Hot smoke tests for smoke propagation investigations in long rail tunnels

Sturm, Peter; Rodler, Johannes; Thaller, Thomas; Fruhwirt, Daniel; Fößleitner, Patrik

doi:10.1016/j.firesaf.2019.03.003

Cited by 3 publications

(1 citation statement)

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“…With the acceleration of urban modernization in China, utility tunnels are seeing constant increases in both pipeline type and pipeline density, accompanied by more and more fire accidents [3,4]. Since utility tunnels accommodate all kinds of cables essential for the normal operation of a city, in case of a fire, the vast amount of smoke produced by cable combustion will soon fill up the utility tunnel, posing significant difficulties to fire rescue operation and jeopardizing the normal operation of the city [5][6][7]. us, investigating the behavior of fire smoke in utility tunnels as well as smoke prevention and control measure is highly important for exhausting smoke from utility tunnel, realizing efficient firefighting and rescue operations and guaranteeing the normal operation of cities [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effects of Fire Compartmentation and Smoke Exhaust Measures on Smoke Spread Caused by Cable Fire in Utility Tunnel

Zhang

Jia³

et al. 2021

Advances in Civil Engineering

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Investigating the behavior of fire smoke in utility tunnel as well as smoke prevention and control measures are of vital significance for exhausting smoke from utility tunnel, realizing efficient firefighting and rescue, and guaranteeing the normal operation of cities. Taking utility tunnel as the research background, this paper builds a simulation calculation model for fire smoke prevention and control in the utility tunnel using PyroSim numerical simulation software and explores the rules of smoke spread under conditions such as building ceiling screen, changing fire compartmentation tightness, and adding smoke exhaust facilities. According to study results, before the tunnel was filled with smoke, ceiling screens lowered smoke spread rate, and smoke spread rate was inversely proportional to the ceiling screen height. When the fire door was opened, fire smoke spread to the adjacent fire compartment, and smoke spread rate was directly proportional to the fire door opening angle. Before the tunnel was filled up, mechanical smoke exhaust facilities significantly lowered the smoke spread rate by as much as 50%. When the entire tunnel was full of smoke, mechanical smoke exhaust facilities significantly reduced the smoke concentration in the utility tunnel; smoke layer temperature dropped by as much as 32°C, while visibility improved by as much as 66%. By studying smoke spread in utility tunnel, this paper aims to determine the optimal measures of preventing and controlling smoke spread in utility tunnel. This paper could also offer some reference for practical engineering applications in smoke prevention and control in utility tunnel.

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Section: Introductionmentioning

confidence: 99%

Effects of Fire Compartmentation and Smoke Exhaust Measures on Smoke Spread Caused by Cable Fire in Utility Tunnel

Zhang

Jia³

et al. 2021

Advances in Civil Engineering

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The characteristics of ventilated pool fires of Daegok-Sosa subway lines using Model-Scale tunnels and stations

Jang

Kim

Rho

et al. 2022

Tunnelling and Underground Space Technology

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Repeatability Assessment in Tunnel Fire Experiments

Morales Mere,

Madsen,

Johansson

et al. 2024

J. Phys.: Conf. Ser.

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A medium-scale experimental setup located in Revinge, Sweden, is used to generate new repeated experimental datasets focussed on measuring a set of key variables, including time-temperature curves and temperature profiles. A total of 6 repeated fire tests were conducted and are here used to exemplify typical issues associated with repeatability, uncertainty and variability in tunnel fire experiments. A key aspect considered in this work is the smoke stratification among repeated experiments and how fire behaviour can be affected by boundary conditions. This work is important to facilitate future efforts to collect high-quality tunnel fire data including a quantitative assessment of the experimental uncertainty, data that will be useful for validation of tunnel fire models.

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Hot smoke tests for smoke propagation investigations in long rail tunnels

Cited by 3 publications

References 0 publications

Effects of Fire Compartmentation and Smoke Exhaust Measures on Smoke Spread Caused by Cable Fire in Utility Tunnel

Effects of Fire Compartmentation and Smoke Exhaust Measures on Smoke Spread Caused by Cable Fire in Utility Tunnel

The characteristics of ventilated pool fires of Daegok-Sosa subway lines using Model-Scale tunnels and stations

Repeatability Assessment in Tunnel Fire Experiments

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