Analysis of interzonal natural convective heat and mass flow: Benchmark evaluation

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TypeArticle
Journal titleBuilding Research Journal
Volume3
IssueFall 2
Pages3553; # of pages: 19
AbstractThis paper presents an analysis of interzonal natural convective heat and mass transfer through doorway Apertures using a three-dimensional computation. The main objectives of the study were to benchmark evaluate a public domain Computational Fluid Dynamics (CFD) computer program in predicting interzonal convective heat and mass transfer, and also to analyze the interzonal convective air flow patterns in a two-zone enclosure in order to better understand the effect of the aperture size on the natural convective interzonal heat and air mass flow. Computational results are compared to measurements from full scale experiments in a two zone realistic building. The experiments involved natural convective interzonal heat and mass transfer through various doorway-like aperture configurations between two zones in a building. The air flow through the aperture was driven primarily by a small zone-to-zone temperature differential in the range l°C to 2.5°C, Computations are reported for air (Pr = 0. 71), aperture height relative to the enclosure height in the range 0. 75 to 1, and aperture width relative to the enclosure width in the range 0.29 to 0. 79. Computed temperature and velocity of the indoor air agree reasonably well with the measured data. Computed coefficient of discharge and Nusselt number for natural convective interzonal air mass and heat flow also agree quite well with those measured and with theoretically derived coefficients in the literature.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-3951
NRC number38552
5483
NPARC number20386781
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Record identifierbaf7be08-a6d8-41e8-8eb5-2a3e72884add
Record created2012-07-25
Record modified2016-05-09
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