New one-dimensional hydrodynamics of circulating fluidized bed risers

被引：10
|
作者：
Collado, Francisco J. [1 ]
机构：
[1] Univ Zaragoza, Dept Mech Engn, Maria de Luna 3, Zaragoza 50018, Spain
来源：
GRANULAR MATTER | 2016年 / 18卷 / 04期
关键词：
Circulating fluidized beds; One-dimensional gas-solid flows; Characteristic particle velocity; Void fraction; Pressure drop; FLOW; MODEL; PRESSURE;
D O I：
10.1007/s10035-016-0674-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A one-dimensional analysis of the hydrodynamics of circulating fluidized bed risers is performed following brand new mass and momentum balances for a gas-solids flow that the author has recently proposed. This analysis also includes a characteristic slip velocity between the phases derived from classical particle mechanics (the single particle equation). The predictions of the pressure drop and the solids holdup axial profiles, and the dense bed height are successfully compared with a rather limited amount of data.
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页数：14
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