Research Article Open Access

Thermal Stability Analysis in a Two-Step Reactive Cylindrical Stockpile

R.S. Lebelo1, R.K. Mahlobo1 and K.C. Moloi2
  • 1 Faculty of Applied Sciences, Department of Mathematics, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, South Africa
  • 2 Faculty of Human Sciences, Department of Education, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, South Africa

Abstract

Thermal stability analysis in a cylindrical stockpile of reactive material undergoing a two-step low-temperature oxidation reaction is studied in this article. The reactant consumption in this case is neglected and heat transfer with thermal stability are investigated by application of the energy equation. The complicated combustion process results with nonlinear interactions and hence the nonlinear partial differential equation governing the problem is tackled numerically using the semi-implicit Finite Difference Method (FDM). Kinetic parameters embedded on the governing partial differential equation, are varied to study the behavior of the temperature during the combustion process. The results are depicted graphically and adequately discussed, to bring an understanding of heat transfer and thermal stability during the combustion process. The study in this paper is relevant to multistep combustion process analogous to the fuel combustion in automobiles. The results, in general, show that thermal stability is more for sensitized chemical kinetics than for bimolecular type of kinetics.

American Journal of Applied Sciences
Volume 15 No. 2, 2018, 124-131

DOI: https://doi.org/10.3844/ajassp.2018.124.131

Submitted On: 19 June 2017 Published On: 6 December 2017

How to Cite: Lebelo, R., Mahlobo, R. & Moloi, K. (2018). Thermal Stability Analysis in a Two-Step Reactive Cylindrical Stockpile. American Journal of Applied Sciences, 15(2), 124-131. https://doi.org/10.3844/ajassp.2018.124.131

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Keywords

  • Thermal Stability
  • Heat Transfer
  • Two-Step Low-Temperature Oxidation Reaction
  • Cylindrical Pipe