建筑外墻熱工性能現(xiàn)場動態(tài)檢測方法分析.pdf

1、長安大學碩士學位論文建筑外墻熱工性能現(xiàn)場動態(tài)檢測方法分析姓名：阮俊玲申請學位級別：碩士專業(yè)：供熱、供燃氣、通風及空調工程指導教師：官燕玲20110614AbstractWiththedevelopmentoftechnologyandsocialprogress，thedemandforenergyisincreasinginastate，thussavingenergyforsustainabledevelopmentofsociet

2、yplaysavitalroleTheproportionofbuildingenergyconsumptioninthetotalsocialenergyconsumptioncontinuestoincreaseinourcountrysomuchmoreemphasisonbuildingenergyefficiencyispaidSince2001thestatehaspromulgatedaseriesofbuildingen

3、ergyefficiencystandardsandrelatedregulationstoensuretheprogressofthebuildingenergyefficiencyHaveenergyconservationbuildingserectedoneafteranotherinrecentyears，testingofbuildingenergy—savingworkhasbeenaroundthecomerInbuil

4、dingenergysavingdetectionenvelopedetectionofheattransfercoefficientisveryimportant朋1eexistingdetectionmethodsofbuildingenvelopeheattransfercoefficientwasdescribedinthispaperandconcerningrequirementoftheonsitedetectionofp

5、lantandequipment，whichwaseasytocarrysimpleoperationeasytoinstall，testresultsareaccurate，thentheheatflowmetermethodWasselectedtodetecttheconductionthermalresistanceofexternalwallinadormitoryBythecomparisonofmeasuringvalue

6、andthedesignedvalueofthethermalresistance，thedifferencebetweenthetwowasfoundout，andtheanalyzeethereasonsforthedifferencesandputforwardthemethodofnumericalsimulationforwallheatconductionanalysisThetheCFDsoftwareFLUENTwasa

7、doptedtothefollowinganalysises：bythecomparativeanalysisthesimulationresultswitllthecalculatedvalueinthecaseofsteadyandunsteadythree—dimensionalwallheatconductionprocess，toverifythefeasibilityofmodel；ThenthemeasureddataWa

8、susedasthenumericalsimulationinputparameterstodothenumericalcalculationsofthetestingwallinunsteadyandnumericalvaluesofthethermalresistanceofthewallandtestingthevalueanddesignvalueofthetestwereanalyzed；AppliedFLUENTtoanal

9、ysisonedimensionalheatconductionareasofthetestingthewall，obtainingtheareasinsteadyandunsteadystateheatrespectivelywhichwouldbeusefulforon—sitedetectionofareferencelayoutofthemeasuringpoint；Thecalculatingresultsofatypical

10、dayontheseasonsresultsshowedthatusingthearithmeticmeanmethodtocalculatethethermalresistancewouldgetgoodaccuracywhenconsideringthecyclicalnatureoftheoutdoortemperaturechangesintheone—dimensionalNonstateheatconductionprobl

11、em；Atlastthroughthethermalperformanceanalysisofthewallintransitionseasons，thetemperaturedifferenceWasobtainedforthein—situdetectionintheseseasonsKeywords：insitudynamicdetection；externalwallthermalresistance；heatflowmeter