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Full-scale experimental and numerical studies on compartment fire under low ambient temperature
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-3112-0270
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0003-2181-2828
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0003-4791-2341
2012 (English)In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 51, p. 255-262Article in journal (Refereed) Published
Abstract [en]

A fire experiment with wood crib was conducted in a concrete building under low ambient temperature of −10 °C to explore fire development and temperature distribution. The concrete building consists of a two-storey compartment with the size of 9.0 m by 5.0 m by 4.8 m high and a four-storey stairwell with the size of 5.0 m by 2.4 m by 10.0 m high. The fuel mass loss rate and temperatures at different positions were measured. Two fire cases, with different assumed ambient temperatures of −10 °C and 20 °C respectively, were then simulated by using FDS software to investigate the effect of ambient temperature and compare with the experimental results. The numerical results show that the calculated heat release rate is in reasonably good agreement with the measured full-scale result before water suppression. The calculated temperatures in the hot combustion gas layer at different positions agree also very well with the measured values. However, the measured fresh air temperature at the floor level near the fire source is higher than the calculated value. This discrepancy may partly depend on measuring errors as analyzed in the paper.

Place, publisher, year, edition, pages
2012. Vol. 51, p. 255-262
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
URN: urn:nbn:se:ltu:diva-13672DOI: 10.1016/j.buildenv.2011.11.010ISI: 000301318200003Scopus ID: 2-s2.0-84055178480Local ID: cefa5ecc-0e75-4122-9c43-8b40bd62f55fOAI: oai:DiVA.org:ltu-13672DiVA, id: diva2:986625
Note
Validerad; 2012; 20111202 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-08-15Bibliographically approved

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Byström, AlexandraCheng, XudongWickström, UlfVeljkovic, Milan

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