Goaf gas flow modelling in 6km long longwall panels
Keywords:
Maingate (MG); Tailgate (TG); Goaf; Oxygen; Ingress;
Abstract
Understanding the goaf gas distribution in the start-up areas and in long retreat panel is critical for developing gas management strategies. Extensive computational fluid dynamics modelling studies have been conducted and calibrated using operational longwall goaf data to obtain first a fundamental understanding of goaf gas flow patterns in longwall panels of various goaf lengths and the effect of goaf gas emission rates on the goaf gas flow patterns. The details and results of various investigations in the 6km long panels for goaf lengths of 500 m, 1.0km, 3.0 km and 6.0 km under modelled field site conditions are presented in this paper.
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BALUSU, R. et al. (2004) Optimisation of Longwall Goaf Gas Drainage and Control System, ACARP Report No: C10017.
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TANGUTURI, K., BALUSU, R. and RAMAKRISHNA, M. (2014) CFD Modeling of Methane Gas Distribution and Control Strategies in a Gassy Coal Mine. The Journal of Computational Multiphase Flows, 1, pp. 65-77.
TANGUTURI, K. et al. (2013) Effect of buoyancy on methane gas distribution and gas control strategies at tailgate region in a gassy coal mine. In: 9th International Conference on CFD in the minerals and process Industries, Melbourne, December 2013. pp. 1-6.
TANGUTURI, K. and BALUSU, R. (2015) Fundamental understanding of goaf gas displacement in longwall goaf. Iranian Journal of Mining & Environment, 2, pp 191-203.
YARLAGADDA, S., BALUSU, R., and VEERAREDDY, B. (2011) Proactive Strategies for Prevention and Control of Fires in Bord and Pillar Mines Working in Thick Coal Seams, The Australasian Institute of Mining and Metallurgy, pp.249 – 256.
AZIZ, N., BALUSU, B. and BAAFI, E. (1993). Application of Computational Fluid Dynamics Codes to Develop Effective Gas/Dust Control Measures in Underground Coal Mines. The Australian Coal Journal, 42, pp. 19–27.
BALUSU, R. et al. (2002a) An investigation of the gas flow mechanics in longwall goafs. In: 9th US Mine Ventilation Symposium, Kingston, Ontario, Canada, June 2002. Rotterdam: AA Balkema Publishers, pp. 443-450.
BALUSU, R. et al. (2004) Optimisation of goaf gas drainage and control strategies.
ACARP Project C10017, CSIRO Exploration and Mining Report 1186F, June 2004.
BALUSU, R. et al. (2001) Goaf gas flow mechanics and development of gas and sponcom control strategies at a highly gassy coal mine. Australia-Japan Technology Exchange Workshop, Hunter Valley, Australia, 18.
BALUSU, R. et al. (2004) Optimisation of Longwall Goaf Gas Drainage and Control System, ACARP Report No: C10017.
BALUSU, R. et al. (2002b) Optimum Inertisation Strategies. In: Proceedings of the Queensland Mining Industry Health and Safety Conference, Townsville, Australia. pp.133 – 144.
BELLE, B. (2015) Innovative tailgate mobile goaf gas management in two gateroad longwall panels – concept to implementation. In: The Australian Mine Ventilation Conference, Sydney, Australia, September 2015.
ROY, M. et al. (2010) Strategic review of gas management options for reduced GHG emissions. ACARP Report No: C17057.
TANGUTURI, K., BALUSU, R. and RAMAKRISHNA, M. (2014) CFD Modeling of Methane Gas Distribution and Control Strategies in a Gassy Coal Mine. The Journal of Computational Multiphase Flows, 1, pp. 65-77.
TANGUTURI, K. et al. (2013) Effect of buoyancy on methane gas distribution and gas control strategies at tailgate region in a gassy coal mine. In: 9th International Conference on CFD in the minerals and process Industries, Melbourne, December 2013. pp. 1-6.
TANGUTURI, K. and BALUSU, R. (2015) Fundamental understanding of goaf gas displacement in longwall goaf. Iranian Journal of Mining & Environment, 2, pp 191-203.
YARLAGADDA, S., BALUSU, R., and VEERAREDDY, B. (2011) Proactive Strategies for Prevention and Control of Fires in Bord and Pillar Mines Working in Thick Coal Seams, The Australasian Institute of Mining and Metallurgy, pp.249 – 256.
Published
2017-12-31
How to Cite
Tanguturi, K., Balusu, R., & Dlamini, B. (2017). Goaf gas flow modelling in 6km long longwall panels. Podzemni Radovi, (31), 1-15. https://doi.org/10.5937/podrad1731001T
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Section
Articles
This work is licensed under a Creative Commons Attribution 4.0 International License.
