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Defining the fire decay and the cooling phase of post-flashover compartment fires [Elektronski vir]Lucherini, Andrea ; Torero, Jose L.The current research study discusses and characterises the fire decay and cooling phase of post-flashover compartment fires, as they are often mixed up despite their important heat transfer ... differences. The two pha- ses are defined according to the fire heat release rate time-history. The fire decay represents the phase in which the fire heat release rate decreases from the ventilation- or fuel-limited steady-state value of the fully-developed phase to fire extinguishment. This phase is highly influenced by the fuel characteristics, ranging from fast decays for hydrocarbon and liquid fuels to slow decays for charring cellulosic fuels (wood). Once the fuel is consumed, the compartment volume enters the cooling phase, where the cooling in the gas-phase and solid-phase happens with significantly different modes and characteristic times. The thermal boundary conditions at the structural elements are then defined according to physical characteristics and dynamics within the compartment. The research study also underlines how the existing performance-based methodologies lack explicit definitions of the decay and cooling phases and the corresponding thermal boundary conditions for the design of fire-safe struc- tural elements under realistic fire conditions.Source: Fire safety journal [Elektronski vir]. - ISSN 1873-7226 (Vol. 141, [article no.] 103965, Dec. 2023, 11 str.)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 166069763
Author
Lucherini, Andrea |
Torero, Jose L.
Topics
razpadanje ognja |
hlajenje |
izgorevanje |
naravna izpostavljenost ognju |
dinamika požara |
požari v oddelkih |
požarno inženirstvo |
učinkovitost |
požarna varnost |
fire decay |
cooling |
burnout |
natural fire exposure |
fire dynamics |
compartment fires |
structural fire engineering |
performance-based |
fire safety
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Author | Lucherini, Andrea ; Torero, Jose L. |
Title | Defining the fire decay and the cooling phase of post-flashover compartment fires [Elektronski vir] |
Publication date | 2023-09-12 |
COBISS.SI-ID | 166069763 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Fire-safe Sustainable Built Environment | FRISSBE | 952395 |
European Commission |
Fundamental advances for the fire safety of tall timber structures including the fire decay phase | FIReSafeTimber | 101064840 |
European Commission |
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Lucherini, Andrea | 56534 |
Torero, Jose L. | ![]() |
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