Influence of horizontal tube banks on the behavior of bubbling fluidized beds 1. Bubble hydrodynamics

被引：43
|
作者：
Hull, AS [1 ]
Chen, ZM [1 ]
Fritz, JW [1 ]
Agarwal, PK [1 ]
机构：
[1] Univ Wyoming, Dept Chem & Petr Engn, Laramie, WY 82071 USA
来源：
POWDER TECHNOLOGY | 1999年 / 103卷 / 03期
基金：
澳大利亚研究理事会; 美国国家科学基金会;
关键词：
fluidized bed; bubble behavior; horizontal tubes;
D O I：
10.1016/S0032-5910(99)00021-2
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Experimental data on bubble characteristics-averaged size and rise velocity-were obtained using digital image analysis methods from two-dimensional (thin) bubbling fluidized beds with and without simulated horizontal tube bundles, These data were used to develop semiempirical correlations for bubble size and rise velocity. These mechanistic correlations can be extrapolated readily to three-dimensional fluidized beds, and calculations for bubble size, velocity and bubble fraction compare favorably with relevant literature data. Application of these correlations for bubble behavior in the interpretation of experimental data on the mixing of solids-in two- and three-dimensional fluidized beds containing horizontal tubes-is illustrated in an accompanying paper. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：230 / 242
页数：13
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