STUDY ON THE EFFECT OF VOLATILE FLAME ON THE COMBUSTION OF A CHAR PARTICLE

摘要：

The model that takes chemical reactions, heat and mass transfers in the boundary layer of the particle into account simultaneously, is developed for simulating the combustion of a pulverized-coal particle. The FTIR temperature-measuring experiments and the numerical simulations between the pulverized coal and the devolatilized char show that the volatile flame induces the combustion of the primary product of surface reaction CO. Due to the influence of volatile flame, the char particle may be ignited at temperature lower than its heterogeneous ignition temperature, which elucidates the physical essence of Joint Hetero-homogeneous Ignition mode discovered by Jüntgen.

关键词： coal/char particle volatile flame CO volumetric reaction combustion Joint Hetero-homogeneous Ignition

作者: Mingchuan ZHANG Juan YU Jian ZHANG Chu ZHANG

作者单位: School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China

会议类型: 国际会议

会议名称: 第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)

会议地点: 武汉

会议语种:英文

页码: 241-246

在线出版日期: 2007-12-01（万方平台首次上网日期，不代表论文的发表时间）