In this paper, clinker formation on the stainless steel mesh during combustion of bamboo powder packed bed has been investigated. The temperature and the amount of clinker adsorption on the mesh were measured. Furthermore, the clinker on the mesh was also observed. It was suggested that the clinker formation process was consisted of two stages as follows. Firstly, the white particles of about 10 μm were adsorbed on the mesh at about 1000 K. Secondly, some large clinkers of about 200 μm due to coalesce of the small particles were formed when the surface temperature on the mesh achieved to about 1200 K.
