A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Smoke spreading analyses in a subway fire scale model
AbstractThis paper is an experimental study of smoke spreading in a subway station. A subscale model based on the Froude number similitude was elaborated. Smoke spreading was analyzed according to subway geometry (number of openings) and ventilation volumetric flow rate. In this context, evacuation way must remain smoke-free to ensure the safety of passengers in case of fire on the platform. As the vertical of hot air may initiate stack effect, which is to be avoided, appropriate ventilation conditions needed to be determined. With this in mind, three main parameters were considered: ventilation mode (push-pull or extraction mode), stairway number, and railway network. The efficiency of push-pull and all extraction modes were compared to a single extraction mode with a reduction of critical volumetric flow approximating 19 and 13% respectively. The influence of pressure loss in tunnel opposite to ventilation on the stack effect was also studied. The outlet temperatures of stairways and free smoke areas were our major concern, and the safety criterion pointed out.
Smoke spreading analyses in a subway fire scale model
AbstractThis paper is an experimental study of smoke spreading in a subway station. A subscale model based on the Froude number similitude was elaborated. Smoke spreading was analyzed according to subway geometry (number of openings) and ventilation volumetric flow rate. In this context, evacuation way must remain smoke-free to ensure the safety of passengers in case of fire on the platform. As the vertical of hot air may initiate stack effect, which is to be avoided, appropriate ventilation conditions needed to be determined. With this in mind, three main parameters were considered: ventilation mode (push-pull or extraction mode), stairway number, and railway network. The efficiency of push-pull and all extraction modes were compared to a single extraction mode with a reduction of critical volumetric flow approximating 19 and 13% respectively. The influence of pressure loss in tunnel opposite to ventilation on the stack effect was also studied. The outlet temperatures of stairways and free smoke areas were our major concern, and the safety criterion pointed out.
Smoke spreading analyses in a subway fire scale model
Giachetti, B. (author) / Couton, D. (author) / Plourde, F. (author)
Tunnelling and Underground Space Technology ; 70 ; 233-239
2017-08-05
7 pages
Article (Journal)
Electronic Resource
English
Fire , Ventilation , Subway station , Froude , Reduced scale
Smoke spreading analyses in a subway fire scale model
| British Library Online Contents | 2017
Smoke spreading analysis from an experimental subway scale model
| British Library Online Contents | 2016
Mobile Smoke Ventilation Equipments for Subway Fire Ground
| British Library Conference Proceedings | 2004
Analysis of the Smoke Flow in Subway Fire
| Trans Tech Publications | 2014
Analysis of Smoke Dynamic Field in Subway Station Fire
| British Library Conference Proceedings | 2006