Mechanical smoke exhaust for small retail shop fires

C. L. Shi; Y. Z. Li; R. Huo; B. Yao; Wan Ki Chow; Nai Kong Fong

doi:10.1016/j.ijthermalsci.2004.10.002

Mechanical smoke exhaust for small retail shop fires

C. L. Shi, Y. Z. Li, R. Huo, B. Yao, Wan Ki Chow, Nai Kong Fong

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

29 Citations (Scopus)

Abstract

The operation of mechanical exhaust in a small retail shop fire will be studied with a two-layer model. Different equations on axisymmetric fire plume entrainment and spill plume will be considered. A zone model has been developed to predict the fire growth in retail shops. Correlation between the mechanical exhaust rate and plume entrainment rate for keeping the smoke layer interface at a certain height under a steady burning fire will be analyzed. A series of full-scale burning tests were carried out in a chamber with a vertical vent. In addition to validating the developed model, the results will also be compared with those predicted by another zone model CFAST. The effectiveness of mechanical exhaust in retail shop fires will be discussed. How different plume correlations can be applied will be investigated and compared. Some factors affecting the calculation will also be analyzed.

Original language	English
Pages (from-to)	477-490
Number of pages	14
Journal	International Journal of Thermal Sciences
Volume	44
Issue number	5
DOIs	https://doi.org/10.1016/j.ijthermalsci.2004.10.002
Publication status	Published - 1 May 2005

Keywords

Mechanical exhaust
Plume correlation
Smoke outflow
Steady height

ASJC Scopus subject areas

Condensed Matter Physics
General Engineering

More information

10.1016/j.ijthermalsci.2004.10.002

Cite this

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title = "Mechanical smoke exhaust for small retail shop fires",

abstract = "The operation of mechanical exhaust in a small retail shop fire will be studied with a two-layer model. Different equations on axisymmetric fire plume entrainment and spill plume will be considered. A zone model has been developed to predict the fire growth in retail shops. Correlation between the mechanical exhaust rate and plume entrainment rate for keeping the smoke layer interface at a certain height under a steady burning fire will be analyzed. A series of full-scale burning tests were carried out in a chamber with a vertical vent. In addition to validating the developed model, the results will also be compared with those predicted by another zone model CFAST. The effectiveness of mechanical exhaust in retail shop fires will be discussed. How different plume correlations can be applied will be investigated and compared. Some factors affecting the calculation will also be analyzed.",

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AU - Shi, C. L.

AU - Li, Y. Z.

AU - Huo, R.

AU - Yao, B.

AU - Chow, Wan Ki

AU - Fong, Nai Kong

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AB - The operation of mechanical exhaust in a small retail shop fire will be studied with a two-layer model. Different equations on axisymmetric fire plume entrainment and spill plume will be considered. A zone model has been developed to predict the fire growth in retail shops. Correlation between the mechanical exhaust rate and plume entrainment rate for keeping the smoke layer interface at a certain height under a steady burning fire will be analyzed. A series of full-scale burning tests were carried out in a chamber with a vertical vent. In addition to validating the developed model, the results will also be compared with those predicted by another zone model CFAST. The effectiveness of mechanical exhaust in retail shop fires will be discussed. How different plume correlations can be applied will be investigated and compared. Some factors affecting the calculation will also be analyzed.

KW - Mechanical exhaust

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KW - Smoke outflow

KW - Steady height

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DO - 10.1016/j.ijthermalsci.2004.10.002

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JO - International Journal of Thermal Sciences

JF - International Journal of Thermal Sciences

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Mechanical smoke exhaust for small retail shop fires

Abstract

Keywords

ASJC Scopus subject areas

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