Study of smoke backlayering during suppression in tunnels

被引：31

作者：

Ko, Yoon J. ^{[1
]}

Hadjisophocleous, George V. ^{[1
]}

机构：

[1] Carleton Univ, Ottawa, ON K1S 5B6, Canada

来源：

FIRE SAFETY JOURNAL | 2013年 / 58卷

关键词：

Tunnel fires; Smoke backlayering; WFFFS; Fire suppression; Ventilation systems; FIRES; FLOW; VELOCITY;

D O I：

10.1016/j.firesaf.2013.03.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：240 / 247

页数：8

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