| Download | - View accepted manuscript: Performance investigation of emergency ventilation strategies in a new section of a road tunnel (PDF, 543 KiB)
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| Author | Search for: Kashef, A.1; Search for: Bénichou, N.1; Search for: Debs, A. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | Tunnels |
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| Abstract | The National Research Council of Canada (NRC) conducted a study to evaluate the effectiveness of the current emergency ventilation system (EVS) to control smoke and hot gases originating from fires in a new section of a road tunnel in Montréal, Canada. The project uses the Computational Fluid Dynamics (CFD) technique for simulating smoke movement behaviour. Data from full-scale tests were used to verify the CFD model. The study provided recommendations to improve the effectiveness of the EVS. The study findings indicated that the effectiveness of the EVS was significantly affected by large pressure losses in the ventilation fans plenum and by the obstruction of large concrete beams to airflow. To improve the effectiveness of the ventilation fans, the study recommended the introduction of a ducting system to control airflow losses and to better direct airflow in such a way as to avoid impacting on the beams. With the high ceiling in this section of the tunnel, the possibility of collecting and storing smoke and hot gases at high elevations was investigated by operating the EVS in exhaust mode. |
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| Publication date | 2006-06-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 45565
NRC-IRC-18736 |
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| NPARC number | 20378168 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 48f058c3-96c7-48cc-87f3-c7a05750da73 |
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| Record created | 2012-07-24 |
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| Record modified | 2020-04-22 |
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