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Modeling Frozen Coal Holding Conditions in Buried Storage Rooms in the Permafrost Zone

  • MINING THERMOPHYSICS
  • Published:
Journal of Mining Science Aims and scope

Abstract

The study addresses efficiency of natural cold and the permafrost properties in the Central and Arctic Yakutia in holding of frozen coal in buried storage rooms. The heat transfer modeling takes into account the climate, parameters of a storage room and heat insulation. It is shown that coal thaws less than the host rocks because of its low thermal conductivity. When a storage room is filled in winter, coal will remain frozen for a few years, and heat insulation will greatly reduce the rate of thawing in the overburden. It is emphasized that as against the width and slope of the storage room, its occurrence depth is the main factor to govern the size of the thawed zone by the end of the warm period of storage. Natural cold in the buried storage room decreases coal oxidation, preserves coal properties, and improves energy security of the hard-to-reach areas.

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Authors and Affiliations

  1. Chersky Institute of Mining of the North, Siberian Branch, Russian Academy of Sciences, 677980, Yakutsk, Russia

    Yu. A. Khokholov

  2. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, 630091, Novosibirsk, Russia

    V. L. Gavrilov

Authors
  1. Yu. A. Khokholov
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  2. V. L. Gavrilov
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Correspondence to Yu. A. Khokholov or V. L. Gavrilov.

Additional information

Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2022, No. 1, pp. 82-94. https://doi.org/10.15372/FTPRPI20220109.

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Khokholov, Y.A., Gavrilov, V.L. Modeling Frozen Coal Holding Conditions in Buried Storage Rooms in the Permafrost Zone. J Min Sci 58, 74–81 (2022). https://doi.org/10.1134/S1062739122010094

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  • DOI: https://doi.org/10.1134/S1062739122010094

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