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The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering
May 13-17, 2007 - Vancouver, Canada
| Editors: |
Franco Berruti, The University of Western Ontario, London, Canada
Xiaotao (Tony) Bi, The University of British Columbia, Vancouver, Canada
Todd Pugsley, University of Saskatchewan, Saskatoon, Saskatchewan, Canada |
The articles for these proceedings are peer-reviewed.
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Radial Distribution of Local Concentration Weighted Particle Velocities in High Density Circulating Fluidized Beds
Gorkem Kirbas, Middle East Technical University
Sung Won Kim, LG Chem Research Park, Daejon, S. Korea
Xiaotao Bi, University of British Columbia
Jim Lim, University of British Columbia
John R. Grace, University of British Columbia
ABSTRACT:
An extensive experimental investigation of radial profiles of concentration -weighted
particle velocities was carried out by simultaneously measuring local transient particle
velocity, solids concentration and solids flux using a three-fibre optical probe at five axial
levels and seven radial locations in a 0.2 m diameter riser operating over a wide range of
solids circulation fluxes (198 to 350 kg/m 2s) and superficial gas velocities (6 to 8 m/s).
Particle velocities averaged over time and concentration-weighted particle velocities were
compared and found to differ from each other, the latter being smaller than the former at
most radial locations. The difference, which results from the correlation between velocity
and voidage fluctuations, was more pronounced for high -density conditions.
Gorkem Kirbas, Sung Won Kim, Xiaotao Bi, Jim Lim, and John R. Grace, "Radial Distribution of Local Concentration Weighted Particle Velocities in High Density Circulating Fluidized Beds" in "The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering", Franco Berruti, The University of Western Ontario, London, Canada
Xiaotao (Tony) Bi, The University of British Columbia, Vancouver, Canada
Todd Pugsley, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Eds, ECI
Symposium Series, Volume RP4 (2007). http://services.bepress.com/eci/fluidization_xii/7
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