雙U型埋管地源熱泵土壤溫度場(chǎng)的研究與熱泵系統(tǒng)的經(jīng)濟(jì)性分析.pdf

1、天津大學(xué)碩士學(xué)位論文雙U型埋管地源熱泵土壤溫度場(chǎng)的研究與熱泵系統(tǒng)的經(jīng)濟(jì)性分析姓名：劉曉海申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：供熱、供燃?xì)?、通風(fēng)與空調(diào)工程指導(dǎo)教師：周志華20070601ABSTRACTAsoneofnewenergy—conservingandenvironment—protectedenergytechnologies，groundsourceheatpumpmayobtainmassiveregenerativeenergyby

2、consuminglessprimaryenergywhenourcountry’Senergysupplyisingrowingtension，increasingattentionhasbeenpaidtOthegroundsourceheatpumpandpeoplebegintopromoteitsuseBasedingroundsourceheatpumpworksofTianjinConstructionCommitteee

3、nergyconservingbuilding，thisarticlestudiedtemperaturechangesofsoilsurroundingdoubleU—typeverticaltubeheatexchangerbytestingsoil’StemperatureinentireheatingquarterTheanalysisshowed，doubleUtypeverticaltubeheatexchangercana

4、ffectthetemperatureofsoilthatis15m25mawayfromit，thatis，thermalradiusofdoubleU—typeverticaltubeheatexchangeris15m25mwhenheatexchangedofwelldepthofunitsincreases，thermalradiuswillincreaseStudyingsoil’Sheatstoringandcombini

5、ngexperiment，thisarticlecalculatedtotalheatthatthegroundsourceheatpumpunitabsorbs(emits)from(to)soilinwinter(summer)andanalysesthebalanceofthetwo，andlooksfbrmelawofsoil’Stemperaturechangestheresultsshowedafterayear’Soper

6、ationofthesystem，thesoil’stemperaturewillriseby23℃，andthesametime，thisarticleproposedcorrespondingsolutions，suchas“undergroundpipescoolingtower“、’’Undergroundpipesdomestichotwatersupplysystem’(applicablewhenheatabsorbedf

7、romsoilmorethanheatemittedtosoil)，or‘undergroundpipesauxiliaryheatingsource’’(applicablewhenheatemittedtosoilmorethanheatabsorbedfromsoil)TakingTianjinConstructionCommitteeenergyconservingbuildingasanexample，thisarticlea

8、doptsBINmethodandannualvalueofcostmethodtocomparetheinitialcapitalCOStsandoperationcostsofseveralairconditioningschemessuchasgroundsourceheatpump、electricityrefrigerationheatedbyexchangerfrommunicipalheatnetanddirectfire

9、dlithiumbromideabsorptiontyperefrigeratingmachineTheresultindicatesthattheinitialcapitalcostofgroundsourcepumpiShigherthanthemoftheothers，butitsoperationcostandannualvalueofcostaretheless，anditsrelativelymoreinitialcapit