Thermal decomposition analysis in a sphere of combustible materials

Lebelo, Ramoshweu Solomon ; Makinde, Oluwole Daniel ; Chinyoka, T. (2017)

CITATION: Lebelo, R. S., Makinde, O. D. & Chinyoka, T. 2017. Thermal decomposition analysis in a sphere of combustible materials. Advances in Mechanical Engineering, 9(2):1–14, doi:10.1177/1687814017692515.

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In this article, we look at spontaneous combustion due to exothermic chemical reaction taking place within a stockpile of combustible material. The model includes mass and energy balance equations in a spherical domain. The complicated chemical reaction is simplified by considering a one-dimensional process. The differential equations governing the problem are solved using semi-implicit finite difference method. The effects of kinetic parameters embedded within the system are analyzed and the results are expressed graphically and discussed accordingly.

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