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ID:28710524
大小:13.77 MB
页数:73页
时间:2018-12-13
《内置分离式热管墙体的传热特性研究-土木工程;供热、供燃气、通风及空调工程专业毕业论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、万方数据II硕士学位论文ABSTRACTResearchonheatpipeusedinthebuildingheatingfield,isstillintheinitialstage.Thispaperisbasedonmakingfulluseofrenewableenergy(solarenergyresources),adoptedpassivedesignconcept,combinedwiththeheatpipetechnology,presentasolar—builtinseparatetypeheatpipewallheatingsystem.Curre
2、ntly,researchontheheattransfercharacteristicsofthewallinstalledheatpipeislittle,thelargestproportionisstillresearchedontheheattransfercharacter-isticsoftheheatpipeitself.Themainworkofthispaperinordertodeterminethestructureoftheheatpipeheatingwall.Analysisoftheinfluenceofwallstructureforman
3、dstructureinstalledontheheattransfercharacteristicsofheatpipe.Presenttechnicalmeasurestoenhanceheattransfercapabilitybetweenheatpipeandthewall.Basedontheresearchoffloorradiantheattransfer,Inordertostudythefloorradiationheattransferisthebasisofthisresearch,establishedthewallheatingsystemmat
4、hematicalmodel.Accordingtothepurposeofthisreaearch,makesuitableassumptionsonheattransferprocessofthewallheatingsystem,establishedtwodimensionalheattransfermodelofthewallheatingsystem,incaseofthesystemisincontinuousoperationcondition,withoutconsideringtheheatsourceintermittentoperation(disc
5、ontinuityofsolarenergyresources),theheattransferprocessforsteadystateprocess,Usednumericalcalculationofheattransferprocessoftheseparatedtypeheatpipewallbuiltinthesimulationsoftware.Inthispaper,thequantityofheatpipe,effectoffrolength,fmthickness,layerofmaterialfactorsontheheattransferpowero
6、ftheheatpipewall,attheSalTletimeanalysisthesurfacetemperaturedistributionandheatfluxdensity.Solarenergy—built-inseparatetypeheatpipeheatingwallsystem,hasthecharacteristicsofworkwithnon—power,andrealizedthezeroenergyconsumptionoftheheatingprocess.Thenumberofheatpipehasalittleinfluentonitshe
7、atfluxdensity.Whenthefillingandlevelingmaterialiscementmortarandnotinstalledthefinonheatpipe,whenthenumberofheatpipeis4,thesurfaceheatfluxis432.3W/m2;whenincreasedto12,theheatfluxisupto398.8W/m2,justincreasedby7.7%.Installedthefmonheatpipecansignificantlyenhan
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