The Experimental Study on Extinguishing Cooking Oil Fires by Water Mist

2012 ◽  
Vol 166-169 ◽  
pp. 2804-2809 ◽  
Author(s):  
Jian Chen
Keyword(s):  
Experimental Study ◽  
Fire Suppression ◽  
Engineering Application ◽  
Water Mist ◽  
Flow Coefficient ◽  
Spray Distance ◽  
Working Pressure ◽  
Fire Extinguishment ◽  
Cooking Oil ◽  
Practical Engineering

Abstract. The effects of flow coefficients, working pressures and different spray distances on extinguishing cooking oil fires by water mist were studied by experiment. The results show that the fire suppression effectiveness is increased with the increase of flow coefficient and working pressure, spray distance also affects the fire extinguishment efficiency of water mist. Reasonable conditions and designing parameters for practical engineering application of water mist are suggested.

The Experimental Study on Extinguishing Aircraft Cabin Fire by Water Mist

2013 ◽  
Vol 790 ◽  
pp. 697-700
Author(s):  
Chen Jian ◽  
Xu Yan Ying ◽  
Tan Zhi Jie
Keyword(s):  
Experimental Study ◽  
Fire Suppression ◽  
Water Mist ◽  
Flow Coefficient ◽  
Working Pressure ◽  
Aircraft Cabin ◽  
Better Than

The effect of flow coefficients, working pressures, nozzle layout and aircraft angle on extinguishing aircraft cabin fire by water mist were studied by experiment. The results show that the fire suppression effectiveness is increased with the increase of flow coefficient and working pressure; the diamond-shaped layout in sprinkler is better than square layout,and the aircraft angle of 30° is better than of 10°or 20°.

The Experimental Study on the Fire Suppression Effectiveness of Water Mist with the FeCl2 Additives

2013 ◽  
Vol 790 ◽  
pp. 53-56
Author(s):  
Chen Jian ◽  
Xu Yan Ying ◽  
Wang Na
Keyword(s):  
Experimental Study ◽  
Fire Suppression ◽  
Water Mist ◽  
Experimental Results ◽  
Additive Concentration ◽  
Experimental Conditions ◽  
Fire Source ◽  
Fire Extinguishing ◽  
Nozzle Position

This paper presents an experimental study of fire suppression effectiveness with water mist containing FeCl2 additives.The investigation focuses on suppression effectiveness under various FeCl2 additives concentrations,working pressures and nozzle different height above the fire source . The experimental results show that: there is a significant impact on fire suppression effectiveness when adding FeCl2 to water mist. There is an optimum additive concentration of extinguishing fire, corresponding to the shortest extinguishing time, the least amount of water, the highest efficiency of extinguishing fire. The nozzle working pressures and nozzle position have effect on the performance of the water mist extinguishing: the greater the pressure is, the shorter water mist fire extinguishing time is. Under the same experimental conditions, the closer the water mist nozzles are to the oil pan, the shorter extinguishing time is.

Experimental Study the Affection of the Dust Emission on Sand Stockpile by the Height of Windbreak Wall and Wind Speed

2014 ◽  
Vol 989-994 ◽  
pp. 823-826
Author(s):  
Ze Qin Liu ◽  
Li Ying Ma ◽  
Xin Yu Zhao
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Wind Speed ◽  
Experimental Testing ◽  
Dust Emission ◽  
Engineering Application ◽  
Local Wind ◽  
Practical Engineering ◽  
Working Principle ◽  
Natural Wind

Based on the perspective of saving investment and reducing dust emission, the method of experimental study and the working principle of windbreak wall were adopted in this paper to explore the affection of the dust emission on sand stockpile by the height of windbreak wall and natural wind speed. According to the experimental testing, the data processing and analysis by the origin software, the studied results indicated that, the dust emission of the same particle size of powder (sand) increased with increasing the wind speed, the dust emission of the same particle size and the same wind speed of powder reduced with increasing the height of the windbreak wall., When the height of windbreak wall is 5/6 times of the height of the stockpile for a certain height of the bulk stockpile, the dual purposes of the minimum dust emission of bulk stockpile and saving investment could be gained. In the practical engineering application, the height of the windbreak wall should be chosen according to the actual situation (the density of the stockpile, particle size as well as the local wind speed).

