CFD simulation of fluidized bed reactors for polyolefin production–A review

MJH Khan, MA Hussain, Z Mansourpour… - Journal of Industrial and …, 2014 - Elsevier
This literature survey focuses on the application of computational fluid dynamics (CFD) in
various aspects of the fluidized bed reactor. Although fluidized bed reactors are used in …

Macroscopic modelling of fluid dynamics in large-scale circulating fluidized beds

D Pallarès, F Johnsson - Progress in energy and combustion science, 2006 - Elsevier
Macroscopic (semi-empirical) models for fluid dynamics of circulating fluidized bed (CFB)
units are presented, with emphasize on applications for conditions relevant to industrial units …

Study of wall boundary condition in numerical simulations of bubbling fluidized beds

T Li, J Grace, X Bi - Powder Technology, 2010 - Elsevier
The influence of the solid-phase wall boundary condition was investigated in Eulerian–
Eulerian numerical simulations of a bubbling fluidized bed. Parametric studies of the particle …

Investigation into the hydrodynamics of gas–solid fluidized beds using particle image velocimetry coupled with digital image analysis

JA Laverman, I Roghair… - … Canadian Journal of …, 2008 - Wiley Online Library
The hydrodynamics of a freely bubbling, pseudo 2‐D fluidized bed has been investigated
experimentally for different bed aspect ratios at different superficial gas velocities by using …

Experimental studies on the terminal velocity of air bubbles in water and glycerol aqueous solution

L Liu, H Yan, G Zhao, J Zhuang - Experimental Thermal and Fluid Science, 2016 - Elsevier
Terminal rising velocity of a single bubble in stagnant water and glycerol aqueous solution
was studied by the techniques of high-speed photography and digital image analysis. The …

Analysis of the bubbling behaviour of 2D gas solid fluidized beds: Part I. Digital image analysis technique

A Busciglio, G Vella, G Micale, L Rizzuti - Chemical Engineering Journal, 2008 - Elsevier
Bubble characteristics are very important in the design of fluidized beds because they
govern hydrodynamics and efficiency of the operation for which the bed is used. In this work …

Fluidization characteristics of cohesive powders in vibrated fluidized bed drying at low vibration frequencies

SE Lehmann, EU Hartge, A Jongsma, IM Deleeuw… - Powder technology, 2019 - Elsevier
Mechanical vibration is often applied in industrial scale fluidized bed dryers for food and
pharmaceutical powders to overcome operational problems caused by the cohesiveness of …

Comparison between two-fluid model simulations and particle image analysis & velocimetry (PIV) results for a two-dimensional gas–solid fluidized bed

F Hernández-Jiménez, S Sánchez-Delgado… - Chemical engineering …, 2011 - Elsevier
This work compares simulation and experimental results of the hydrodynamics of a two-
dimensional, bubbling air-fluidized bed. The simulation in this study has been conducted …

Effect of bubble size and velocity on collision efficiency in chalcopyrite flotation

A Hassanzadeh, BV Hassas, S Kouachi… - Colloids and Surfaces A …, 2016 - Elsevier
In flotation processes, bubble diameter (db), bubble velocity (vb), and turbulence are the key
factors involved in particle-bubble interactions. The collision efficiency (EC) is used as an …

Bubbling fluidized bed characterization using electrical capacitance volume tomography (ECVT)

JM Weber, JS Mei - Powder technology, 2013 - Elsevier
Understanding the fundamentals of gas–solid fluidized beds and, in general, multiphase
flows has been a significant task since the conception of gas–solid fluidization and fluid …