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Self-ignition mechanism for coal

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Combustion, Explosion and Shock Waves Aims and scope

Conclusions

  1. 1.

    A fundamentally new hypothesis is suggested for occurrence of self-ignition in coal.

  2. 2.

    The hypothesis obtained is checked by calculations for a linear unit and a structural unit of coal.

  3. 3.

    The probability of forming seats of self-ignition at a distance from the combustion front is higher than close to it.

  4. 4.

    Conditions for forming seats of self-ignition do not require transfer of coal into a plastic state and application of a possible hypothesis of cumulative collapse of gasfilled bubbles with release of the required energy (apart from the case of μ2=402).

  5. 5.

    On the basis of the hypothesis suggested it is possible to suggest a mechanism of forced intensification of coal seam combustion by converting it into coal detonation.

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Authors
  1. Yu. S. Stepanov
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  2. V. A. Andrushchenko
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Additional information

Moscow. Translated from Fizika Goreniya i Vzryva, Vol. 26, No. 2, pp. 23–28, March–April, 1990.

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Stepanov, Y.S., Andrushchenko, V.A. Self-ignition mechanism for coal. Combust Explos Shock Waves 26, 147–152 (1990). https://doi.org/10.1007/BF00742399

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  • DOI: https://doi.org/10.1007/BF00742399

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