不活性粉体が浮遊する固気混相系の火炎構造の研究

概要

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Considering a combustion system of a combustible gas mixture with particle suspension, the suspended particles have two major effects. One is the supperession of combustion by the heat capacity of particles, and the other is the combustion augmentation by the energy recirculation based on radiative heat transfer. Although the former has often been taken into account when a gas-solid two phase combustion system is considered, the latter has been avoided because of the difficulties in the rigorous treatment of radiative propagation. This study is aimed at clarifying the, effects of radiative heat transfer on the flame structure and burning velocity in a gas-solid two phase system. Using a strict treatment of radiation, a numerical medel is developed describing a onedimensional model of a flame involving a burning mixture with inert particle suspensions. The result shows that the effect of augmentation is superior to that of supperession when the loading ratio is small, and vice versa when it becomes large.
一般社団法人日本機械学会の論文
1990-07-25