建筑节能标准展望郎四维TechSession_BuldingsEE

1EnergyEfficiencyDesignStandardsforBuildingsEnergyEfficiencyDesignStandardsforBuildings------ChinaBuildingEnergyEfficiencyAssociationChinaBuildingEnergyEfficiencyAssociationLangLangSiweiSiwei2004/11/102004/11/10--11,11,KunmingKunmingOutlineOutlineBackgroundBackgroundEnergyEfficiencyDesignStandardsforBuildingsEnergyEfficiencyDesignStandardsforBuildingsImplementationisaCriticalLinktoAchievingImplementationisaCriticalLinktoAchievingSustainableDevelopmentSustainableDevelopmentConclusionConclusion2BackgroundBackgroundSignificantAnnualConstructionSignificantAnnualConstruction„„11.6.6--1.9billion1.9billionmm22ofnewbuildingsinChinaannuallyofnewbuildingsinChinaannually„„OfwhichOfwhich::„„550000--600millionm600millionm22residentialbuildings(urban)residentialbuildings(urban)„„400400--500millionm500millionm22publicandindustrialpublicandindustrial„„700700--800millionm800millionm22residentialbuildings(rural)residentialbuildings(rural)BuildingCivilBuildingIndustrialBuildingResidentialBuildingPublicBuildingBuildingSectorsBuildingSectors„„1616--1919mm22::„„55--66mm22„„44--55mm22„„77--88mm223ClimateZones&TheirHeating,A/CDemandsClimateZones&TheirHeating,A/CDemands„„„„„„„„„„„„SevereCold:HeatingSevereCold:Heating„„Cold:Heating&A/CCold:Heating&A/C„„HSCW:A/C&HeatingHSCW:A/C&Heating„„HSWWzone:A/CHSWWzone:A/C„„Temperate:SomeheatingorTemperate:SomeheatingorbothbothRapidDemandforA/C&HeatingRapidDemandforA/C&HeatingChinaistheNo.1airconditionerChinaistheNo.1airconditionermanufacturerintheworldmanufacturerintheworld(JARN)(JARN)20042004““(RAC)(RAC)””//““(PAC)(PAC)””56005600(2200(2200))3636%%AccordingtoJARN,roomACAccordingtoJARN,roomAC(RAC)/(RAC)/““packagedpackaged””AC(PAC)AC(PAC)willtotal56millionsetsin2004,willtotal56millionsetsin2004,20millionfromChina(36%)20millionfromChina(36%)4EnergyUseinBuildingsEnergyUseinBuildings„„„„2001200155%55%„“”GB50034-2004„„Energyconsumptionincludes:A/C,heating,lighting,Energyconsumptionincludes:A/C,heating,lighting,appliance,cookinganddomestichotwater.appliance,cookinganddomestichotwater.„„In2001,heatingandA/CcomprisedIn2001,heatingandA/Ccomprised55%55%ofChinaofChina’’senergysenergyuseuse..„„Goalofenergyefficiencydesignstandards:A/CandHeatingGoalofenergyefficiencydesignstandards:A/CandHeatingenergyefficiency.energyefficiency.NationalLightingDesignStandardforBuildingshasbeenissued.RapidIncreaseinBuildingsEnergyUseRapidIncreaseinBuildingsEnergyUse1978197810%10%2001200127.45%27.45%Buildingsenergyusemadeup27.45%ofChina’stotalcommercialusein20015EnergyEfficiencyDesignStandardsforBuildingsEnergyEfficiencyDesignStandardsforBuildingsEnergyEfficiencyDesignStandardsforBuildingsEnergyEfficiencyDesignStandardsforBuildings„„„„JGJ26JGJ26--959596967711„„JGJ134JGJ134--2001200120012001101011„„JGJ75JGJ75--2003200320032003101011„„„„20042004„„„„„„„„ResidentialBuildingStandardsResidentialBuildingStandards„„Severecold&coldzonesSeverecold&coldzonesJGJ26JGJ26--9595implementedJuly1implementedJuly119961996„„Hotsummer&coldwinterzoneHotsummer&coldwinterzoneJGJ134JGJ134--20012001implementedOct.1,2001implementedOct.1,2001„„Hotsummer&warmwinter:JGJ75Hotsummer&warmwinter:JGJ75--2003,implementedOct.1,20032003,implementedOct.1,2003„„PublicBuildingStandardPublicBuildingStandard„„Tobecompletedbytheendof2004Tobecompletedbytheendof2004„„TwowaystocontrolenergyconsumptionTwowaystocontrolenergyconsumption„„Envelope:insulation,isolation,Envelope:insulation,isolation,airtightnessairtightnessperformanceperformance„„HVACandLightingHVACandLightingEnergyefficiencyratioofequipmentandsystemEnergyefficiencyratioofequipmentandsystem6EnergyEfficiencyDesignStandardsforBuildingsEnergyEfficiencyDesignStandardsforBuildingsJGJ26-95:ImplementedJuly1,1996.199671JGJ134-2001:ImplementedOctober1,20012001101JGJ75-2003:ImplementedOctober1,20032003101–2004Energyefficiencydesignstandardforpublicbuildings–endof2004JGJ134JGJ134JGJ75JGJ75LBNLLBNLEFEFTechnicalsupportprovidedbyLBNLandNRDCEnvelopeEnvelopeHVACHVACCompliancePathsCompliancePathsPrescriptivePrescriptivePerformanceReferencebuildingECFrefECFrefDesignedbuildingECFECFECFECF≤≤ECFrefECFrefYesYesNoNo7ImplementationisaCriticalLinktoImplementationisaCriticalLinktoAchievingSustainableDevelopmentAchievingSustainableDevelopmentDoubleEnergyUsein2020DoubleEnergyUsein2020„„20202020„„20202020GDPGDP20002000““””„„20202020GDPGDP20002000„„Toachievethe2020developmentgoalsandensureGDPisToachievethe2020developmentgoalsandensureGDPisquadrupledfrom2000,energyconsumptioninquadrupledfrom2000,energyconsumptioninthethebuildingsbuildingssectormustonlydouble.sectormustonlydouble.82000200020202020EnergyUseForecast,2000EnergyUseForecast,2000--20202020„„„„20202020„„FFewnewresidentialbuildingscomplybecausethelaws,codes,andadministrativesystemareinsufficient.Economicincentivesarelacking.„Withstrongimplementationenergyconsumptionwillonlydoublein2020.Weakimplementationwillleadtoaquadruplingandimpedeeconomicdevelopment.ConclusionConclusion„„88--99mm22„„„„„„„Thebuildingsindustryhasundergonerapiddevelopment,with800~900millionm2floorareaforresidentialand