Effect of turbulence intensity on flame propagation and extinction limits of methane/coal dust explosions

H Jiang, M Bi, Z Gao, Z Zhang, W Gao - Energy, 2022 - Elsevier
Methane/coal dust explosions pose a serious threat to the safety of coal mining. Since the
flow field in the tunnel is unsteady, the effect of turbulence on flame propagation is essential …

Suppression effect of ultra-fine water mist on methane-coal dust hybrid explosion

X Feng, J Ren, M Pu, B Chen, M Bi - Powder Technology, 2022 - Elsevier
Methane and coal dust hybrid explosion and its suppression have always been a hot issue.
In this study, the suppression effect of ultra-fine water mist on methane coal dust mixed …

Explosion overpressure behavior and flame propagation characteristics in hybrid explosions of hydrogen and magnesium dust

W Ji, Y Wang, J Yang, J He, C Lu, X Wen, Y Wang - Fuel, 2023 - Elsevier
The explosion risk of a hybrid mixture of hydrogen and magnesium dust is relatively high
during the production of magnesium-based hydrogen storage materials and industrial …

Effects of ignition energy on fire and explosion characteristics of dilute hybrid fuel in ventilation air methane

MJ Ajrash, J Zanganeh, B Moghtaderi - Journal of Loss Prevention in the …, 2016 - Elsevier
Deflagration explosions of coal dust clouds and flammable gases are a major safety concern
in coal mining industry. Accidental fire and explosion caused by coal dust cloud can impose …

Influence of coal dust on premixed turbulent methane–air flames

SR Rockwell, AS Rangwala - Combustion and Flame, 2013 - Elsevier
This study discusses the design of a new experimental platform, the Hybrid Flame Analyzer
(HFA) to measure burning velocity of gas, dust, and hybrid (gas and dust) premixed flames …

The flame deflagration of hybrid methane coal dusts in a large-scale detonation tube (LSDT)

MJ Ajrash, J Zanganeh, B Moghtaderi - Fuel, 2017 - Elsevier
To gain a deeper understanding for the influences of coal dust on methane flame
deflagrations in chemical plants, a LSDT has been established at the University of …

Effects of aluminum particle size distributions on the explosion behaviors of hydrogen/aluminum dust hybrid mixtures

X Yu, X Yan, J Yu, W Gao - Powder Technology, 2022 - Elsevier
The effects of aluminum particle size on the explosion behaviors of hydrogen/aluminum dust
hybrid explosion were studied. The results show that due to the large specific surface area of …

Investigation of the physical and chemical effects of fire suppression powder NaHCO3 addition on methane-air flames

R Fan, Y Jiang, W Li, C Xiong, R Qiu - Fuel, 2019 - Elsevier
In this study, the influence of fire suppression powder NaHCO 3 on premixed flames was
investigated experimentally and numerically. To better understand the suppression …

Acceleration characteristics of composite flame in the initial stage of gas/coal dust explosion and analysis of disaster intensification

P Bei, G Jiaqi, Z Zhiyin, C Liwei, L Chang… - Journal of Loss Prevention …, 2023 - Elsevier
To clarify the strengthening mechanism of gas/coal dust coupling explosion disasters, a 20 L
spherical explosion test system, high-speed schlieren, and PIV analysis were used to study …

Pd/Co3O4-based catalysts prepared by solution combustion synthesis for residual methane oxidation in lean conditions

G Ercolino, G Grzybek, P Stelmachowski, S Specchia… - Catalysis Today, 2015 - Elsevier
In this work a series of palladium doped cobalt spinel catalysts was synthesized via solution
combustion synthesis plus incipient wetness impregnation and tested in lean CH 4 …