scholarly journals Flame Propagation Characteristics of Deposited Coal Dust Explosion Driven by Airflow Carrying Coal Dust

2021 ◽  
Vol 54 (12) ◽  
pp. 631-637
Author(s):  
Tianqi Liu ◽  
Zhixin Cai ◽  
Ruicheng Sun ◽  
Ning Wang ◽  
Ruiheng Jia ◽  
...  
Keyword(s):  
Flame Propagation ◽  
Coal Dust ◽  
Dust Explosion ◽  
Propagation Characteristics

Suppression of methane/coal dust deflagration by Al(OH)3 based on flame propagation characteristics and thermal decomposition

Fuel ◽  
2021 ◽  
pp. 122530
Author(s):  
Xianfeng Chen ◽  
Xinzhao Hou ◽  
Qi Zhao ◽  
Qian Li ◽  
Yi Li ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Flame Propagation ◽  
Coal Dust ◽  
Propagation Characteristics

Experimental analysis on post-explosion residues for evaluating coal dust explosion severity and flame propagation behaviors

Fuel ◽  
2018 ◽  
Vol 215 ◽  
pp. 417-428 ◽  
Author(s):  
Qingzhao Li ◽  
Chuangchuang Yuan ◽  
Qinglin Tao ◽  
Yuannan Zheng ◽  
Yang Zhao
Keyword(s):  
Flame Propagation ◽  
Experimental Analysis ◽  
Coal Dust ◽  
Dust Explosion

scholarly journals Study on propagation characteristics of the secondary explosion of coal dust

2019 ◽  
Vol 15 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Baichao Song ◽  
Yucheng Li
Keyword(s):  
Coal Dust ◽  
Flame Temperature ◽  
Source Area ◽  
Dust Explosion ◽  
Airflow Rate ◽  
Pipe Network ◽  
Propagation Characteristics ◽  
Renewable Energy Resources ◽  
Air Velocity ◽  
Co Concentration

Abstract In the era when renewable energy resources are advocated, traditional fuels still account for a dominant proportion. During coal exploitation, coal dust explosion has been one of the most common and serious disasters. Nevertheless, the generated dust can suspend in the air, further leading to a secondary explosion. However, there are limited studies focusing on the propagation characteristics of secondary explosion induced by coal dust. Therefore, this paper aims to detect coal dust explosion in a pipe network and investigate the secondary explosion caused by the first explosion. In specific, this paper numerically analyzed the propagation characteristics of first and secondary explosion of coal dust in aspects of flame temperature, airflow rate and CO mass concentration. The results indicate that the maximum flame temperature of the secondary explosion of coal dust could reach up to 4500 K, which was more intense than the first explosion. After the secondary explosion, the air velocity witnessed a significant increase, compared with the first explosion, but the air velocity at the linear section of the pipe network witnessed the highest because of the air supplement at two sides. Different from the highest CO concentration at the ignition area in the first explosion, the CO concentration in the secondary explosion source area decreased rapidly and the maximum CO concentration appeared in the flame front. Moreover, because of enough oxygen supplement, the explosion reaction was much more sufficient, so that the maximum CO concentration was less than that in the first explosion.

PROPAGATION CHARACTERISTICS AND ENVIRONMENTAL IMPACT OF COAL DUST EXPLOSION

2019 ◽  
Vol 18 (9) ◽  
pp. 2055-2061
Author(s):  
Yucheng Li ◽  
Baichao Song
Keyword(s):  
Environmental Impact ◽  
Coal Dust ◽  
Dust Explosion ◽  
Propagation Characteristics

Preparation and performance of novel APP/NaY–Fe suppressant for coal dust explosion

2021 ◽  
Vol 69 ◽  
pp. 104374
Author(s):  
Qingxi Wei ◽  
Yansong Zhang ◽  
Kun Chen ◽  
Bo Liu ◽  
Xiangbao Meng ◽  
...  
Keyword(s):  
Coal Dust ◽  
Dust Explosion ◽  
And Performance

scholarly journals Evaluation of the Risk Factors on Coal Dust Explosion in Warehouse

2016 ◽  
Vol 77 ◽  
pp. 06014
Author(s):  
Latana Chanthaphasouk ◽  
Kreangkrai Maneeintr ◽  
Pinyo Meechumna ◽  
Suteera Luengwattanapong ◽  
Chantamanee Poonjarernsilp
Keyword(s):  
Risk Factors ◽  
Coal Dust ◽  
Dust Explosion

Experimental and numerical study on flame propagation behaviors in coal dust explosions

2014 ◽  
Vol 266 ◽  
pp. 456-462 ◽  
Author(s):  
Weiguo Cao ◽  
Wei Gao ◽  
Yuhuai Peng ◽  
Jiyuan Liang ◽  
Feng Pan ◽  
...  
Keyword(s):  
Flame Propagation ◽  
Numerical Study ◽  
Coal Dust ◽  
Dust Explosions

Coal dust flames: A review and development of a model for flame propagation

1979 ◽  
Vol 5 (1) ◽  
pp. 31-71 ◽  
Author(s):  
John L. Krazinski ◽  
Richard O. Buckius ◽  
Herman Krier
Keyword(s):  
Flame Propagation ◽  
Coal Dust
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