FUNDAMENTAL UNDERSTANDING OF GOAF GAS DISPLACEMENT IN LONGWALL GOAF

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TANGUTURI K.M.; BALUSU R.

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Journal: JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES) Year:2015 | Volume:6 | Issue:2 Page(s): 191-203

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Title

FUNDAMENTAL UNDERSTANDING OF GOAF GAS DISPLACEMENT IN LONGWALL GOAF

Author(s)

TANGUTURI K.M. | BALUSU R. | Issue Writer Certificate

Keywords

MAINGATE (MG)Q2

TAILGATE (TG)Q2

START-UPQ2

FACEQ2

PANELQ2

Abstract

Fundamental understanding of the goaf gas distribution in a gassy coal mine is necessary for developing effective goaf gas drainage strategies in the longwall coal mine. The goaf gas was subjected to the surface and body forces that were classified depending upon whether they acted on the surface area or the volume of the gas element. Of these forces, the body forces were more predominant in displacing the goaf gas present in the underground mine. The buoyancy forces were classified as the body forces; they are the predominant forces acting on the goaf gas. The buoyancy forces depend mainly upon the density variation in the gas species and the PANEL orientation or PANEL geometry. If the temperature variations are neglected, the buoyancy forces that cause the displacement of the goaf gas depend mainly upon the PANEL orientation. In this work, numerical investigations were carried out using the computational fluid dynamics (CFD) techniques for the fundamental understanding of the goaf gas displacement for various PANEL orientations. The numerical results obtained for various PANEL orientations indicated that the goaf gas is displaced towards the tailgate (TG) side when the maingate (MG) was downdip, towards the MG side when MG was updip, towards the START-UP of the PANEL when the FACE was downdip, and towards the FACE when the FACE was updip.

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APA: Copy

TANGUTURI, K.M., & BALUSU, R.. (2015). FUNDAMENTAL UNDERSTANDING OF GOAF GAS DISPLACEMENT IN LONGWALL GOAF. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), 6(2), 191-203. SID. https://sid.ir/paper/256280/en

Vancouver: Copy

TANGUTURI K.M., BALUSU R.. FUNDAMENTAL UNDERSTANDING OF GOAF GAS DISPLACEMENT IN LONGWALL GOAF. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES)[Internet]. 2015;6(2):191-203. Available from: https://sid.ir/paper/256280/en

IEEE: Copy

K.M. TANGUTURI, and R. BALUSU, “FUNDAMENTAL UNDERSTANDING OF GOAF GAS DISPLACEMENT IN LONGWALL GOAF,” JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), vol. 6, no. 2, pp. 191–203, 2015, [Online]. Available: https://sid.ir/paper/256280/en

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