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A platform for research: civil engineering, architecture and urbanism
Numerical Studies on the Smoke Control Parameters of Water Mist Screens with Transverse Ventilation System in Tunnel Fires
Emergency ventilation systems are commonly used for smoke control during tunnel fires. Numerical results show that the fire and smoke would be confined effectively by the water mist screen and transverse ventilation system (WMSTV system) system, and the environment inside the confined zone would be suitable for occupants’ evacuation and fire fighting. In this paper, the smoke control parameters of WMSTV system are proposed. The visibility distributions and smoke extraction efficiency are analyzed by FDS simulation. The results show that the minimum spacing distance between smoke vents should not be less than 40 m, while the maximum spacing distance should not exceed 60 m for 30 MW of fire. The spacing distance between the screen and vent is suggested to fall in 30–45 m. Two vents are recommended in the control zone with the screen spacing of 120 and 150 m. Four vents are recommended in the control zone with the screen spacing of 180 m.
Numerical Studies on the Smoke Control Parameters of Water Mist Screens with Transverse Ventilation System in Tunnel Fires
Emergency ventilation systems are commonly used for smoke control during tunnel fires. Numerical results show that the fire and smoke would be confined effectively by the water mist screen and transverse ventilation system (WMSTV system) system, and the environment inside the confined zone would be suitable for occupants’ evacuation and fire fighting. In this paper, the smoke control parameters of WMSTV system are proposed. The visibility distributions and smoke extraction efficiency are analyzed by FDS simulation. The results show that the minimum spacing distance between smoke vents should not be less than 40 m, while the maximum spacing distance should not exceed 60 m for 30 MW of fire. The spacing distance between the screen and vent is suggested to fall in 30–45 m. Two vents are recommended in the control zone with the screen spacing of 120 and 150 m. Four vents are recommended in the control zone with the screen spacing of 180 m.
Numerical Studies on the Smoke Control Parameters of Water Mist Screens with Transverse Ventilation System in Tunnel Fires
Wu, Guan-Yuan (editor) / Tsai, Kuang-Chung (editor) / Chow, W. K. (editor) / Liang, Qiang (author) / Xu, Hui (author) / Huang, Youbo (author) / Li, Yanfeng (author)
Asia-Oceania Symposium on Fire Science and Technology ; 2018 ; Taipei, Taiwan
The Proceedings of 11th Asia-Oceania Symposium on Fire Science and Technology ; Chapter: 76 ; 1061-1074
2020-01-01
14 pages
Article/Chapter (Book)
Electronic Resource
English
Smoke control , Water mist screen transverse ventilation , Tunnel fire , Visibility , Smoke extraction Engineering , Fire Science, Hazard Control, Building Safety , Quality Control, Reliability, Safety and Risk , Engineering Thermodynamics, Heat and Mass Transfer , Building Materials , Renewable and Green Energy
| British Library Online Contents | 2017
| British Library Online Contents | 2017