Experimental investigation on secondary air jet penetration depth in the dense zone of a circulating fluidized bed

摘要：

The secondary air jet penetration depth of dense zone is measured in a 0.25mx0.25mx6.07m circulating fluidized bed.The influence of gas velocities (Uo),no zzle diameters,jet velocities,nozzle angel and the solids inventory is studied.A modified empirical correlation for calculating the secondary air jet penetration depth in the dense zone is developed.SA jet penetration depth increases with the increase of jet velocity.With the same flow rate,jet penetration depth becomes smaller as the diameter increases.Horizontal jet has the maximum jet penetration depth.The increasing of gas velocities,nozzle angel and solids inventory will reduce the jet penetration depth.

关键词： Circulating Fluidized beds Dense zone Secondary air jet Penetration depth

作者: Shaozeng Sun Ningbo Zhao Zhengyang Wang Mingkun Du

作者单位: Combustion Engineering Research Institute,Harbin Institute of Technology,Harbin 150001,China

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 431-435

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）