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Inverse problem solution for estimating gas content and gas diffusion coefficient of coal

  • Geomechanics
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Journal of Mining Science Aims and scope

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Abstract

The authors suggest the method of interpreting experimental data on gas pressure in a pressure flask containing a coal specimen, that allows defining gas content and gas diffusion coefficient of coal. The offered method is based on solving an inverse problem for a set of diffusion equations each fitting a certain size within the coal specimen grain-size composition. The numerical experiments have shown that a quantitative estimate of gas content has error not higher than a few per cents, even with input data distortion.

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Authors and Affiliations

  1. N.A. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091, Russia

    L. A. Nazarova & L. A. Nazarov

  2. Institute of Coal, Siberian Branch, Russian Academy of Sciences, Leningradskii pr. 10, Kemerovo, 650065, Russia

    G. Ya. Polevshchikov & R. I. Rodin

Authors
  1. L. A. Nazarova
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  2. L. A. Nazarov
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  3. G. Ya. Polevshchikov
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  4. R. I. Rodin
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Additional information

Original Russian Text © L.A. Nazarova, L.A. Nazarov, G.Ya. Polevshchikov, R.I. Rodin, 2012, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2012, No. 5, pp. 15–23.

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Nazarova, L.A., Nazarov, L.A., Polevshchikov, G.Y. et al. Inverse problem solution for estimating gas content and gas diffusion coefficient of coal. J Min Sci 48, 781–788 (2012). https://doi.org/10.1134/S1062739148050024

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  • DOI: https://doi.org/10.1134/S1062739148050024

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