Inhibition Effect of Thermally-Induced Fire in 21,700 Lithium-Ion Battery With Low-Pressure Twin-Fluid Water Mist

2021 ◽  
Vol 18 (2) ◽  
Author(s):  
Jun Guo ◽  
Haibin Wang ◽  
Yuanhua He
Keyword(s):  
Lithium Ion Battery ◽  
Fire Suppression ◽  
Fire Hazard ◽  
Flame Temperature ◽  
Lithium Ion ◽  
Low Pressure ◽  
Water Mist ◽  
Inhibitory Effects ◽  
Working Pressure ◽  
Thermally Induced

Abstract The fire hazard of lithium-ion batteries (LIBs) poses a serious threat to their transportation and use. The purpose of this study is to investigate the efficiency of low-pressure twin-fluid water mist (TFWM) on suppressing lithium-ion battery fires. Experiments were executed to research the effect of working pressures and release stages on extinguishing the fire. Aqueous vermiculite dispersion (AVD), a commercial agent that was specifically designed to extinguish battery fires, was chosen to compare with the fire suppression performance of TFWM under the same conditions. The results indicate that the type 21,700 LIB fires could be controlled by applying the water mist within 10 s. The cooling ability at various working pressures (0.4, 0.8, 1.0, and 1.2 MPa) demonstrated an increase in inhibitory effects as the working pressure increased, and the optimal pressure was 1.2 MPa. The results further show that the extinguishing ability of the TFWM was better than the AVD agent. When the water mist was applied at the optimal working pressure, the surface temperature, flame temperature and concentration of CO reduced more significantly, compared with the AVD agent. Therefore, the TFWM shows considerable merit as a candidate to fight LIB fires.

Full-scale experimental study on fire suppression performance of a designed water mist system for rescue station of long railway tunnel

2012 ◽  
Vol 30 (2) ◽  
pp. 138-157 ◽  
Author(s):  
Na Meng ◽  
Longhua Hu ◽  
Shuai Liu ◽  
Long Wu ◽  
Longfei Chen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fire Suppression ◽  
Water Mist ◽  
Full Scale ◽  
Railway Tunnel

Experimental Study on Flexural Behavior of Different Damages Prestressed Concrete Hollow Slabs Strengthened with CFRP

2013 ◽  
Vol 351-352 ◽  
pp. 592-595
Author(s):  
Juan Han ◽  
Yin Liang
Keyword(s):  
Experimental Study ◽  
Experimental Method ◽  
Prestressed Concrete ◽  
Engineering Application ◽  
Flexural Behavior ◽  
Experimental Basis ◽  
Concentrated Force ◽  
Disaster Area ◽  
Practical Engineering ◽  
Symmetrical Load

The purpose of this paper is to focus on studying its flexural behavior after different damages prestressed concrete hollow slab is strengthened with CFRP.By the experimental method, twelve residential prestressed concrete hollow slabs are tested under concentrated force at the two points of the symmetrical load in order to analyze both flexural behavior and effects factored by different bonding modes.The conclusion can be drawn that the flexural behavior of prestressed concrete hollow slabs strengthened with CFRP is well-tried.It provides design suggestions and reference for prestressed concrete hollow slabs strengthened with CFRP, and also provides an experimental basis for the repairing and reinforcing practical engineering application in Wenchuan disaster area.

scholarly journals Extinguishment of Cooking Oil Fires by Water Mist Fire Suppression Systems

2004 ◽  
Vol 40 (4) ◽  
pp. 309-333 ◽  
Author(s):  
Zhigang Liu ◽  
Andrew K. Kim ◽  
Don Carpenter ◽  
J. M. Kanabus-Kaminska ◽  
Ping-Li Yen
Keyword(s):  
Fire Suppression ◽  
Water Mist ◽  
Cooking Oil ◽  
Suppression Systems
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