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Statements

Subject Item
n2:RIV%2F68407700%3A21220%2F01%3A02071409%21RIV%2F2002%2FMSM%2F212202%2FN
rdf:type
skos:Concept n9:Vysledek
dcterms:description
This paper presents the results from the experimental and numerical study of a room with mixing ventilation, focused on the local mean age of air (LMA). The measurements were performed using the tracer gas concentration decay method. The numerical predictions were obtained from the computational fluid dynamics (CFD) module of the latest version of the ESP-r software. In order to address the requirement for a proper choice of the number of control volumes in CFD, the analysis is made by comparing the results from two consequently finer numerical grids. Some guidelines for practising engineers are given concerning the number of numerical grid points and their distribution, reasonable for buildings energy simulations. The guidelines are based on common CFD rules supported by examples from the presented computations. Both the fine and the coarse grid computations gave results, which were very close to the measurements. An important issue of the present study is that the coarse grid computa This paper presents the results from the experimental and numerical study of a room with mixing ventilation, focused on the local mean age of air (LMA). The measurements were performed using the tracer gas concentration decay method. The numerical predictions were obtained from the computational fluid dynamics (CFD) module of the latest version of the ESP-r software. In order to address the requirement for a proper choice of the number of control volumes in CFD, the analysis is made by comparing the results from two consequently finer numerical grids. Some guidelines for practising engineers are given concerning the number of numerical grid points and their distribution, reasonable for buildings energy simulations. The guidelines are based on common CFD rules supported by examples from the presented computations. Both the fine and the coarse grid computations gave results, which were very close to the measurements. An important issue of the present study is that the coarse grid computa
dcterms:title
Experimental and Numerical Study of Local Mean Age of Air Experimental and Numerical Study of Local Mean Age of Air
skos:prefLabel
Experimental and Numerical Study of Local Mean Age of Air Experimental and Numerical Study of Local Mean Age of Air
skos:notation
RIV/68407700:21220/01:02071409!RIV/2002/MSM/212202/N
n3:strany
773;779
n3:aktivita
n19:Z
n3:aktivity
Z(MSM 210000011)
n3:dodaniDat
n8:2002
n3:domaciTvurceVysledku
n14:4211731
n3:druhVysledku
n12:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
679926
n3:idVysledku
RIV/68407700:21220/01:02071409
n3:jazykVysledku
n20:eng
n3:klicovaSlova
Building simulation; computational fluid dynamics; indoor air quality; local mean age of air; tracer gas technique
n3:klicoveSlovo
n6:computational%20fluid%20dynamics n6:Building%20simulation n6:indoor%20air%20quality n6:tracer%20gas%20technique n6:local%20mean%20age%20of%20air
n3:kontrolniKodProRIV
[9FA96FB69BC4]
n3:mistoKonaniAkce
Rio de Janiero
n3:mistoVydani
Kyoto
n3:nazevZdroje
Building Simulation 2001
n3:obor
n13:JN
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
9
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n8:2001
n3:tvurceVysledku
Barták, Martin
n3:typAkce
n21:WRD
n3:zahajeniAkce
2001-08-13+02:00
n3:zamer
n4:MSM%20210000011
s:numberOfPages
7
n15:hasPublisher
IBPSA
n7:isbn
85-901939-3-4
n16:organizacniJednotka
21220