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Research Papers: Energy Systems Analysis

Estimation of Minimum Spouting Velocity in a Rectangular Spouted Bed

[+] Author and Article Information
Steven L. Rowan

Oak Ridge Institute for Science and Education,
Oak Ridge, TN 37830;
National Energy Technology Laboratory,
B-26 Room 369, Mailstop A07,
3610 Collins Ferry Road,
Morgantown, WV 26507
e-mail: steven.rowan@netl.doe.gov

Jingsi Yang

Oak Ridge Institute for Science and Education,
Oak Ridge, TN 37830;
National Energy Technology Laboratory,
B-26 Room 220, Mailstop D06,
3610 Collins Ferry Road,
Morgantown, WV 26507
e-mail: jingsi.yang@netl.doe.gov

Michael C. Bobek

Oak Ridge Institute for Science and Education,
Oak Ridge, TN 37830;
National Energy Technology Laboratory,
B-26 Room 223, Mailstop D06,
3610 Collins Ferry Road,
Morgantown, WV 26507
e-mail: michael.bobek@netl.doe.gov

Ronald W. Breault

National Energy Technology Laboratory,
B-26 Room 333, Mailstop E02,
3610 Collins Ferry Road,
Morgantown, WV 26507
e-mail: ronald.breault@netl.doe.gov

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received August 14, 2017; final manuscript received March 9, 2018; published online April 13, 2018. Editor: Hameed Metghalchi.

J. Energy Resour. Technol 140(6), 062004 (Apr 13, 2018) (5 pages) Paper No: JERT-17-1433; doi: 10.1115/1.4039739 History: Received August 14, 2017; Revised March 09, 2018

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.

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References

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. [CrossRef]
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. [CrossRef]
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. [CrossRef]
Fan, L.-S. , and Zhu, C. , 1998, Principles of Gas-Solid Flows, Cambridge University Press, Cambridge, UK. [CrossRef]
Geldart, D. , Harnby, N. , and Wong, A. C. , 1984, “ Fluidization of Cohesive Particles,” Powder Technol., 37(1), pp. 25–37. [CrossRef]
Mathur, K. B. , and Gishler, P. E. , 1955, “ A Technique for Contacting Gases With Coarse Solid Particles,” AIChE. J., 1(2), pp. 157–164. [CrossRef]
Smith, J. W. , and Reddy, K. V. S. , 1964, “ Spouting of Mixed Particle-Size Beds,” Can. J. Chem. Eng., 42(5), pp. 206–210. [CrossRef]
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. [CrossRef]
Markowski, A. , and Kaminski, W. , 1983, “ Hydrodynamic Characteristics of Jet Spouted Beds,” Can. J. Chem. Eng., 61(3), pp. 377–381. [CrossRef]
Choi, M. , and Maisen, A. , 1992, “ Hydrodynamics of Shallow, Conical Spouted Beds,” Can. J. Chem. Eng., 70(5), pp. 916–924. [CrossRef]
Mkiec, A. , 1983, “ The Minimum Spouting Velocity in Conical Beds,” Can. J. Chem. Eng., 61(3), pp. 274–280. [CrossRef]
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. [CrossRef]
Epstein, N. , and Grace, J. R. , 2011, Spouted and Spout-Fluid Beds, Cambridge University Press, Cambridge, UK.
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. [CrossRef]
Mujumdar, A. S. , 1984, “ Spouted Bed Technology—A Brief Review,” Drying '84, Hemisphere McGraw-Hill, New York.
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. [CrossRef]

Figures

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Fig. 1

Conceptual diagram of a spouted bed

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Fig. 2

(a) Process and instrumentation diagram and (b) cold flow spouted bed unit

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Fig. 3

Comparison of nozzle size effects on Ums values as a function of static bead height for: (a) nylon beads, (b) glass beads, and (c) alumina spheres

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Fig. 4

Comparison of experimental data to predicted Ums values from Eqs. (1)(3) for HDPE cases when (a) dc = rectangular bed width and (b) dc = hydraulic diameter

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Fig. 5

Comparison of experimental data to predicted Ums values from Eqs. (1)(3) for nylon beads cases when (a) dc = rectangular bed width and (b) dc = hydraulic diameter

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Fig. 6

Comparison of experimental data to predicted Ums values from Eq. (4) for nylon beads cases

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Fig. 7

Comparison of experimental data to predicted Ums values from Eq. (6)

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