothermyheatinterchanger,thesinglewellcirculatorysystemaswellasseveralkindofassistanceheatdissipatingarrangementwhichusesintheplacesourceheatpumpmixsystem.Next,discussesthescenedeterminationin-depthgroundhotnaturaltechnology.Third,introductionverticalpipeinstallationgeothermyheatinterchangerdesignmethod.Finally,givesinthedesignsourceheatpumpsystemusesthesystemsimulationseveralapplicationexample.Keyword:

Heatpump;Geothermyheatinterchanger;Hotnature;Mixsystem;Model;Design;Simulation

1.synopseslookedfromthermodynamicsviewpointthat,usesthesourcehotworkintheair-conditioningsystemfortheheatsourceortheheatsinkisappealing.Thisisbecause,lookedfromthewholeyear,itstemperatureratioenvironmentdrybulborthewet-bulbtemperatureapproach（needs）intheroomthetemperature.Basedonthisreason,thesourceheatpumpsystemhasthepotentialcomparedwiththeairsourceheatpumpsysteminthehighefficiency.Inactualsituation,sourceheatpumpsystembecausedoesnothavetheequipmenttoexposeinexteriorenvironment,theflowerintheserviceaspectexpenseisquitelow（Cane,etal.1998

2.AlthoughalreadyhadsomesourceheatpumpsystemtechnologytoobtainthedevelopmentintheScandinavianpeninsula,butinitscommercialdevelopmentusewasactuallydoeswellinUS.Thisismainlyisbecausealreadyhasaverybighousingair-conditioningsystemmarketinUS.Becauseitssystemhasthelowenergyconsumptionandthelowoperatingcostalreadyprovedhasattractedverymanyowners.UseselectricitythepeakvalueinAmericanverymanyareastobedecidedbytheairconditioningelectricityconsumption.Enablessomepowerequipmentcompanyregardingthisreasontobeinterestedverymuchtothissystem,theyhopedthroughusessuchsystemtoreducefortheelectricpowerdemand.Somesmallbusinessorganizationandthepublicdepartment'salreadystudiedthiskindoftechnologytheapplication.Thesourceheatpumpsystemattractssomeschoolmanagerasaresultofitlowoperatingcost,andhasthemoreandmoremanyschooluse.AlreadygaveGHPCinUSabouttheplacesourceheatpumptechnologypracticalapplicationsomeexampleresearchdetail.

3.Meetsdowninthepaperinthepartwefirstcangivethesourceheatpumpsystemvariouspartsmodellingaspectprogress,includingtheverticalpipeinstallationgeothermyheatinterchanger,thewatersourceheatpump,thesinglewellcirculatorysystemaswellasseveralkindofassistanceheatdissipatingarrangementwhichusesintheplacesourceheatpumpmixsystem.Becausemustdesigntheundergroundheatinterchangerfirsttohavetounderstandthegeothermytheattribute,thispapersecondpartintroducedbrieflythedeterminationin-depthgroundhotnaturalmodel,thismethodisbytomeasuredthetestholetemperaturerespondedthescenetestmethodexpandscomes.Inthepaperthirdpart,willbeabletointroducewilldesigntheverticalpipeinstallationgeothermyheatinterchangerwiththesoftwarethemethod.Finally,givesinthedesignsourceheatpumpsystemusesthesystemsimulationseveralapplicationexample,includingmixestheGSHPsystemandthefrostproofGSHPsystemdesign.

4.The2.GSHPsystemmodelconstitutestheGSHPsystemgenerallyiscomposedbythewatersourceheatpumpandtheundergroundheatinterchanger,regardingmixestheGSHPsystem,butalsoincludesseveralkindofassistanceheatdissipatingarrangement.Thesesimulationequipmentiscoveredinunde

shutsthecirculationundergroundheatinterchangertoshutthecirculationdoublebarrelsystemstobepossibletousethehorizontalpipeinstallationortheverticalpipeinstallation.Verticalpipeinstallationsystemasaresultofithighheattransferefficiencybypeoplemanyuses.Thiskindoftypeclosedcycleheatinterchangersetsatintothediameterbyarootis75mm~150mmthedrillholeUtubeiscomposed.ThesedrillholesaftersetatintotheUtubewiththeearthbackfillwhichdrillsor,moreuniversal,theentirekondowpadswiththethinmud.Isinthemilkusuallyisavoidsthegroundwaterthepollutionmoreovercausingtheheattransferpipelinewithtocontactcompletelyreachesthegreatlygoodheattransfereffect.Iscommonlyusedthediameteristhe22mm~33mmhighdensitypolyethylenemanages（HDPE）inthesystempipeinstallation.Punchdepthgenerallybetween30m~120m.

