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Title: Data-based mechanistic modelling approach to determine the age of air in a ventilated space
Authors: Van Buggenhout, Stijn ×
Zerihun Desta, Tadiwos
Van Brecht, Andres
Vranken, Erik
Quanten, Stijn
Van Malcot, W
Berckmans, Daniel #
Issue Date: 2006
Publisher: Pergamon-elsevier science ltd
Series Title: Building and environment vol:41 issue:5 pages:557-567
Abstract: In literature, local mean age of air is used as an important index to evaluate indoor air quality in ventilated rooms. In this research, a data-based mechanistic approach is used to model the spatial-temporal mass distribution in an imperfectly mixed forced ventilated installation. A first-order transfer function model has proved to be sufficiently good in describing the mass transfer dynamics (R-t(2) = 0.987) of the system. Furthermore, it was possible to fully understand the physical meaning of the model parameter. The parameter is found to be an inverse of the age of air. This Data-Based Modelling approach proved to be more robust when dealing with measurement noise. Finally, the modelled age of air was validated with a classical step up determination of the age of air for experimental data. Good correlation (R-t(2) = 0.77) was found between both results, which proved the physical background of the model parameter. (c) 2005 Elsevier Ltd. All rights reserved.
ISSN: 0360-1323
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division M3-BIORES: Measure, Model & Manage Bioresponses (-)
× corresponding author
# (joint) last author

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