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ID:44011425
大小:580.47 KB
页数:22页
时间:2019-10-17
《ASHRAE.4529-2002 Measurement and Simulation of the IAQ Impact 》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、4529ReprintedfromtheInternationalJournalofHeating,Ventilating,Air-ConditioningandRefrigeratingResearch.MeasurementandSimulationoftheIAQImpactofParticleAirCleanersinaSingle-ZoneBuildingS.J.EmmerichS.J.NabingerAssociateMemberASHRAEThisarticledescribesthefirstphaseofanefforttoevaluatetheabilityofmu
2、ltizoneairflowandpollutanttransportmodelstopredicttheimpactofresidentialIAQcontroltechnologies.Mea-surementsoftheperformanceofseveralparticulateaircleaningdevicesandrelatedparticletransportparameterswereperformedinaone-roomtesthouse.Thesemeasurementswereusedtocalculatebuildingairchangerates,part
3、icledepositionratesandpenetrationfactors,andaircleanerremovalefficiencies.Twoseparate24htestswereperformedwithtwoofthetestedaircleaners,andthemeasuredairchangeratesandparticleconcentrationswerecomparedtopre-dictedvaluesobtainedwiththeCONTAMmodel.Forbothtests,simulated24haverageairchangerateswere
4、within5%ofmeasuredairchangeratesandsimulated24haverageparticleconcentrationswerewithin30%ofmeasurementsforallparticlesizes.INTRODUCTIONAneffortisunderwaywithintheBuildingandFireResearchLaboratory(BFRL)oftheNationalInstituteofStandardsandTechnology(NIST)todevelopresidentialperformancestan-dardsco
5、veringanumberofbuildingattributes,includingindoorairquality(Persily1999).Per-formancestandardsspecifyhowcomponentsmustperforminsteadofthemannerinwhichthatperformanceistobeobtained.Thestandardsrelevanttotheindoorenvironmentwillultimatelybebasedontheindoorlevelsofspecificairbornecontaminantsandthe
6、rmalcomfortparameters.Earlyversionsofthestandards,however,willlikelybebasedonperformanceintermsofbuild-ingventilationratesduetothecurrentlackofknowledgeofhumanresponsetoindoorpollutantlevelsandotherenvironmentalparameters.Becausemeasuringventilationrates,contaminantconcentrationsandthermalcomfor
7、tparametersinalargenumberofbuildingswouldbeexpen-sive,compliancewiththesecriteriawilllikelyinvolvetheuseofpredictivemethods.Thesepre-dictivemethodswillbebasedonbuildingventilationandindoorairqualitymodelssuchastheCONTAMmulti
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