Disasters of gas-coal spontaneous combustion in goaf of steeply inclined extra-thick coal seams

Zhang, Qiming; Wang, Enyuan; Feng, Xiaojun; Liu, Shuxin; Chen, Dong

doi:10.1016/j.jrmge.2023.12.008

Journal of Rock Mechanics and Geotechnical Engineering

2024

DOI: 10.1016/j.jrmge.2023.12.008

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Disasters of gas-coal spontaneous combustion in goaf of steeply inclined extra-thick coal seams

Qiming Zhang,

Enyuan Wang,

Xiaojun Feng

et al.

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Cited by 4 publications

References 33 publications

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Editorial for advances in slope deformation and failure analysis methods

Meng,

Piciullo,

Choi

et al. 2024

Journal of Rock Mechanics and Geotechnical Engineering

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Editorial for advances in slope deformation and failure analysis methods

Meng,

Piciullo,

Choi

et al. 2024

Journal of Rock Mechanics and Geotechnical Engineering

View full text Add to dashboard Cite

Effect of Coal Spontaneous Combustion Gases on the Laminar Burning Velocity of the CH₄/Air Premixed Flame

Tian,

Liang,

Luo

et al. 2024

ACS Chem. Health Saf.

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In order to investigate the effect of coal spontaneous combustion (CSC) gases such as CO, C 2 H 4 , C 2 H 6 , C 3 H 8 , C 2 H 2 , and H 2 on the laminar burning velocity (LBV) of the CH 4 /air premixed flame, a constant volume chamber and a highspeed camera were used to measure the LBV of a 90% (in vol) CH 4 and 10% CSC gas mixed fuel at an initial temperature of 300 K and over a wide equivalence ratio range from 0.7 to 1.3. Results show that the addition of all the CSC gases increases the LBV of CH 4 . Among all CSC gases, the CH 4 /C 2 H 2 mixed fuel has the highest LBV, and the CH 4 /CO mixed fuel has the lowest LBV. With the addition of three typical stages of CSC gases, the LBV of CH 4 was significantly enhanced. Based on the reaction path, mole fraction, and rate of production analysis, it is found that the addition of CSC gases in Stage 2 can increase the concentration of C 2 H 5 and the consumption rate in the CH 3 −C 2 H 6 −C 2 H 5 path, which is different from Stages 1 and 3. In addition, all the concentrations of H, O, and OH free radicals increase with the addition of three typical stages of CSC gases.

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Preparation and Performance of ATH-OPC-PEG Bilayer Microcapsules Based on Targeted Flame Retardation Against Spontaneous Coal Combustion

Li,

Zhang,

Wang

et al. 2024

Combustion Science and Technology

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Disasters of gas-coal spontaneous combustion in goaf of steeply inclined extra-thick coal seams

Cited by 4 publications

References 33 publications

Editorial for advances in slope deformation and failure analysis methods

Editorial for advances in slope deformation and failure analysis methods

Effect of Coal Spontaneous Combustion Gases on the Laminar Burning Velocity of the CH₄/Air Premixed Flame

Preparation and Performance of ATH-OPC-PEG Bilayer Microcapsules Based on Targeted Flame Retardation Against Spontaneous Coal Combustion

Contact Info

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About

Disasters of gas-coal spontaneous combustion in goaf of steeply inclined extra-thick coal seams

Cited by 4 publications

References 33 publications

Editorial for advances in slope deformation and failure analysis methods

Editorial for advances in slope deformation and failure analysis methods

Effect of Coal Spontaneous Combustion Gases on the Laminar Burning Velocity of the CH4/Air Premixed Flame

Preparation and Performance of ATH-OPC-PEG Bilayer Microcapsules Based on Targeted Flame Retardation Against Spontaneous Coal Combustion

Contact Info

Product

Resources

About

Effect of Coal Spontaneous Combustion Gases on the Laminar Burning Velocity of the CH₄/Air Premixed Flame