BURNING OF SINGLE CARBON PARTICLE APPROACHED BY ACTIVATION ENERGY ASYMPTOTICS

Abstract

Abstract: The method of activation energy asymptotics is used to treat the combustion of a single carbon particle in quiescent gas mixture with high temperature. Both heterogeneous reactions 2C+O₂ →2CO, C+CO₂→2CO and homogeneous reaction 2CO+O₂ 2CO₂ are considered. It is shown that the burning of the particle principally is carried out during a diffusion-limited period. Four brief and complex periods through which the history of the particle evolves from a heat-up period to the diffusion-limited period are described. A comparison between results of activation energy asymptotics and exact numerical solutions is given. The agreement is considered satisfactory.

Key words: unsteady flow, composite, microchannel

Xie Ding-guo . BURNING OF SINGLE CARBON PARTICLE APPROACHED BY ACTIVATION ENERGY ASYMPTOTICS. Applied Mathematics and Mechanics (English Edition), 1987, 8(8): 745-757.

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