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A New Methodology of Design Fires for Train Carriages Based on Exponential Curve Method
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).ORCID iD: 0000-0002-9340-6768
RISE, SP – Sveriges Tekniska Forskningsinstitut.ORCID iD: 0000-0001-7744-2390
2016 (English)In: Fire technology, ISSN 0015-2684, E-ISSN 1572-8099, Vol. 52, no 5, p. 1449-1464Article in journal (Refereed) Published
Abstract [en]

Design fires have great influences on the fire safety concepts and safety measures, and are the basis for any assessment and calculation in tunnel fire safety design. A new methodology of design fires for individual train carriages is proposed based on the exponential design fire curve method and state-of-the-art fire research. The three key parameters required for construction of a design fire are the maximum heat release rate, time to maximum heat release rate, and energy content. An overview of the full scale train carriage fire tests is given and the results show that the maximum heat release rate is in a range of 7 MW to 77 MW and the time to reach the maximum heat release rate varies from 7 min to 118 min. The method could be employed to one single train carriage or several carriages, and alternatively one carriage could be divided into several individual sections. To illustrate the use of the methodology, several engineering applications are presented, including design fires for a metro train carriage with a maximum heat release rate of 77 MW, a double-deck railway train carriage with a maximum heat release rate of 60 MW and a tram carriage with a maximum heat release rate of 28 MW. The main objective is to provide practicing engineers with a flexible and reliable methodology to make design fires for individual train carriages in performance-based tunnel fire safety design.

Place, publisher, year, edition, pages
2016. Vol. 52, no 5, p. 1449-1464
Keywords [en]
Design fire, Train carriage, Metro, Tram, Heat release rate, Engineering application
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-6810DOI: 10.1007/s10694-015-0464-3Local ID: 23604OAI: oai:DiVA.org:ri-6810DiVA, id: diva2:964650
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2019-06-10Bibliographically approved

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Ingason, HaukurLi, Ying Zhen

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