کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4914755 | 1427718 | 2018 | 8 صفحه PDF | دانلود رایگان |
- The addition of methane in a coal dust-air system increased the violence of an explosion.
- Unburned coal dust functions as a heat sink and decreased the pressure rises.
- Flame propagation in the duct was occurred in a deflagration state.
- An increase of duct length increased the confinedness and the pressure rises in the vessel.
This article reports an investigation on the explosion characteristics of methane-coal dust hybrid mixtures in a ducted spherical vessel. Methane-coal dust hybrid mixture explosion can occur in coal mines and spread into mine tunnels. While investigating the effects of methane addition to coal dust-air mixtures, the violence of coal dust explosions was found to increase significantly in the presence of methane. The energy of ignition was found to impact on the pressure rises in the vessel and in the duct. The experimental data and scientific analysis presented can assist in addressing ducted explosions originating from hybrid mixtures in process industries such as coal mines.
121
Journal: Powder Technology - Volume 323, 1 January 2018, Pages 95-102