Probabilistic analysis of air infiltration in low-rise buildings.pdf

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1、ARTICLEINPRESSBuildingandEnvironment43(2008)537–549www.elsevier.com/locate/buildenvProbabilisticanalysisofairinfiltrationinlow-risebuildingsKrystynaPietrzyk,Carl-EricHagentoftDepartmentofCivilandEnvironmentalEngineering,BuildingTechnology,ChalmersUniversityofT

2、echnology,41296Gothenburg,SwedenReceived1July2003;receivedinrevisedform3January2005;accepted15January2007AbstractTheprobabilisticmodel(PROMO)appliedtotheproblemofairinfiltrationinlow-risebuildingsispresented.Themodelallowsestimationoftheeffectofvariationsofclim

3、aticconditionsonairexchangeinabuilding.Probabilisticoutputintheformofprobabilitydensityfunctionofairchangerateformsagroundforreliabilityanalysisofadequateventilation.PROMOmodelisappliedtoanalysetheairexchangecausedbyairinfiltrationinahousesituatednearGothenburg

4、.Themodelisvalidatedonthebasisoftheresultsofmeasurementsobtainedforthathouse.r2007ElsevierLtd.Allrightsreserved.Keywords:Airinfiltration;Airchangerate;Wind;Temperature;Probabilisticmodelling;Reliabilityanalysis;FORM1.Introductionventilationcalculationsisgivenby

5、OrmeM[6].AllofthemaredeterministicmodelsusingdeterministicparametersofUncertaintyassociatedwiththeinfluenceofclimateonthestructureandshort-term(eightmodels)orlong-termtheperformanceofabuildingintheaspectofairexchange(sevenmodels)meteorologicaldataseries(usually

6、averagedcanbesignificant,especiallyforanaturallyventilatedoveran1-hperiod).Amongthesingle-zonemodelsonlybuilding.Itisimportanttobeawareofairchangeratetwouselong-termmeteorologicaldata.Itseemsthat(ACH)variationintimeandoftheimpactthiscanhaveonstatisticalpre-proc

7、essingoftheclimaticdataandstatisticalthereliabilityofabuildingperformanceagainstbadtreatmentoftheresultsofsimulationsareofferedintwoqualityofindoorair.Toaddresstheseissues,themodels.probabilisticmodelPROMO[1]ofairexchangeinlow-InPROMO,40-yearlongdataseriesareu

8、sedinordertorisebuildingsisdeveloped.Itisbasedonthetheoryevaluatetheparametersandtypesofthedistributionsofpresentedinthearticletitled‘‘Reliabilityanalysisintemperature,windspeed,an