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Flame evolution and radiation hazards of rectangular fires between two parallel walls
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Tang, Fei, Hu, Peng and Wen, Jennifer X. (2023) Flame evolution and radiation hazards of rectangular fires between two parallel walls. Proceedings of the Combustion Institute, 93 (3). pp. 3683-3693. doi:10.1016/j.proci.2022.09.035 ISSN 1540-7489.
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Official URL: https://doi.org/10.1016/j.proci.2022.09.035
Abstract
The manuscript investigated experimentally the influence of two parallel walls on the flame geometric parameters and radiative heat flux distributions along the wall from fires on rectangular burners. Four sets of burners with equal area and different aspect ratios were used. The burner aspect ratios, separation distance between two parallel walls and the fire heat release rates were systematically varied in the tests. Measurements were conducted for the flame height evolution and radiation hazards. The results were analysed to build the change trends of the vertical flame height and radiant heat flux with the change of the separation distance between two parallel walls. A normalized flame height equation incorporating the separation distance was proposed. The results also revealed that the radiant heat fluxes along a vertical target do not change monotonously. Comparison between the measurements and the radiant heat fluxes calculated by some published empirical models revealed relatively large discrepancies. A view factor based formula was hence proposed by assuming the flame shape as a triangular prism based on the probability flame contours for relatively larger burner aspect ratios (n ≥ 3) and found to correlate well with the measurements.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | T Technology > TH Building construction | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Fire protection engineering, Flame spread | |||||||||||||||
Journal or Publication Title: | Proceedings of the Combustion Institute | |||||||||||||||
Publisher: | Elsevier Inc. | |||||||||||||||
ISSN: | 1540-7489 | |||||||||||||||
Official Date: | 7 June 2023 | |||||||||||||||
Dates: |
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Volume: | 93 | |||||||||||||||
Number: | 3 | |||||||||||||||
Page Range: | pp. 3683-3693 | |||||||||||||||
DOI: | 10.1016/j.proci.2022.09.035 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Re-use Statement: | ** Article version: AM ** From Elsevier via Jisc Publications Router ** History: accepted 05-09-2022; issued 29-10-2022. ** Licence for AM version of this article starting on 14-10-2022: http://creativecommons.org/licenses/by/4.0/ | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Date of first compliant deposit: | 6 December 2022 | |||||||||||||||
Date of first compliant Open Access: | 6 December 2022 | |||||||||||||||
RIOXX Funder/Project Grant: |
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