ASHRAE.4508-2002 A Critical Review on Studies of Volatile Organic Compound

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1、4508(RP-1097)ACriticalReviewonStudiesofVolatileOrganicCompound(VOC)SorptionbyBuildingMaterialsJinsongZhangJianshunZhang,Ph.D.MemberASHRAEMemberASHRAEQingyanChen,Ph.D.XudongYang,Ph.D.MemberASHRAEMemberASHRAEABSTRACTVolatileorganiccompounds(VOCs)constituteanimpor-tantclassofindoor-aircontaminan

2、ts.Buildingmaterials,Thepurposeofthisinvestigationistoanalyzetheprosandwhichhavebeendevelopedmainlyfromtheviewpointofconsofexistingsorptionmodels,aswellasexperimentalmeth-constructionandenergyconservation,havebeenacknowl-ods.Inaddition,itsummarizesexistingsorptiondatainorderedgedasmajorVOCsou

3、rcesindoors.EvidencefromavarietytounderstandthephenomenonofVOCsorptiononbuildingofinvestigationsandsystematicstudiessuggeststhatbuildingmaterialsbetterandtodirectfutureresearch.Wefoundthatmaterialscanalsoaffectthetransportandtheremovalofexistingsorptionmodelscanbegenerallyclassifiedintoeither

4、indoorVOCsbysorptionanddesorption.There-emissionoffirstorderadsorption/desorptionratemodelsorequilibrium-sorbedVOCscandramaticallyelevateVOCconcentrationsininterfacemodels.Theadsorption/desorptionratemodelsaretheindoorenvironmentformonthsoryearsafterasourcesimpleandeasytouse,butthemodelparame

5、tershavetobeevent(Tichenoretal.1988;Berglundetal.1988;Sparksetal.obtainedfromexperimentaldatabycurvefitting.Theparam-1994).Materialscapableofdepositing,adsorbing,and/oretersoftheequilibrium-interfacemodelscanbeobtainedthroughindependentmeasurements,butlackingmaterialaccumulatingpollutantscani

6、nfluenceindoorairqualitypropertydataandhighcomputingcostshindertheirapplica-(IAQ)duringtheentireservicelifeofabuilding(Nielsentions.ThesorptionofVOCsonbuildingmaterialsisusually1987).Therefore,anaccuratecharacterizationofthesorptionmeasuredbythewidelyusedsmall-scalechambertestmethod.bybuildin

7、gmaterialsandthesorptionimpactonIAQisThesinkstrengthcanbeaffectedbythechemicalpropertiesofimportant.VOCsorptionbybuildingmaterialsisawell-VOCs,physicalpropertiesofmaterials,andenvironmentalknown,butpoorlyunderstoodphenomenon.Thoughitcanbecond