Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9846
Title: A theoretical model to predict plume rise in shaft generated by growing compartment fire
Authors: Sun, XQ
Hu, LH
Chow, WK 
Xu, Y
Li, F
Keywords: Buoyant plume
Compartment fire
Experiment
Scale model
Vertical shaft
Issue Date: 2011
Publisher: Pergamon Press
Source: International journal of heat and mass transfer, 2011, v. 54, no. 4, p. 910-920 How to cite?
Journal: International journal of heat and mass transfer 
Abstract: A theoretical model for predicting the one-dimensional transient buoyant plume rise in a vertical shaft is developed, with convective heat transfer from hot up-rising flow to the side walls considered. The rising plume is induced by a t-square growing fire in a compartment adjacent to the vertical shaft. The initial plume characteristics at the bottom of shaft nearing the compartment are described using a virtual point source model. The afterward rising of the plume is then solved by considering the conservation law of the mass and energy. Experiments and corresponding CFD simulations are carried out in a 1/8 scale vertical shaft to validate the theoretical model. The measured values are compared with the model proposed in this paper and that of Tanaka. Results show that the Tanaka model somewhat overestimates the up-rising speed of the buoyant flow, while the predictions by the model proposed here agree well with the CFD simulation and measured values.
URI: http://hdl.handle.net/10397/9846
ISSN: 0017-9310
EISSN: 1879-2189
DOI: 10.1016/j.ijheatmasstransfer.2010.10.012
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