Updates to the China Design Standard for Energy Efficiency in public buildings

TitleUpdates to the China Design Standard for Energy Efficiency in public buildings
Publication TypeJournal Article
Year of Publication2015
AuthorsHong, Tianzhen, Cheng Li, and Da Yan
Abstract

The ChinaDesignStandardforEnergyEfficiency inpublicbuildings(GB50189)debutedin2005whenChina completedthe10thFive-YearPlan.GB50189-2005playedacrucialroleinregulatingtheenergyefficiency inChinesecommercialbuildings.Thestandardwasrecentlyupdatedin2014toincreaseen-ergy savingstargetsby30%comparedwiththe2005standard.Thispaperreviewsthemajorchangestothe standard,includingexpansionofenergyefficiency coverageandmorestringentefficiency require-ments. ThepaperalsodiscussestheinterrelationshipofthedesignstandardwithChina'sotherbuildingenergy standards.Furthermore,comparisonsaremadewithASHRAEStandard90.1-2013toprovidecontrasting differencesinefficiency requirements.Finallyrecommendationsareprovidedtoguidethefuture standardrevision,focusingonthreeareas:(1)increasingefficiency requirementsofbuildingenvelopeandHVACsystems,(2)addingawhole-buildingperformancecompliancepathwayandim-plementing arulesetbasedautomaticcodebaselinemodelgenerationinanefforttoreducethedis-crepancies ofbaselinemodelscreatedbydifferenttoolsandusers,and(3)addinginspectionandcommissioning requirementstoensurebuildingequipmentandsystemsareinstalledcorrectlyandoperateasdesigned.

LBNL Report Number

LBNL-1004493

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