CFD-DEM study of bubble properties in a cylindrical fluidized bed of Geldart Group D particles and comparison with prior MRI data

2021 ◽  
Author(s):  
Kenan Xi ◽  
Thomas Kovar ◽  
William D. Fullmer ◽  
Alexander Penn ◽  
Jordan Musser ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Group D ◽  
Bubble Properties

Distribution of bubble properties in a gas-liquid-solid fluidized bed

AIChE Journal ◽  
1984 ◽  
Vol 30 (6) ◽  
pp. 894-903 ◽  
Author(s):  
Akinori Matsuura ◽  
Liang-Shih Fan
Keyword(s):  
Fluidized Bed ◽  
Bubble Properties

Study of Defluidization Region of Large Particles in Fluidized Bed Using the Gaussian Spectral Pressure Distribution

2015 ◽  
Vol 1104 ◽  
pp. 69-74
Author(s):  
Flavia Tramontin Silveira ◽  
Frederic Conrad Janzen ◽  
Maria Regina Parise
Keyword(s):  
Pressure Distribution ◽  
Fluidized Bed ◽  
Pressure Fluctuations ◽  
Fixed Bed ◽  
Environment Temperature ◽  
Large Particles ◽  
Inner Diameter ◽  
Pressure Transmitter ◽  
Group D ◽  
Fluidization Condition

The present work aimed to identify the defluidization region of a gas-solid fluidized bed system composed by Geldart group D particles using the Gaussian spectral pressure distribution technique, which is based on pressure fluctuation measurements in the plenum. In experiments, the defluidization condition of glass beads with apparent density of 2,450 kg/m3 was induced in a plexiglas column of 0.11 m in inner diameter and 1.0 m in height. The gas-solid behavior close to the incipient fluidization condition was assessed for two fixed bed heights (0.10 and 0.20 m) and two mean sizes of particles (1.55 and 2.18 mm in diameter). The bed was fluidized with air at environment temperature. The experimental equipment was instrumented with a pressure transmitter connected to a data acquisition system in order to record the pressure fluctuations of the gas-solid flow. The results showed that the defluidization region can be detected efficiently by using the Gaussian spectral pressure distribution technique, which contributes for a better control of fluidized bed processes.

CFD Modeling and Validation of Bubble Properties for a Bubbling Fluidized Bed

2005 ◽  
Vol 44 (12) ◽  
pp. 4254-4266 ◽  
Author(s):  
Ian Hulme ◽  
Eric Clavelle ◽  
Loni van der Lee ◽  
Apostolos Kantzas
Keyword(s):  
Fluidized Bed ◽  
Cfd Modeling ◽  
Bubbling Fluidized Bed ◽  
Bubble Properties

scholarly journals Comparison of velocimetry methods for horizontal air jets in a semicircular fluidized bed of Geldart Group D particles

2020 ◽  
Vol 359 ◽  
pp. 323-330 ◽  
Author(s):  
William D. Fullmer ◽  
Jonathan E. Higham ◽  
Casey Q. LaMarche ◽  
Allan Issangya ◽  
Ray Cocco ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Air Jets ◽  
Group D
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