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Study of smoke backlayering during suppression in tunnels

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1016/j.firesaf.2013.03.001
AuthorSearch for: ORCID identifier: https://orcid.org/0000-0001-9644-5108; Search for:
FormatText, Article
Subjecttunnel fires; smoke backlayering; WFFFS; fire suppression; ventilation system
Abstract
Full-scale suppression tests and Computational Fluid Dynamics (CFD) simulations were carried out to investigate the effect of Water-based Fixed Fire Fighting Systems (WFFFS) on the effectiveness of longitudinal ventilation systems in resisting smoke backlayering in tunnels. Test results show that WFFFS enables longitudinal ventilation systems to resist smoke backlayering with a lower velocity than the critical velocity for the same size of tunnel fire. Based on data obtained from the test program and the simulation program, a design method is proposed to estimate the velocity required to resist smoke backlayering in tunnels when WFFFS is active.
Publication date
PublisherElsevier BV
In
  • Fire Safety Journal 58, no. C (May 2013): 240–247.
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

IdentifierS037971121300060X
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Record identifierc7c62ed7-dfc0-45a1-8b37-1a477fa16926
Record created2022-08-03
Record modified2022-08-04
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