Document Detail


Diesel oil pool fire characteristic under natural ventilation conditions in tunnels with roof openings.
MedLine Citation:
PMID:  19117675     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In order to research the fire characteristic under natural ventilation conditions in tunnels with roof openings, full-scale experiment of tunnel fire is designed and conducted. All the experimental data presented in this paper can be further applied for validation of numerical simulation models and reduced-scale experimental results. The physical model of tunnel with roof openings and the mathematical model of tunnel fire are presented in this paper. The tunnel fire under the same conditions as experiment is simulated using CFD software. From the results, it can be seen that most smoke is discharged directly off the tunnel through roof openings, so roof openings are favorable for exhausting smoke. But along with the decrease of smoke temperatures, some smoke may backflow and mix with the smoke-free layer below, which leads to fall in visibility and is unfavorable for personnel evacuation. So it is necessary to research more efficient ways for improving the smoke removal efficiency, such as early fire detection systems, adequate warning signs and setting tunnel cap.
Authors:
Yanfu Wang; Juncheng Jiang; Dezhi Zhu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-11-27
Journal Detail:
Title:  Journal of hazardous materials     Volume:  166     ISSN:  1873-3336     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-05-04     Completed Date:  2009-08-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  469-77     Citation Subset:  IM    
Affiliation:
Nanjing University of Technology, Jiangsu Key Laboratory of Urban and Industrial Safety, Nanjing 210009, China.
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MeSH Terms
Descriptor/Qualifier:
Air Movements
Computer Simulation
Confined Spaces*
Fires*
Gasoline*
Models, Theoretical
Safety Management
Smoke
Software
Ventilation*
Chemical
Reg. No./Substance:
0/Gasoline; 0/Smoke

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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