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Enclosure fire dynamics with a cross-laminated timber ceiling

McNamee, Robert LU ; Zehfuß, Jochen ; Bartlett, Alastair ; Heidari, Mohammad ; Robert, Fabienne and Bisby, Luke (2020) In Fire and Materials 45(7). p.847-857
Abstract
An experimental study of the influence of an exposed combustible ceiling on compartment fire dynamics has been performed. The fire dynamics in compartments with combustible cross-laminated timber ceilings vs non-combustible reinforced concrete ceilings in otherwise identical compartments with three different ventilation factors were investigated. The experimental results are compared against predictions from two theoretical models for compartment fire dynamics: (a) the parametric fire model given in EN 1991-1-2, and (b) a model developed at Technische Universität Braunschweig, which are the parametric fire models currently used in Germany. It is confirmed that the introduction of a combustible timber ceiling leads to higher temperatures... (More)
An experimental study of the influence of an exposed combustible ceiling on compartment fire dynamics has been performed. The fire dynamics in compartments with combustible cross-laminated timber ceilings vs non-combustible reinforced concrete ceilings in otherwise identical compartments with three different ventilation factors were investigated. The experimental results are compared against predictions from two theoretical models for compartment fire dynamics: (a) the parametric fire model given in EN 1991-1-2, and (b) a model developed at Technische Universität Braunschweig, which are the parametric fire models currently used in Germany. It is confirmed that the introduction of a combustible timber ceiling leads to higher temperatures within the enclosure, both under fuel-controlled and ventilation-controlled scenarios. It is also demonstrated that the theoretical models considered in this article require refinement in order to adequately represent all relevant scenarios when combustible ceilings are present. A refinement of the German model, by adding the fuel from the combustible ceiling to the occupancy fuel load, was shown to not adequately capture the response for the ventilation-controlled fires. (Less)
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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Fire and Materials
volume
45
issue
7
pages
847 - 857
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85090061342
ISSN
1099-1018
DOI
10.1002/fam.2904
language
English
LU publication?
no
id
93057caf-7f34-4773-8ceb-2e96920b26e1
date added to LUP
2024-05-03 10:03:32
date last changed
2024-05-06 12:56:03
@article{93057caf-7f34-4773-8ceb-2e96920b26e1,
  abstract     = {{An experimental study of the influence of an exposed combustible ceiling on compartment fire dynamics has been performed. The fire dynamics in compartments with combustible cross-laminated timber ceilings vs non-combustible reinforced concrete ceilings in otherwise identical compartments with three different ventilation factors were investigated. The experimental results are compared against predictions from two theoretical models for compartment fire dynamics: (a) the parametric fire model given in EN 1991-1-2, and (b) a model developed at Technische Universität Braunschweig, which are the parametric fire models currently used in Germany. It is confirmed that the introduction of a combustible timber ceiling leads to higher temperatures within the enclosure, both under fuel-controlled and ventilation-controlled scenarios. It is also demonstrated that the theoretical models considered in this article require refinement in order to adequately represent all relevant scenarios when combustible ceilings are present. A refinement of the German model, by adding the fuel from the combustible ceiling to the occupancy fuel load, was shown to not adequately capture the response for the ventilation-controlled fires.}},
  author       = {{McNamee, Robert and Zehfuß, Jochen and Bartlett, Alastair and Heidari, Mohammad and Robert, Fabienne and Bisby, Luke}},
  issn         = {{1099-1018}},
  language     = {{eng}},
  number       = {{7}},
  pages        = {{847--857}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Fire and Materials}},
  title        = {{Enclosure fire dynamics with a cross-laminated timber ceiling}},
  url          = {{http://dx.doi.org/10.1002/fam.2904}},
  doi          = {{10.1002/fam.2904}},
  volume       = {{45}},
  year         = {{2020}},
}