氧化环境中炭粒燃烧偏离平衡流解

探讨氧化环境下相对静止的炭粒在偏离平衡流情况下的解。当Ｄｇ降为有限值时，燃烧偏离平衡流，火焰锋面变厚，火焰位置有所偏离，此时燃烧速度取决于表面两个多相反应和空间气相反应，随着Ｄｇ降低，燃烧率下降，当Ｄｇ低于一临界值Ｄｇ＾０时，空间气相反应不再发生。

Combustion of carbon particle departing from equilibrium flow in oxidizing atmosphere

? In equilibrium, complete burning of CO occurs on a flame sheet either adjacent to or at a certain distance of a particle. When the flame sheet is in space, oxygen is totally consumed and can not reach the particle, and the burning rate depends only on the indirect oxidation. The flame is infinitely thin. By lowering D g, the flame becomes thick and the position of the flame shifts away. The burning rate depends on both heterogeneous reactions and homogeneous reaction, and it is reduced when D g decreases. The gas phase reaction does not occur until D g reaches the critical value.