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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
