Experimental and model studies on particle circulation rate in internal circulating clapboard-type fluidized bed

被引：0
|
作者：
Jiang G. [1 ]
Wei L. [1 ]
Wu C. [1 ]
Peng L. [1 ]
He N. [1 ]
Chen Z. [1 ]
机构：
[1] Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, College of Chemical Engineering, Xibei University, Xi'an, 710069, Shaanxi
来源：
Huagong Xuebao/CIESC Journal | 2017年 / 68卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Fluidized-bed; Internal circulation; Particle circulation rate; Two-phase flow; Voidage;
D O I：
10.11949/j.issn.0438-1157.20170561
中图分类号：
学科分类号：
摘要：
The influence of fluidization velocity in high and low velocity regions, height of static bed, and clapboard gap on internal flow of particles in internal circulating clapboard-type fluidized bed were experimentally studied by changing operating conditions and structural parameters. The results showed that the particle circulation rate was significantly affected by these four parameters. The particle circulation rate first increased and then decreased with the increase of one parameter while the other three parameters were kept unchanged. Hence, particle circulation is a nonlinear complex system of multiple operational and structural parameters. The La Nazue model was modified to predict the particle circulation rate without providing pressure drop between clapboard gap. The error between the calculated and experimental results for various particles was within 23%. © All Right Reserved.
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页码：3427 / 3433
页数：6
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