Abstract

The paper presents the mathematical model of air and oxy–fuel combustion of single coal particles. The combustion process has been treated as a spherically–symmetric one. The 1–dimensional time–dependent conservation equations governing the process have been numerically solved using the RICE method. The presence of a coal particle, which was treated as a discrete Lagrange particle, has modified the boundary conditions at the gas–solid interface. Numerical results show good agreement with the experimental results.

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