Addition of a water mist on a small-scale liquid pool fire: Effect on radiant heat transfer at the surface

Richard, J.; Garo, Jean-Pierre; Souil, J.M.; Vantelon, Jean-Pierre; Lemonnier, Denis

doi:10.1016/s1540-7489(02)80050-5

Cited by 17 publications

(13 citation statements)

References 7 publications

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“…6b and d). This enhancement of combustion through expansion has been experimentally observed for pool fires [5,42,43]. As a consequence, after 20 s of spraying, the reaction and the burning rates are only reduced by 20%, whereas the average temperature is slightly affected (Fig.…”

Section: The Effect Of Reference Smr On Fire Mitigationsupporting

confidence: 73%

A numerical study of water mist mitigation of tunnel fires

Nmira

Consalvi

Kaiss

et al. 2009

Fire Safety Journal

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Section: The Effect Of Reference Smr On Fire Mitigationsupporting

confidence: 73%

A numerical study of water mist mitigation of tunnel fires

Nmira

Consalvi

Kaiss

et al. 2009

Fire Safety Journal

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“…However, Z f,eff then almost equals Z f , as D*/dx is 5.23. Therefore, in this study, Equation (16) does not completely predict a flame shape for small-scale pool fires. To determine the optimal grid resolution, flame heights were predicted using variously sized grid-cells and a 30 cm pool fire, as shown in Figure 6.…”

Section: The Significance Of Grid Dependencementioning

confidence: 70%

“…Theoretically, Z f,eff is less than Z f for a coarse grid, based on Equation (16). However, Z f,eff then almost equals Z f , as D*/dx is 5.23.…”

Section: The Significance Of Grid Dependencementioning

confidence: 94%

“…For a fire with dimensions of 20 cm in width, radiative heat transfer is the dominant mode of heat transfer [7][8][9][10]. Therefore, the analysis of radiative heat transfer in a fire is quite important [11][12][13][14][15][16]. Furthermore, the flame characteristics, including flame shape and radiative heat fluxes, are important issues in fire safety and require accurate numerical analysis.…”

Section: Introductionmentioning

confidence: 99%

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Investigations on the Characteristics of Radiative Heat Transfer in Liquid Pool Fires

et al. 2008

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This work numerically investigates the radiative flux and flame shape from heptane liquid pool fires with small to medium sized pool fires (14-38 cm), grid sizes, spectral bands and solid angles. Experimental results were originated for comparison. The results show that calculated flame shapes and radiative fluxes are in good agreement with the measurements for suitable grid resolution. Besides, the effect of the intermittency of a flame on thermal radiation was performed. Experimentally, a shield was used to shade the radiant power from a persistent flame, and the radiative flux was measured from an intermittent flame on 30 cm diameter pool fires. The results show that 36% of the radiative flux measured is emitted from the intermittent flame when the radiometer is located at the base of the pool fire. As the radiometer is moved upwards, the radiative fluxes measured from the intermittent flame increase gradually, even to 50%.

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“…Richard [17] explored the effect on radiant heat transfer at the surface of small-scale liquid pool fire and revealed that the combustion rate of n-Heptane increased under the water mist, and the flame's convection and thermal feedback to the fuel surface were strengthened, which meant that water mist and vapor could not effectively isolate the feedback of the fuel surface and this failed to inhibit the vaporization of the fuel in the surface. In this sense, the dilution and replacement of oxygen and gas-phase cooling played important roles in extinguishing pool fires.…”

Section: Extinguishing Mechanism Under Longitudinal Ventilationmentioning

confidence: 99%

Experimental Study on Suppression of n-Heptane Pool Fire with Water Mist under Longitudinal Ventilation in Long and Narrow Spaces

Zhang

Guo

et al. 2013

Procedia Engineering

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This paper studies suppression of n-Heptane pool fire with water mist under different longitudinal ventilation velocities in a long and narrow space. Through the suppressing experiments with two different spraying positions and seven ventilation speeds, it is found that the extinguishment of fires has a close relationship with the fuel temperature. Moreover, the fuel temperature, when the fire is extinguished by spraying at different positions, is almost the same within the measurement ranges, and it tends to decrease as the wind speed rises. Mechanism studies show that the coupling effect of dilution and replacement of oxygen and fuel surface cooling is the main mechanism in n-Heptane fire extinguishment of water mist under longitudinal ventilation. In addition, the ability to efficiently cool the fuel plays a determinant role in the n-Heptane pool fire suppression.

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Addition of a water mist on a small-scale liquid pool fire: Effect on radiant heat transfer at the surface

Cited by 17 publications

References 7 publications

A numerical study of water mist mitigation of tunnel fires

A numerical study of water mist mitigation of tunnel fires

Investigations on the Characteristics of Radiative Heat Transfer in Liquid Pool Fires

Experimental Study on Suppression of n-Heptane Pool Fire with Water Mist under Longitudinal Ventilation in Long and Narrow Spaces

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