Simulation of mass-loading effects in gas-solid cyclone separators

J. J. Derksen*, S. Sundaresan, H. E. A. van den Akker

*Corresponding author for this work

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Three-dimensional, time-dependent Eulerian-Lagrangian simulations of the turbulent gas-solid flow in a cyclone separator have been performed. The Eulerian description of the gas flow is based on lattice-Boltzmann discretization of the filtered Navier-Stokes equations, where the Smagorinsky subgrid-scale model has been used to represent the effect of the filtered scales. Through this large-eddy representation of the gas flow, solid particles with different sizes are tracked. By viewing the individual particles (of which there are some 10(7) inside the cyclone at any moment in time) as clusters of particles (parcels), we study the effect of particle-to-gas coupling on the gas flow and particle behavior at appreciable mass-loading (0.05 and 0.1). The presence of solid particles causes the cyclone to lose some swirl intensity. Furthermore, the turbulence of the gas flow gets strongly damped. These two effects have significant consequences, for the way the particles of different sizes get dispersed in the gas flow. It is anticipated that the collection efficiency gets affected in opposite senses: negatively by the loss-of-swirl, positively by the reduced turbulence. (C) 2006 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)59-68
Number of pages10
JournalPowder Technology
Volume163
Issue number1-2
Early online date10 Mar 2006
DOIs
Publication statusPublished - 25 Apr 2006
EventAnnual Meeting of the American-Institute-of-Chemical-Engineers - Austin
Duration: 1 Nov 2004 → …

Keywords

  • cyclone separators
  • mass-loading
  • turbulence
  • LES
  • Euler-Lagrange
  • computational fluid dynamics
  • FLOW
  • PERFORMANCE
  • PARTICLES

Cite this

Simulation of mass-loading effects in gas-solid cyclone separators. / Derksen, J. J.; Sundaresan, S.; van den Akker, H. E. A.

In: Powder Technology, Vol. 163, No. 1-2, 25.04.2006, p. 59-68.

Research output: Contribution to journalArticle

Derksen, J. J. ; Sundaresan, S. ; van den Akker, H. E. A. / Simulation of mass-loading effects in gas-solid cyclone separators. In: Powder Technology. 2006 ; Vol. 163, No. 1-2. pp. 59-68.
@article{6353a7c37351471c8004ed4a20537319,
title = "Simulation of mass-loading effects in gas-solid cyclone separators",
abstract = "Three-dimensional, time-dependent Eulerian-Lagrangian simulations of the turbulent gas-solid flow in a cyclone separator have been performed. The Eulerian description of the gas flow is based on lattice-Boltzmann discretization of the filtered Navier-Stokes equations, where the Smagorinsky subgrid-scale model has been used to represent the effect of the filtered scales. Through this large-eddy representation of the gas flow, solid particles with different sizes are tracked. By viewing the individual particles (of which there are some 10(7) inside the cyclone at any moment in time) as clusters of particles (parcels), we study the effect of particle-to-gas coupling on the gas flow and particle behavior at appreciable mass-loading (0.05 and 0.1). The presence of solid particles causes the cyclone to lose some swirl intensity. Furthermore, the turbulence of the gas flow gets strongly damped. These two effects have significant consequences, for the way the particles of different sizes get dispersed in the gas flow. It is anticipated that the collection efficiency gets affected in opposite senses: negatively by the loss-of-swirl, positively by the reduced turbulence. (C) 2006 Elsevier B.V. All rights reserved.",
keywords = "cyclone separators, mass-loading, turbulence, LES, Euler-Lagrange, computational fluid dynamics, FLOW, PERFORMANCE, PARTICLES",
author = "Derksen, {J. J.} and S. Sundaresan and {van den Akker}, {H. E. A.}",
year = "2006",
month = "4",
day = "25",
doi = "10.1016/j.powtec.2006.01.006",
language = "English",
volume = "163",
pages = "59--68",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier Science",
number = "1-2",

}

TY - JOUR

T1 - Simulation of mass-loading effects in gas-solid cyclone separators

AU - Derksen, J. J.

AU - Sundaresan, S.

AU - van den Akker, H. E. A.

PY - 2006/4/25

Y1 - 2006/4/25

N2 - Three-dimensional, time-dependent Eulerian-Lagrangian simulations of the turbulent gas-solid flow in a cyclone separator have been performed. The Eulerian description of the gas flow is based on lattice-Boltzmann discretization of the filtered Navier-Stokes equations, where the Smagorinsky subgrid-scale model has been used to represent the effect of the filtered scales. Through this large-eddy representation of the gas flow, solid particles with different sizes are tracked. By viewing the individual particles (of which there are some 10(7) inside the cyclone at any moment in time) as clusters of particles (parcels), we study the effect of particle-to-gas coupling on the gas flow and particle behavior at appreciable mass-loading (0.05 and 0.1). The presence of solid particles causes the cyclone to lose some swirl intensity. Furthermore, the turbulence of the gas flow gets strongly damped. These two effects have significant consequences, for the way the particles of different sizes get dispersed in the gas flow. It is anticipated that the collection efficiency gets affected in opposite senses: negatively by the loss-of-swirl, positively by the reduced turbulence. (C) 2006 Elsevier B.V. All rights reserved.

AB - Three-dimensional, time-dependent Eulerian-Lagrangian simulations of the turbulent gas-solid flow in a cyclone separator have been performed. The Eulerian description of the gas flow is based on lattice-Boltzmann discretization of the filtered Navier-Stokes equations, where the Smagorinsky subgrid-scale model has been used to represent the effect of the filtered scales. Through this large-eddy representation of the gas flow, solid particles with different sizes are tracked. By viewing the individual particles (of which there are some 10(7) inside the cyclone at any moment in time) as clusters of particles (parcels), we study the effect of particle-to-gas coupling on the gas flow and particle behavior at appreciable mass-loading (0.05 and 0.1). The presence of solid particles causes the cyclone to lose some swirl intensity. Furthermore, the turbulence of the gas flow gets strongly damped. These two effects have significant consequences, for the way the particles of different sizes get dispersed in the gas flow. It is anticipated that the collection efficiency gets affected in opposite senses: negatively by the loss-of-swirl, positively by the reduced turbulence. (C) 2006 Elsevier B.V. All rights reserved.

KW - cyclone separators

KW - mass-loading

KW - turbulence

KW - LES

KW - Euler-Lagrange

KW - computational fluid dynamics

KW - FLOW

KW - PERFORMANCE

KW - PARTICLES

U2 - 10.1016/j.powtec.2006.01.006

DO - 10.1016/j.powtec.2006.01.006

M3 - Article

VL - 163

SP - 59

EP - 68

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

IS - 1-2

ER -