Investigation Of Fire-Induced Smoke Movement In Tunnels And Stations: An Application To The Paris Metro
Year: 1991
Type: article
Abstract: The behaviour of fire-induced smoke layers in a tunnel and a particular station of the Paris Metro, in the presence of ventilating-air flow, is experimentally investigated using small scale models.For practical purposes, laser investigation techniques are utilized.The reverse layer formed near the ceiling of a tunnel, and flowing against the ventilation, is analyzed from the results of the small scale test as a function of the fire source power and ventilation current.A simple modelling procedure is applied which should permit full scale lengths of reverse layers to be deduced.Measurements of temperature di s t.r i bution, along the tunnel median plane and cross sections, reveal the stratified evolution of the smoke backflow.The experiments with a ventilated tunnelstation configuration show the essential characteristics of the smoke movement (entrainment, stratification, recirculation, etc ... ).The propagation of hot combustion products, indeed, is of practical importance for fire-fighting and people evacuation.
Source: Fire Safety Science
Authors: Jean- Vantelon, A. Guelzim, D. Quach, D. Son, D. Gabay, D. Dallest
Language: English
Subfield: Safety, Risk, Reliability and Quality
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1982273733