Numerical modeling of gas flow in coal pores for methane drainage

Taheri, Adel and Sereshki, Farhang and Ardejani, Faramarz Doulati and Mirzaghorbanali, Ali (2016) Numerical modeling of gas flow in coal pores for methane drainage. Journal of Sustainable Mining, 15. pp. 95-99. ISSN 2300-3960

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Abstract

The sudden explosion of methane during underground coal mining is a major dilemma. To mitigate its occurrence and reduce the extent of methane diffusion, gas drainage operations are carried out before mining. This paper investigates methane gas flow in a coal block in order to calculate the pressure of gas and its molecule velocity for methane gas drainage operation. A coal piece surrounded by cleats was used for geometrical modeling and numerical simulation. Movements of fluid and gas molecules in a porous medium were successfully simulated. The numerical solution is based on COMSOL Multiphysics software. The validity of the numerical simulation was assessed using an analytical model with satisfactory results.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 02 Mar 2017 04:40
Last Modified: 02 Mar 2017 04:48
Uncontrolled Keywords: coal mining; methane drainage; gas flow; numerical simulation
Fields of Research : 09 Engineering > 0999 Other Engineering > 099999 Engineering not elsewhere classified
Identification Number or DOI: 10.1016/j.jsm.2016.10.001
URI: http://eprints.usq.edu.au/id/eprint/30782

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