Abstract
A circulating fluidized bed (CFB) is widely applied in many industries because it has high efficiency. To develop and improve the process, an understanding of the hydrodynamics inside the CFB is very important. Computational fluid dynamics (CFD) represents a powerful tool for helping to understand the phenomena involved in the process. In this study, a CFD model was developed to represent a cold model of the laboratory scale CFB which was designed to study the hydrodynamics of a CFB using commercial CFD software. The Eulerian approach with kinetic theory of granular flow was used for simulating the hydrodynamics inside the system. After proper tuning of relevant parameters, the pressure profile along the equipment from the simulation was well agreed with that from the experiment. The simulation result expresses the hydrodynamic parameters of the slug flow such as solid volume fraction, gas and solid velocities and granular temperature in the riser.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. Kunii and O. Levenspiel, Fluidization engineering, Butterworth-Heinemann, New York (1991).
J. R. Grace, A. A. Avidan and T. M. Knowlton, Circulating fluidized beds, Blackie Academic & Professional, London (1997).
D. Geldart, Powder Technol., 7, 285 (1973).
P. Lettieri, G. Saccone and L. Cammarata, Chem. Eng. Res. Des., 82, 939 (2004).
J. Baeyens and D. Geldart, Chem. Eng. Sci., 29, 255 (1974).
C. G. J. Baker and D. Geldart, Powder Technol., 19, 177 (1978).
L. De Luca, R. Di Felice, P. U. Foscolo and P. P. Boattini, Powder Technol., 69, 171 (1992).
D. Gidaspow, Multiphase flow and fluidization: Continuum and kinetic theory description, Academic Press, Boston (1994).
Fluent Inc., Fluent 6.2.16 User’s Guide, Fluent Inc., Lebanon (2003).
L. C. Gomez and F. E. Milioli, Powder Technol., 132, 216 (2003).
M. L. Mastellone and U. Arena, Chem. Eng. Sci., 54, 5383 (1999).
P. D. Noymer, M. R. Hyre and L. R. Glicksman, