能耗模拟及相关软件介绍(英文ppt)课件.ppt

能耗模拟及相关软件介绍(英文ppt)课件.ppt

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时间:2020-07-27

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1、1.BackgroundThepowerconsumedinbuildingsisbecomingmoreandmoretremendous.Sincethedemandforelectricityishighinthesummer,waystoreduceenergyuseinbuildingisverymuchencouragedbythegovernment.Thismayleadtostrictrulesforownersandnewhomebuildersandtheuseofthet

2、hermalinsulationordifferentbuildingmaterialsforbothresidentialandcommercialbuildings.2.ImportanceEnergysimulationinbuildingsoffersavaluabletoolforengineersandarchitectstoevaluatebuildingenergyconsumptionbeforethebuildingisbuilt.Itcanalsobeusedtostudy

3、theimpactofbuildingmodificationonbuildingenergyuse.Alternativedesignsormaterialscanimmediatelybeevaluatedtoseehowmuchtheyaffecttheannualenergyconsumption.Thiscouldleadtoselectingenergyefficientdesignswithoutsacrificinghumancomfort.Allthismaybedoneina

4、relativelyshortperiodoftime,onahomePC.3.CalculationmethodsofenergyconsumptionDegree-daymethodEquivalentcoolingdaysmethodBinmethodComputationalsimulationBasedondynamicloadcalculation,andhourlyweatherdataisamustforthecomputersimulationprograminordertom

5、akehourlyenergysimulations.Thesedataconsistsmainlyofthefollowinghourlydata:dryandwetbulbtemperatures,humidityratio,atmosphericpressure,windspeedanddirectionandsolarradiationdata.4.Introductionofsimulationtools(1)DOE-2Hourly,whole-buildingenergyanalys

6、isprogramcalculatingenergyperformanceandlife-cyclecostofoperation.Canbeusedtoanalyzeenergyefficiencyofgivendesignsorefficiencyofnewtechnologies.Otherusesincludeutilitydemand-sidemanagementandrebateprograms,developmentandimplementationofenergyefficien

7、cystandardsandcompliancecertification,andtrainingnewcorpsofenergy-efficiencyconsciousbuildingprofessionalsinarchitectureandengineeringschools.InputHourlyweatherfileplusBuildingDescriptionLanguageinputdescribinggeographiclocationandbuildingorientation

8、,buildingmaterialsandenvelopecomponents(walls,windows,shadingsurfaces,etc.),operatingschedules,HVACequipmentandcontrols,utilityrateschedule,buildingcomponentcosts.Availablewitharangeofuserinterfaces,fromtext-basedtointeractive/graphicalwindows-basede

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