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1、建筑遮阳和日光照明Buildingshadinganddaylightingcontrol许鹏教授博士博导机械工程学院PengXuProfessor,PhD,PE,MBACollegeofMechanicalEngineeringContents内容纲要Importanceofshadingcontrolanddaylighting遮阳和自然采光的重要性Shadingstrategies常见遮阳策略Daylightingandbuildingenvelope日光照明与建筑立面Sampleproj
2、ectsandsuccessfulstories成功案例Software计算软件2Windows,architecturelovethem,occupantslovethem.Theyaremodern,stylish,providebetterview,easytobuild,easytomaintainWhatisthepain?PublicbuildingsOfficeResidentialSmallcommercials3Butengineershatethem,regulatorsdo
3、notwantthem,becausetheyarewastingenergyWhatisthepain?BuildingcodesallovertheworldareusingdescriptionorenergybudgetmethodtoregulatethewindowtowallratioInsummer,directsolarheatgainaccountsformorethan50%ofcoolingloadInwinter,wallinsulationvalueisabout10
4、timeshigherthanthatofconventionalwindows.Therefore,buildingsincoldclimatecanonlyhavesmallwindowsWindowsaremoreimportantthananyotherbuildingcomponentsintermofenergyimpactIncoldclimate,morethan50%heatlossarethroughwindowsInhotclimate,directsolarheatgai
5、nisabout1/3ofcoolingloadLightingenergyconsumptionismorethanheatingandcoolingcombinedincommercialbuildingsLow-energyintensitydesignandwindowsLow-energyintensitydesignandwindowsAirconditioningpeakloadanalysisinsummer50%ofbuildingenvelopeloadarecausedby
6、windowsWindowshadinginsummerandwindowinsulationinwinteraretwocriticalissuesYearofBuilt,GovernmentofficebuildingbuiltatdifferentyearsEnergysurveyresultsYearofbuiltShang-haiWuhanShen-zhenFuzhouChongqingTotalAverageAnnualElectricityUse(kWh/m2）195040.973
7、.257.11970sorbefore73.865.872.71980-1990s125.467.567.570.72000s138.266.853.766.2Unknown62.859.561.1All135.062.859.568.058.666.3MaximumAnnualElectricityUse(kWh/m2）195052.678.278.21970sorbefore138.487.1138.41980-1990s125.4128.495.7128.42000s205.0248.21
8、21.5248.2Unknown73.4105.0105.0All205.073.4105.0248.2121.5248.2MinimumAnnualElectricityUse(kWh/m2）195029.268.229.21970sorbefore15.744.515.71980-1990s125.421.442.021.42000s104.719.25.15.1Unknown47.330.030.0All104.747.330.015.75.15.1Samplesize1950224197
