Effect of changes in particle size on the hydrodynamics of gas-solid fluidized beds through wall vibration

被引：12

作者：

Alamolhoda, Fatemeh ^{[1
]}

Zarghami, Reza ^{[1
]}

Sotudeh-Gharebagh, Rahmat ^{[1
]}

Mostoufi, Navid ^{[1
]}

机构：

[1] Univ Tehran, Coll Engn, Sch Chem Engn, Multiphase Syst Res Lab, POB 11155-4563, Tehran, Iran

来源：

POWDER TECHNOLOGY | 2017年 / 307卷

关键词：

Fluidized bed; Agglomeration; Vibration signature; Wavelet transform; Principal component analysis; AGGLOMERATION DETECTION; BUBBLE-SIZE; PRESSURE;

D O I：

10.1016/j.powtec.2016.11.030

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Vibration signatures of a wall of a bubbling fluidized bed were measured in order to investigate the effect of change in particle size on fluidized bed hydrodynamics. Vibration signatures were analyzed using wavelet transform and decomposed into three scales: micro-, meso- and macro-scales. Principal component analysis (PCA) was employed to gain a deeper insight into the dynamic behaviour of each sub scale. Bubble and emulsion phases were distinguished by the PCA as first and second components. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：129 / 136

页数：8

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