Experimental study of radiant-heat blocking function of fine water mist suppressing small-scale pool fire

2004 ◽  
Author(s):  
Qiang Xu
Keyword(s):  
Experimental Study ◽  
Radiant Heat ◽  
Water Mist ◽  
Pool Fire ◽  
Small Scale

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

2002 ◽  
Vol 29 (1) ◽  
pp. 377-384 ◽  
Author(s):  
J. Richard ◽  
J.P. Garo ◽  
J.M. Souil ◽  
J.P. Vantelon ◽  
D. Lemonnier
Keyword(s):  
Heat Transfer ◽  
Radiant Heat ◽  
Water Mist ◽  
Liquid Pool ◽  
Pool Fire ◽  
Small Scale ◽  
Radiant Heat Transfer ◽  
Fire Effect

Effect on Radiant Heat Transfer at the Surface of a Pool Fire Interacting With a Water Mist

2009 ◽  
Vol 132 (2) ◽  
Author(s):  
J. P. Garo ◽  
J. P. Vantelon ◽  
D. Lemonnier
Keyword(s):  
Magnitude Estimate ◽  
Radiant Heat ◽  
Water Mist ◽  
Flame Stabilization ◽  
Pool Fire ◽  
Heat Extraction ◽  
Small Scale ◽  
Attractive Alternative ◽  
Radiant Heat Transfer ◽  
Order Of Magnitude

It is well established that the use of water mist can be an attractive alternative to gaseous suppression agents to extinguish fires for specific scenarios. Among the main mechanisms, which act together to extinguish fires when using a water mist: heat extraction, oxygen displacement, and radiant heat attenuation, the last one has received the less attention, especially regarding the energy balance at the fuel surface and, therefore, the rate of generation of flammable vapors. The objective of this work is to analyze, on the one hand, the perturbing influence of a mist addition as an opposed flow to a small-scale liquid (heptane) pool fire structure, especially at its base, the more interesting zone regarding the mechanisms of flame stabilization and extinction and, on the other hand, the effect on the surface radiant heat feedback. Experiments conducted give an order of magnitude estimate in essential agreement with a radiation computation, based on the mappings, previously obtained, of the two major parameters: temperature and extinction coefficient, that determine the thermal radiation of the flame. The important information is the confirmation that radiation attenuation cannot be identified as a predominant mechanism of extinguishment.

EXPERIMENTAL STUDY ON EXTINGUISHING POOL FIRE SHELTERED BY BARRIER WITH WATER MIST

2004 ◽  
Vol 12 (3) ◽  
pp. 209-222
Author(s):  
LIU JIANGHONG ◽  
FANG YUDONG ◽  
LIAO GUANGXUAN ◽  
LIN LIN
Keyword(s):  
Experimental Study ◽  
Water Mist ◽  
Pool Fire

Experimental Study on the Effectiveness of the Extinction of a Pool Fire with Water Mist

2002 ◽  
Vol 20 (4) ◽  
pp. 279-295 ◽  
Author(s):  
Wang Xishi ◽  
Liao Guangxuan ◽  
Qin Jun ◽  
Fan Weicheng
Keyword(s):  
Experimental Study ◽  
Water Mist ◽  
Pool Fire

Experimental Study on Radiant Heat of Market Shelf Fire Decayed by High-Pressure Water Mist System

2012 ◽  
Vol 518-523 ◽  
pp. 3699-3702 ◽  
Author(s):  
Jian Ying Wang ◽  
Xi Lin Dong
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Decay Rate ◽  
Radiant Heat ◽  
Water Mist ◽  
Radiation Heat ◽  
Pressure Water ◽  
Experimental Combustion

Experimental study on radiant heat of market shelf fire depressed by high-pressure water mist system was carried out. The experiment researched on typical burning parts and combustions of places like market, and chosen experimental combustion components. The results show that the concentrate spray of high-pressure water mist system can decay the radiant heat of fire shelf effectively. The higher the spray pressure of the system, the faster the decay rate of radiation heat.

Experimental study of small scale n-heptane pool fire with water bath in an altitude chamber

2015 ◽  
Vol 90 ◽  
pp. 1153-1159 ◽  
Author(s):  
Jiajie Yao ◽  
Jiahao Liu ◽  
Xiao Chen ◽  
Haihang Li ◽  
Yi Niu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Pool Fire ◽  
Water Bath ◽  
Small Scale

Numerical Simulation and Research of Pool Fire Suppressed by Water Mist in the Engineroom of a Ship

2010 ◽  
Vol 29-32 ◽  
pp. 651-657 ◽  
Author(s):  
Jian He Zhao ◽  
Ye Gao ◽  
Hong Mei Wu
Keyword(s):  
Numerical Simulation ◽  
Oxygen Content ◽  
Large Scale ◽  
Cone Angle ◽  
Water Mist ◽  
Fire Fighting ◽  
Pool Fire ◽  
Cooling Effect ◽  
Small Scale ◽  
Spray Cone

Ship engineroom fire is one of the most common and serious disasters in shipwrecks. It has become a hotspot of research to use water mist system to extinguish engineroom fire efficiently in the ship fire fighting field. In this paper, using Fluent to simulate water mist suppressing engineroom fire on the conditions of different fire scales, droplet diameters, spray cone angles and spray pressures. Research indicates that: large scale fires are more easily suppressed than small scale fires by water mist in the enclosure engineroom; the droplets of water mist should be neither too big nor too small, or else it would go against fire fighting. It is pointed out that the droplets should be in the range of 200 μm to 400 μm; the smaller cone angle nozzle can guarantee a high flame cooling effect; the increase of spray pressure can enhance the flame cooling effect, but probably of only marginal help in reducing the oxygen content.

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