中文摘要：

为了明确生物质燃烧和阴燃的共性和差异，分类总结了生物质燃烧和阴燃过程的特点，得出大颗粒生物质燃烧过程和自然对流条件下生物质粉正向阴燃物理过程近似的结论．对比了这两种过程的物理化学反应特性、传输机理及边界条件，得出结论：两种过程干燥、热解等物理化学反应机理相同，炭氧化过程稍有差异、边界条件差别很大．

英文摘要：

In order to clarify the similarities and differences between biomass combustion and smoldering, characteristics of the two processes have been reviewed. It showed that the combus-tion of a large biomass particle is similar to the natural convection forward smoldering of piled bi-omass powder. Chemical reaction characteristics, transport mechanisms and boundary conditions are compared between two processes. It showed that the reaction mechanisms of drying, pyroly- sis of the two processes are the same. There is a slight difference in mechanism of char oxidation and a significant difference in boundary conditions between the two processes.