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The Influence of Tunnel Cross Section on Temperatures and Fire Development
SP Brandteknik, Sweden. (MERO)ORCID iD: 0000-0001-6758-6067
SP Brandteknik, Sweden.
2008 (English)Conference paper, Published paper (Other academic)
Abstract [en]

During a fire in a tunnel, the temperature is a crucial parameter for the occupants of the tunnel, for the ability of the rescue service to approach the fire, and for the tunnel structure. Therefore, it is of importance to be able to derive information on temperature development and the maximum temperature for different fire scenarios and tunnels with different heights and widths. Fire tests in a model-scale tunnel have been performed to study the effect of the width and height of a tunnel on the gas temperature inside a tunnel during a fire. The model-scale tunnel was 10 m long. The widths used were 0.3 m, 0.45 m, and 0.6 m and the heights 0.25 m and 0.4 m.  Fire tests with heptane and wood cribs, respectively, were performed. There was an effect on the gas temperature of the tunnel dimension, generally decreasing temperature with increasing dimensions, even if the effect varied at different positions in the tunnel and the effect in some positions was relatively small. Also, the effect in the vicinity of the fire was opposite to the effect further downstream of the fire.

Place, publisher, year, edition, pages
2008. p. 149-161
National Category
Other Engineering and Technologies
Research subject
Energy- and Environmental Engineering; Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-22787OAI: oai:DiVA.org:mdh-22787DiVA, id: diva2:664237
Conference
3rd International Symposium on Safety and Security in Tunnels (ISTSS 2008, Stockholm, Sweden, 12-14 March 2008
Available from: 2013-11-14 Created: 2013-11-14 Last updated: 2016-01-11Bibliographically approved

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Lönnermark, Anders

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