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Keywords: gas holdup
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Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2751-2758, August 1–5, 2010
Paper No: FEDSM-ICNMM2010-30220
... Characterizing the hydrodynamics of a fluidized bed is of vital importance to understand the behavior of these multiphase flow systems. Minimum fluidization velocity and gas holdup are two important factors used to understand the hydrodynamics of a fluidized bed. Experimental studies...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1721-1731, August 2–6, 2009
Paper No: FEDSM2009-78041
... beds. This paper describes the calibration methods used to produced CT images of a 15.24 cm diameter fluidized bed, how in-house software used these CTs to calculate gas holdup, and how well multiple CTs of a dynamic fluidized bed produced repeatable results while varying bed material and superficial...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 3, 507-515, July 11–15, 2004
Paper No: HT-FED2004-56222
... at which ly heterogeneous flow is observed is lower when A = %. words: Bubble column; Drift flux; Gas holdup; Gas ibutor; Fiber suspension; Flow regime. MENCLATURE open area, % fiber mass fraction, % orifice diameter, mm column height, m fiber length, mm dry fiber mass, kg total mass of fiber-water mixture...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 3, 497-505, July 11–15, 2004
Paper No: HT-FED2004-56220
... 03 03 2009 Effects of superficial liquid velocity ( U l ), superficial gas velocity ( U g ), and fiber mass fraction ( C ) on gas holdup ( ε ) and flow regime transition are studied experimentally in well-mixed water-cellulose fiber suspensions in a cocurrent bubble column...
Proceedings Papers

Proc. ASME. FEDSM2005, Volume 1: Symposia, Parts A and B, 43-48, June 19–23, 2005
Paper No: FEDSM2005-77043
... 14 10 2008 Three different cellulose fiber types are used to study their effect on gas holdup and flow regime transition in a 10.2 cm semi-batch bubble column. The three natural fiber types include bleached softwood chemical pulp (softwood), bleached hardwood chemical pulp (hardwood...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 1: Symposia, Parts A and B, 1779-1786, July 17–20, 2006
Paper No: FEDSM2006-98011
... 08 09 2008 Gas holdup and superficial liquid velocity in the downcomer and riser are studied for an external loop airlift reactor with an area ratio of 1:16. Two downcomer configurations are investigated consisting of the downcomer open or closed to the atmosphere. Experiments...