Water Mist Flashover Suppression and Boundary Cooling System for Integration with DC-ARM Volume 1: Summary of Testing

Mawhinney, J. R.; DiNenno, P. J.; Williams, F.W.

doi:10.21236/ada369112

Cited by 3 publications

(2 citation statements)

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“…This led to the development of water mist systems for road tunnels being one of the most active research areas. Fire tests carried out in Switzerland [43] involved burning passenger cars arranged to simulate an accident involving three (03) vehicles in a tunnel. The activation of the water mist system was able to control the burning of the three (03) vehicles and keep the fire from spreading to the adjacent vehicle until the fire consumed all the fuels available within the three (03) controlled cars.…”

Section: Road and Rail Tunnelsmentioning

confidence: 99%

“…As fuel tanks were ruptured, the water mist was able to easily extinguish the burning liquid fuel and cool it as it spread across the roadways. Tunnel safety researchers claim that water mist also improves visibility within tunnels during fire scenarios and assists in safe evacuation [15,43]. The research is in furtherance of using water mist in road tunnels.…”

Section: Road and Rail Tunnelsmentioning

confidence: 99%

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Water Mist Fire Suppression Systems for Building and Industrial Applications: Issues and Challenges

Farrell

Hassan

Hossain

et al. 2023

Fire

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Interest in water mist fire suppression has increased within the fire protection industry due to its ability to control the spread and development of fire without using environmentally damaging agents. Water mist fire suppression has been used for many years in various applications such as machinery spaces, combustion turbine enclosures, and onboard passenger sea vessels. Now there is a demand to use this firefighting method to protect other fire risks such as cooking areas, commercial buildings, residential buildings, electrical equipment, road tunnels, bushfire (wildland fire) protection, and nuclear power generation facilities. To support this industry demand, this review covers the fundamentals of water mist, its suppression mechanisms, areas of application, existing research and development, and the codes and standards related to design. This comprehensive review provides a clear history of water mist suppression. It is able to identify the issues and challenges related to the technology to help pave the way for future research and development that will improve these systems to a level so that they are suitable for these new applications and meet the industry demand for nontoxic fire suppression systems.

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Section: Road and Rail Tunnelsmentioning

confidence: 99%

Section: Road and Rail Tunnelsmentioning

confidence: 99%

Water Mist Fire Suppression Systems for Building and Industrial Applications: Issues and Challenges

Farrell

Hassan

Hossain

et al. 2023

Fire

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CFD Investigation of Large Scale Pallet Stack Fires in Tunnels Protected by Water Mist Systems

Trelles¹,

Mawhinney²

2010

Journal of Fire Protection Engineering

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A series of full-scale fire suppression tests was conducted at the San Pedro de Anes test tunnel facility near Gı´jon, Asturias, Spain in February 2006. The fuel was wooden pallets or a mixed load of wood and high density polyethylene pallets. Fire protection was provided by water mist systems in different configurations. Because of facility restrictions, some scenarios of great interest, such as a free burn fire, could not be investigated. However, in order to complement the experimental results, a number of computational fluid dynamics simulations were conducted on a 140 m section of the tunnel facility. The Fire Dynamics Simulator, version 4, was used for the numerical investigation. An algorithm was developed to allow the fire to spread along the top of a series of pallet loads in such a way that the measured heat release rate was reproduced. Verification and validation studies confirmed that the model predicted the measured ventilation speeds and peak temperatures. The agreement between the simulations and the field measurements was very good prior to activation of the water mist. Back-layering was modeled well. After activation of the mist, the simulations predicted a large drop in gas temperatures, and retreat of the back-layer, but under-predicted the thermal cooling by the water mist downstream of the fire. With the suppression system, high temperatures and heat fluxes were limited to the immediate vicinity of the burning pallets. The model was then used to simulate a free burn fire in the tunnel. The simulation demonstrated the catastrophic conditions created by an unsuppressed fire in a tunnel when compared against the thermally managed conditions under suppressed conditions.

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The Application of High Pressure Water Mist as Part of a Holistic Fire Fighting System

Ratcliffe¹,

Atkins²

2011

The Damaged Ship

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Water Mist Flashover Suppression and Boundary Cooling System for Integration with DC-ARM Volume 1: Summary of Testing

Cited by 3 publications

References 0 publications

Water Mist Fire Suppression Systems for Building and Industrial Applications: Issues and Challenges

Water Mist Fire Suppression Systems for Building and Industrial Applications: Issues and Challenges

CFD Investigation of Large Scale Pallet Stack Fires in Tunnels Protected by Water Mist Systems

The Application of High Pressure Water Mist as Part of a Holistic Fire Fighting System

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