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The analysis of heat transfer during the decomposition of nitrogen dioxide (NO2) is considered. The analysis is modelled in a cylindrical domain and an exothermic chemical reaction is assumed to initiate the decomposition reaction following a two-step reaction mechanism process. Heat loss to the environment is assumed to follow a convective means. The analysis of heat transfer is attained by studying the variation of selected kinetic parameters embedded in the governing partial differential equation. The non-linear differential equation is solved numerically by the semi-implicit finite difference method (FDM). Some selected parameters such as the rate of reaction indicate the acceleration of the exothermic chemical reaction to enhance the heat release, whilst others such as the activation energy show a retardation of the process to reduce the heat release.

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Heat Transfer Analysis of a Two-Step Nitrogen Dioxide Decomposition: A Numerical Approach

  • 会议论文

  • 发表日期：

    2026年

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  • Ramoshweu S. Lebelo,
  • Samuel O. Adesanya,
  • Michael Klink,
  • Lucas T. Melato

摘要

The analysis of heat transfer during the decomposition of nitrogen dioxide (NO2) is considered. The analysis is modelled in a cylindrical domain and an exothermic chemical reaction is assumed to initiate the decomposition reaction following a two-step reaction mechanism process. Heat loss to the environment is assumed to follow a convective means. The analysis of heat transfer is attained by studying the variation of selected kinetic parameters embedded in the governing partial differential equation. The non-linear differential equation is solved numerically by the semi-implicit finite difference method (FDM). Some selected parameters such as the rate of reaction indicate the acceleration of the exothermic chemical reaction to enhance the heat release, whilst others such as the activation energy show a retardation of the process to reduce the heat release.