Investigation of the dependence of the process of spontaneous combustion on the particle size of brown coal processing products

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: 10th All-Russian Conference with International Participation on Fuel Combustion: Theory, Experiment, Applications, FCTEA 2018; Novosibirsk; Novosibirsk

Год издания: 2019

Аннотация: The paper presents the results of a study of the process of spontaneous combustion of partially carbonized lignite and sorbent from coal, depending on the particle size. To determine the critical conditions of spontaneous combustion and the effective kinetic parameters of the process proceeding along the thermal mechanism, a special experimental setup was used. The results of the study indicate the influence of particle size on the time of spontaneous combustion and on the rate of oxidation of coal matter. A mathematical model of spontaneous combustion of coal matter is developed. The model uses the spatial nonstationary heat conduction equation, in which the heat release in the process of coal oxidation is taken into account by setting a heat source based on the experimentally obtained kinetic parameters of the spontaneous combustion process-effective activation energy and the pre-exponential factor.

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Издание

Журнал: Journal of Physics: Conference Series

Выпуск журнала: 1261

Номера страниц: 012018

Издатель: Institute of Physics Publishing

Авторы

  • Kuznetsov V. (Kutateladze Institute of Thermophysics)
  • Goryunov Y. (Siberian Federal University)
  • Demenchuk S. (Siberian Federal University)
  • Magdeeva O. (Siberian Federal University)
  • Neobyavlyayushchiy P. (Kutateladze Institute of Thermophysics)
  • Dekterev A. (Kutateladze Institute of Thermophysics)

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