EXPERIMENTAL-VERIFICATION OF SCALING RELATIONSHIPS FOR FLUIDIZED-BED

被引：63

作者：

NICASTRO, MT

GLICKSMAN, LR

机构：

[1] MIT, Dep of Mechanical Engineering,, Cambridge, MA, USA, MIT, Dep of Mechanical Engineering, Cambridge, MA, USA

来源：

CHEMICAL ENGINEERING SCIENCE | 1984年 / 39卷 / 09期

关键词：

FLOW OF FLUIDS - FLUID MECHANICS;

D O I：

10.1016/0009-2509(84)80071-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To verify the scaling relationships for fluidized beds, an atmospheric fluidized bed combustor and a cold bed constructed to operate at the same values of the governing nondimensional parameters were compared. The amplitude and frequency distribution of pressure fluctuations measured in both beds agree closely when these parameters are appropriately nondimensionalized. Thus, bubble characteristics of the two beds should be similar. Disagreements are shown to exist when all the nondimensional parameters are not kept equal between the hot bed and cold model. Variations in the particle size distribution and sphericity also cause non-similar behavior. When the hot material is used in the cold bed, there are significant disagreements between the behavior of the two beds.

引用

页码：1381 / 1391

页数：11