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Process intensification in a gas–solid vortex unit : computational fluid dynamics model based analysis and design

Laurien Vandewalle (UGent) , Arturo González Quiroga (UGent) , Patrice Perreault (UGent) , Kevin Van Geem (UGent) and Guy Marin (UGent)
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Abstract
The process intensification abilities of gas-solid vortex units (GSVU) are very promising for gas-solid processes. By working in a centrifugal force field, much higher gas-solid slip velocities can be obtained compared to gravitational fluidized beds, resulting in a significant increase in heat and mass transfer rates. In this work, local azimuthal and radial particle velocities for an experimental GSVU are simulated using the Euler-Euler framework in OpenFOAM and compared with particle image velocimetry measurements. With the validated model, the effect of the particle diameter, number of inlet slots and reactor length on the bed hydrodynamics is assessed. Starting from lg-Geldart-B type particles, increasing the particle diameter or density, increasing the number of inlet slots or increasing the gas injection velocity leads to an increased bed stability and uniformity. However, a trade-off has to be made since increased bed stability and uniformity lead to higher shear stresses and attrition.
Keywords
Industrial and Manufacturing Engineering, General Chemistry, General Chemical Engineering, STATIC GEOMETRY, KINETIC-THEORY, GRANULAR FLOW, PARTICLES, BED, PYROLYSIS, FIELD, HEAT, MASS

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MLA
Vandewalle, Laurien, et al. “Process Intensification in a Gas–Solid Vortex Unit : Computational Fluid Dynamics Model Based Analysis and Design.” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 58, no. 28, 2019, pp. 12751–65.
APA
Vandewalle, L., González Quiroga, A., Perreault, P., Van Geem, K., & Marin, G. (2019). Process intensification in a gas–solid vortex unit : computational fluid dynamics model based analysis and design. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 58(28), 12751–12765.
Chicago author-date
Vandewalle, Laurien, Arturo González Quiroga, Patrice Perreault, Kevin Van Geem, and Guy Marin. 2019. “Process Intensification in a Gas–Solid Vortex Unit : Computational Fluid Dynamics Model Based Analysis and Design.” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58 (28): 12751–65.
Chicago author-date (all authors)
Vandewalle, Laurien, Arturo González Quiroga, Patrice Perreault, Kevin Van Geem, and Guy Marin. 2019. “Process Intensification in a Gas–Solid Vortex Unit : Computational Fluid Dynamics Model Based Analysis and Design.” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58 (28): 12751–12765.
Vancouver
1.
Vandewalle L, González Quiroga A, Perreault P, Van Geem K, Marin G. Process intensification in a gas–solid vortex unit : computational fluid dynamics model based analysis and design. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. 2019;58(28):12751–65.
IEEE
[1]
L. Vandewalle, A. González Quiroga, P. Perreault, K. Van Geem, and G. Marin, “Process intensification in a gas–solid vortex unit : computational fluid dynamics model based analysis and design,” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 58, no. 28, pp. 12751–12765, 2019.
@article{8626127,
  abstract     = {The process intensification abilities of gas-solid vortex units (GSVU) are very promising for gas-solid processes. By working in a centrifugal force field, much higher gas-solid slip velocities can be obtained compared to gravitational fluidized beds, resulting in a significant increase in heat and mass transfer rates. In this work, local azimuthal and radial particle velocities for an experimental GSVU are simulated using the Euler-Euler framework in OpenFOAM and compared with particle image velocimetry measurements. With the validated model, the effect of the particle diameter, number of inlet slots and reactor length on the bed hydrodynamics is assessed. Starting from lg-Geldart-B type particles, increasing the particle diameter or density, increasing the number of inlet slots or increasing the gas injection velocity leads to an increased bed stability and uniformity. However, a trade-off has to be made since increased bed stability and uniformity lead to higher shear stresses and attrition.},
  author       = {Vandewalle, Laurien and González Quiroga, Arturo and Perreault, Patrice and Van Geem, Kevin and Marin, Guy},
  issn         = {0888-5885},
  journal      = {INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH},
  keywords     = {Industrial and Manufacturing Engineering,General Chemistry,General Chemical Engineering,STATIC GEOMETRY,KINETIC-THEORY,GRANULAR FLOW,PARTICLES,BED,PYROLYSIS,FIELD,HEAT,MASS},
  language     = {eng},
  number       = {28},
  pages        = {12751--12765},
  title        = {Process intensification in a gas–solid vortex unit : computational fluid dynamics model based analysis and design},
  url          = {http://dx.doi.org/10.1021/acs.iecr.9b01566},
  volume       = {58},
  year         = {2019},
}

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