Hydrodynamics of pulsed spouted beds: Effects of pulsation waveform, amplitude, and frequency

被引：16

作者：

Saidi, Maysam ^{[1
]}

Tabrizi, Hassan Basirat ^{[1
]}

Ahmadi, Goodarz ^{[2
]}

Grace, John R. ^{[3
]}

Lim, C. Jim ^{[3
]}

机构：

[1] Amirkabir Univ Technol, Dept Mech Engn, POB 15875-4413, Tehran, Iran

[2] Clarkson Univ, Dept Mech & Aeronaut Engn, Potsdam, NY USA

[3] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC, Canada

来源：

DRYING TECHNOLOGY | 2016年 / 34卷 / 13期

关键词：

Computational fluid dynamics; discrete element method; gas-solid system; particles; pulsation; spouted bed; GAS-SOLID FLOW; FLUIDIZED-BED; MIXING CHARACTERISTICS; NUMERICAL-SIMULATION; OPERATING-CONDITIONS; DEM SIMULATION; PARTICLES; MODEL; DYNAMICS; POWDERS;

D O I：

10.1080/07373937.2015.1135942

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of flow pulsations is studied via a discrete element model on hydrodynamics of spouted bed, which is being used in many important industries like drying processes. Decreased horizontal air percolation and preserving upward momentum, increased particle circulation, increased particle traverse distance, and better homogeneity are resulted from flow pulsations in spouted beds. Among the waveforms studied, square and triangular waveforms differ most and least from steady spouting, respectively. The predictions indicate that the pulsed spouted bed has the potential to enhance both gas and particle motion, hence being useful in drying and other operations.

引用

页码：1546 / 1557

页数：12

共 58 条

[1] Enhanced fluidization of nanoparticles with gas phase pulsation assistance [J].