A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental and numerical study on flame propagation behaviors in coal dust explosions
To reveal the flame propagation behaviors during coal dust explosions, a kind of coal dust cloud was studied through experiment and numerical simulation in semi-enclosed vertical combustion tubes with different lengths. A high speed video camera and a thermal infrared imaging device were used to record the flame propagation process. The result indicated that the supreme flame propagation velocity and the highest flame temperature both rose gradually with the tube length increasing. Meanwhile, FLUENT was applied to numerical simulation of flame propagation behaviors during the coal dust explosions. The simulation result showed the flame combustion and the temperature varying process was consistent with the experimental result. It also revealed the distribution of flow velocity in the flow field during the combustion process, which indicated that flow velocity higher than flame propagation velocity was an important reason for dust re-entrainment and consistent explosion.
Experimental and numerical study on flame propagation behaviors in coal dust explosions
To reveal the flame propagation behaviors during coal dust explosions, a kind of coal dust cloud was studied through experiment and numerical simulation in semi-enclosed vertical combustion tubes with different lengths. A high speed video camera and a thermal infrared imaging device were used to record the flame propagation process. The result indicated that the supreme flame propagation velocity and the highest flame temperature both rose gradually with the tube length increasing. Meanwhile, FLUENT was applied to numerical simulation of flame propagation behaviors during the coal dust explosions. The simulation result showed the flame combustion and the temperature varying process was consistent with the experimental result. It also revealed the distribution of flow velocity in the flow field during the combustion process, which indicated that flow velocity higher than flame propagation velocity was an important reason for dust re-entrainment and consistent explosion.
Experimental and numerical study on flame propagation behaviors in coal dust explosions
Cao, Weiguo (author) / Gao, Wei (author) / Peng, Yuhuai (author) / Liang, Jiyuan (author) / Pan, Feng (author) / Xu, Sen (author)
Powder Technology ; 266 ; 456-462
2014
7 Seiten, 23 Quellen
Article (Journal)
English
| Engineering Index Backfile | 1925
Arresting coal-dust explosions
| Engineering Index Backfile | 1961
Investigations of coal-dust explosions
| Engineering Index Backfile | 1914
Detailed analysis of flame propagation during dust explosions by UV band observations
| Tema Archive | 2006
A Comparison Study of Hybrid Flame of Methane/Coal Dust Mixture in Vented Explosions
| Tema Archive | 2013