A study was conducted to explore the effects of static bed height, nozzle diameter, cone angle, and particle properties on the minimum spouting velocity in a 4 in × 1 in rectangular spouted bed. Tests were conducted with various solids materials (including 871 μm HPDE pellets, 3.2 mm nylon beads, 707 μm glass beads, and 1.5 mm alumina spheres), two gas inlet nozzle diameters, and two cone angles. Experimentally obtained minimum spouting velocities were compared to existing published correlations developed for cylindrical spouted beds. In each case, it was determined that the existing correlations did not adequately predict the minimum spouting velocity for a rectangular spouted bed. A new correlation is proposed.
Issue Section:
Energy Systems Analysis
References
1.
Wang
, A. L. T.
, Stubington
, J. F.
, and Xu
, J.
, 2006
, “Hydrodynamic Performance of a Novel Design of Pressurized Fluidized Bed Combustor
,” ASME J. Energy Resour. Technol.
, 128
(2
), pp. 111
–117
.2.
Lu
, X.
, and Amano
, R. S.
, 2004
, “The Combusting Properties of Anthracide in a 410 t/h CFB Boiler
,” ASME J. Energy Resour. Technol.
, 126
(3
), pp. 226
–230
.3.
Mei
, J.
, Monazam
, E. R.
, and Shadle
, L. J.
, 2006
, “Flow Regime Study of a Light Material in an Industrial Scale Cold Flow Circulating Fluidized Bed
,” ASME J. Energy Resour. Technol.
, 128
(2
), pp. 129
–134
.4.
Fan
, L.-S.
, and Zhu
, C.
, 1998
, Principles of Gas-Solid Flows
, Cambridge University Press
, Cambridge, UK
.5.
Geldart
, D.
, Harnby
, N.
, and Wong
, A. C.
, 1984
, “Fluidization of Cohesive Particles
,” Powder Technol.
, 37
(1
), pp. 25
–37
.6.
Mathur
, K. B.
, and Gishler
, P. E.
, 1955
, “A Technique for Contacting Gases With Coarse Solid Particles
,” AIChE. J.
, 1
(2
), pp. 157
–164
.7.
Smith
, J. W.
, and Reddy
, K. V. S.
, 1964
, “Spouting of Mixed Particle-Size Beds
,” Can. J. Chem. Eng.
, 42
(5
), pp. 206
–210
.8.
Brunello
, G.
, Nina
, G. D.
, Nunes
, F. C. S.
, and Nascimento
, C. A. O.
, 1974
, “Minimum Air Requirements for Spouting Mixed Particles
,” Can. J. Chem. Eng.
, 52
(2
), pp. 170
–173
.9.
Markowski
, A.
, and Kaminski
, W.
, 1983
, “Hydrodynamic Characteristics of Jet Spouted Beds
,” Can. J. Chem. Eng.
, 61
(3
), pp. 377
–381
.10.
Choi
, M.
, and Maisen
, A.
, 1992
, “Hydrodynamics of Shallow, Conical Spouted Beds
,” Can. J. Chem. Eng.
, 70
(5
), pp. 916
–924
.11.
Mkiec
, A.
, 1983
, “The Minimum Spouting Velocity in Conical Beds
,” Can. J. Chem. Eng.
, 61
(3), pp. 274
–280
.12.
Bi
, H. T.
, Macchi
, A.
, Chauki
, J.
, and Legros
, R.
, 1997
, “Minimum Spouting Velocity of Conical Spouted Beds
,” Can. J. Chem. Eng.
, 75
(2
), pp. 460
–465
.13.
Epstein
, N.
, and Grace
, J. R.
, 2011
, Spouted and Spout-Fluid Beds
, Cambridge University Press
, Cambridge, UK
.14.
Dogan
, O. M.
, Frietas
, A.
, Lim
, C. J.
, Grace
, J. R.
, and Juo
, B.
, 2000
, “Hydrodynamics and Stability of Slot-Rectangular Spouted Beds—Part 1: Thin Bed
,” Chem. Eng. Commun.
, 181
, pp. 225
–242
.15.
Mujumdar
, A. S.
, 1984
, “Spouted Bed Technology—A Brief Review
,” Drying '84
, Hemisphere McGraw-Hill
, New York
.16.
Anabtawi
, M. Z.
, 1998
, “Minimum Spouting Velocity for Binary Mixtures of Particles in Rectangular Spouted Beds
,” Can. J. Chem. Eng.
, 76
(1
), pp. 132
–136
.Copyright © 2018 by ASME
You do not currently have access to this content.
