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.

References

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
.
You do not currently have access to this content.