Study of smoke backlayering during suppression in tunnels
| Autor: | George Hadjisophocleous, Yoon J. Ko |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Smoke
Engineering tunnel fires WFFFS Suppression tests smoke backlayering business.industry Lower velocity General Physics and Astronomy Firefighting General Chemistry Structural engineering Computational fluid dynamics Critical ionization velocity ventilation system Test program Fire protection General Materials Science fire suppression Safety Risk Reliability and Quality business |
| DOI: | 10.1016/j.firesaf.2013.03.001 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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