Twokindofsimulationcomplexityareveryinteresting.First,thesurveyundergroundheatinterchangeruser'ssmallestinputdesignmethodismaytakeintheunittime.Next,itscanforecastinforseveralhours（orshorttimecurve）becausethebuildingloadcontinuouslychangehaswhatinfluencetotheundergroundheatinterchangerthesimulationpatternalsoisalsoismaytake.Thistheorypermissionanduseselectricitythedemandforecasttothesystemenergyconsumption.BecausebothmethodtakehasbeenpresentedbyEskilson（1987）developmentmodelasthefoundationinthispaper,theEskisonmethodcouldfirstdiscuss,thenwillbetobyYavuzturkandtheSpitlerdevelopmentsimulationpatterndescription.（1999）

2.1.1Eskisonresearchtechniques

Eskison（1987）aimsatthepairholetheambienttemperaturedistributiondefinitequestionsolutionusesthemeanswhichthelogicanalysisandthemathematicalanalysisunify.Regardingtheinitialconditionandintheboundaryconditionconstantevensoilthepairholerelatedvalueestablishmentradialdirection-axialcoordinates,theusetransientstatefinitedifferenceequationcarriesonthetwo-dimensionalvaluecomputationindividually.Thepipewallandthemudandsoontheindividualdrillholeessentialfactorcalorificcapacityislikelyisneglected.Thesingledrillholetemperaturefieldthroughoverlapsobtainstheentiredrillholescope.

Theentiredrillholescopetemperatureresponseistransformedtoagroupofnon-lineartemperaturefeedbackfactor,wascalledmakestheG-function.ThisG-functionpossiblycausestheplacepairopeningwalltemperaturechangesituationcomputationwhichthespecificheatinputcausescorrespondinglywithsometimeininto.AssoonaspassesthroughthedrillholescopethefeedbacktoindicatetothestepsandladdersquantityofheatfeedbackwiththeG-functionthat,anyrandomtemperaturefeedbackfunctioncanbecauseofletaboveaseriesofstepfunctionthetemperaturefeedback/outputdecision,moreoversuperimposestoeachgradientfunctionfeedback.

Thisprocessexpressedregardingfourmonth-longtemperaturefeedbacksbythegraphicalrepresentationmethodinFigure1.

2.1.2simulationmodelheresaidthesimulationmodelmajorityofdetailsalreadyintroducedbyYavuzturkandSpitler.Inthispaperwillbeabletogiveitsbriefdescription.Thismodelessentialtargetistheapplicationintheconstructionenergyanalysis,thismodelcanforecastthesystemenergyconsumptiontakeeachhourastheunit.ThismodelnationalitywillconsummatebytheEskilsontheorydevelopsisdiscussedinhere.TheMasterG-functionincreasedtheforecastfrequencytoanhourseveraltimes.EskilsonusesfortodeterminetheG-functionthedatamodelnottobesuitablefortheshorttimecurvesurvey,usesanotherkindofdatamodeltosurveyaplacepairholeshorttimeinternalheatfeedback/outputpulsethetemperatureresponse.Regardingtheshorttimeinhotpulse,insideandoutsidetheradialdirectionpositionpairholehotshiftaffectstheaxialpositionhotshiftismuchbiggerthan.Fromthis,hasproducedonekindoftwo-dimensionalradialdirectionconstantvolumemodel.ThedetailsseealsoYavuzturk,etal.（1999）.

2.2verticalcircularholewellverticalcircularholewellusesindirectlycarryingontheheatchangewiththeground.Onekindusedfortostudytheverticalcircularholewellperformancethedatamodelalreadytoresearchanddevelop,itwascomposedbytwoparts:

Pairholeconstitutionnodemodel,innearbygroundwaterflowingandgroundheattransferconstantvolumemodel.Thiskindofmodelutilizationincludingtheheattransferwhichcausestothegroundwaterflowingisclearaboutprocessing（Rees,etal.2003）.ThiskindofmodelmayinspectverticalcircularKongJingtheperformanceintheuseinfluenceandthevitalsignificance.Itsperformanceismosthasinfollowingseveralparameterssensitively:

Currentcapacity,pairholelength,groundheatconductivityandhydraulicpressureconductivity.

2.3watersourceheatpumpJinandSpitler（2002a）hasinventedonekindofparameterestimatewatersourceheatpumpmodel.Thiskindofmodelcarriesonthethermodynamicanalysistothefreezingcirculation,thespecificheatexchangemodelissimpler,simultaneouslyismoreprecisethanthefreezingcirculationcompressormodel.Inthesecondpaper（Jin,etal.2002b）,carriesontheexpansiontothismodel,includingmaneuvertypeaircompressorsub-modelanduseantifreezestep.Inthemanufacturemanufacturertableofcontentsdatanarratedinmodeleachkindofparameterwhichthemultivariableoptimizationalgorithmestimates.Jin（2002）indetailnarratedtheparameterwhichthemultivariableoptimizationalgorithmandestimates.Comparestheequation-beingsuitabletypemodelwhichbeforethenproduces,thewatersourceheatpumpmodelismoreprecise.Jin（2002）alsointroducedonekindofsimilarwatersourceheatpumpmodel.

In2.4mixedstyleGSHPsystemthermalcompensationsourceheatpumpsystemthepairholecost