Experimental Study on the Effects of Low Ambient Pressure Conditions at High Altitude on Fire Suppression with Water Mist

2010 ◽  
Vol 28 (5) ◽  
pp. 441-458 ◽  
Author(s):  
Xin Cai ◽  
Xi-Shi Wang ◽  
Tian-Shui Liang ◽  
Guang-Xuan Liao
2013 ◽  
Vol 790 ◽  
pp. 53-56
Author(s):  
Chen Jian ◽  
Xu Yan Ying ◽  
Wang Na

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.


2012 ◽  
Vol 30 (2) ◽  
pp. 138-157 ◽  
Author(s):  
Na Meng ◽  
Longhua Hu ◽  
Shuai Liu ◽  
Long Wu ◽  
Longfei Chen ◽  
...  

2012 ◽  
Vol 166-169 ◽  
pp. 2804-2809 ◽  
Author(s):  
Jian Chen

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.


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