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1、VentilationofindoorformaldehydeandestimationofitsemissionandairexchangerateJou,1忱fofHarbinInstituteofTechnolo(NewSeries),Vo1.14,No.1,2007VentilationofindoorformaldehydeandestimationofitsemissionandairexchangerateWANGKun
2、,ZHAOQing.1iang1.LIWen-pu2.LIY
3、u.huaI王琨.赵庆良,李文朴,李玉华(1.SchoolofMunicipalandEnvironmentalEngineering,Had'inInstituteofTechnology,Harbin150090,China,E—mail:wangO2kun@126.COB:2.TianjinInstituteofUrl,anConstruction,Tianjin300384,China)Abstract:ResidentslivinginthecoldareassuchasHarbing
4、enerallyexperiencearesidencetimeofapproxi—mately6monthsinchillywinterwithoutfrequentnaturalventilation.TofindouttheinfluenceofashortDeriodofventilationontheindoorformaldehydeconcentrationinsideanewbuilding,aninvestigationwasconductedfortheinstanceoft
5、wiceventilationinadaythroughwindowopening.Theresultsshowedthattheinitialconcentra.tionofformaldehydewas3.53—8.48timesashighastheconcentrationafterl0rainventilation.Afterclosingthewindow,theindoorformaldehydeconcentrationincreasedwithtimeandfollowedan
6、exponentialequationofC=Coexp(一bt)+(a+C)[1一exp(一bt)]withcorrelationcoefficient(R)of0.945—0.999,basedonthestatisticalanalysisofl4groupsofmeasurementdata.Thedevelopedequationcanbeusedtoestimatetheemissionrateofindoorformaldehydesourcesandtheairexchanger
7、ateofthetestloomsimultaneously.Keywords:indoorair;formaldehyde;ventilation;airexchangeCLCnumber:x5l】Documentcode:AArticleID:l005-9l13(2007)0l-004l-04Withcontinuousdevelopmentofeconomy.im.provementoflivingconditionsandinhabitationenviron.ment,thepubli
8、cconsciousnessofenvironmentalpro.tectionhasbeenraisedandmoreattentionhasbeenpaidtoindoorairquality.Becauseformaldehydeaswellasotherindoorairpollutantsareubiquitousinsideroomsforthenewlybuiltordecoratedbuildings.itisurgenttofindanefficientwaytoremovet
9、hesepollu.tantsfromindoorair【.Theavailablemeasureswidelyusedtoabateindoorairpollutionincludeemissionsourceelimination.naturalorforcedventilation,andindoorairpurification-3j.Amongthemventilationisthemostorigina1.economical,convenient,andeffec-tivemeth
