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A Study on Ventilation Effects on Smoke Behavior in Rescue Station for Tunnel Fires  

Jang, Won-Cheol (중앙대학교, 기계공학과)
Kim, Dong-Woon (중앙대학교, 기계공학과)
Lee, Seong-Hyuk (중앙대학교, 기계공학과)
Ryou, Hong-Sun (중앙대학교, 기계공학과)
Publication Information
Journal of the Korean Society for Railway / v.11, no.3, 2008 , pp. 294-299 More about this Journal
Abstract
The present study investigates the ventilation effects on smoke spreading with the rescue stations. Experiments for tunnel fires were carried out for n-heptane pool em at different fire locations, and the heat release rates (HRR) were obtained by addition, using the commercial code (FLUENT), the present article presents numerical results for smoke behavior in railway tunnels with rescue station, and it uses the MVHS (Modified Volumetric Heat Source) model for estimation of combustion products resulting from the fire source determined from the HRR measurement. As a result, it is found that smoke propagation is prevented successfully by the fire doors located inside the cross-passages and especially, the smoke behavior in the accident tunnel can be controlled through the ventilation system because of substantial change in smoke flow direction in the cross-passages.
Keywords
Modified VHS Model; Rescue Station; Tunnel Fire; Smoke Propagation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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