About: Experimental and Numerical Study of Local Mean Age of Air

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 (en)
Title	Experimental and Numerical Study of Local Mean Age of Air Experimental and Numerical Study of Local Mean Age of Air (en)
skos:prefLabel	Experimental and Numerical Study of Local Mean Age of Air Experimental and Numerical Study of Local Mean Age of Air (en)
skos:notation	RIV/68407700:21220/01:02071409!RIV/2002/MSM/212202/N
http://linked.open.../vavai/riv/strany	773;779
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 210000011)
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Barták, Martin
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	679926
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/01:02071409
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Building simulation; computational fluid dynamics; indoor air quality; local mean age of air; tracer gas technique (en)
http://linked.open.../riv/klicoveSlovo	local mean age of air tracer gas technique computational fluid dynamics Building simulation indoor air quality
http://linked.open...ontrolniKodProRIV	[9FA96FB69BC4]
http://linked.open...v/mistoKonaniAkce	Rio de Janiero
http://linked.open...i/riv/mistoVydani	Kyoto
http://linked.open...i/riv/nazevZdroje	Building Simulation 2001
http://linked.open...in/vavai/riv/obor	JN
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2001
http://linked.open...iv/tvurceVysledku	Barták, Martin
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2001-08-13 (xsd:date)
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20210000011
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	IBPSA
https://schema.org/isbn	85-901939-3-4
http://localhost/t...ganizacniJednotka	21220

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