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《ASHRAE.Application-1999.44 CONTROL OF GASEOUS INDOOR AIR CONTAMINANTS》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、CHAPTER44CONTROLOFGASEOUSINDOORAIRCONTAMINANTSGaseousContaminants...........................................................44.1EconomicConsiderations.....................................................44.17Sources...................................................
2、.................................44.4Safety.....................................................................................44.17ProblemAssessment...............................................................44.8Installation,Start-Up,andCommissioning...........
3、...............44.17ControlStrategies...................................................................44.9OperationandMaintenance.................................................44.18ControlbyAirCleaning.......................................................44.11E
4、nvironmentalInfluencesonAirAirCleaningDesign.............................................................44.14Cleaners.............................................................................44.18EnergyConcerns....................................................
5、...............44.16TestingofMedia,Equipment,andSystems...........................44.18AMBIENTaircontainsnearlyconstantamountsofnitrogenTheconversionsbetweenppmvandmg/m3(basedontheideal(78%byvolume),oxygen(21%),andargon(0.9%),withvary-gaslaw)areingamountsofcarbondio
6、xide(about0.03%)andwatervapor(upto3.5%).Inaddition,tracequantitiesofinertgases(neon,xenon,ppmv=8.314c(273.15+t)/Mp(1)krypton,helium,etc.)arealwayspresent.Gasesotherthanthoselistedareusuallyconsideredcontaminants.Theirconcentrationsarec=ppmv´Mp/[8.314(273.15+t)](2)al
7、mostalwayssmall,buttheymayhaveseriouseffectsonbuildingoccupants,constructionmaterials,orcontents.Removalofthesewheregaseouscontaminantsisoftendesirableornecessary.8.314=gasconstant,J/(K·g-mole)Traditionally,indoorgaseouscontaminantsarecontrolledwithc=concentration,m
8、g/m3ventilationairdrawnfromoutdoors,butavailableoutdoorairmayM=grammolecularmassofcontaminant,g/g-molecontainundesirablegaseouscontaminant
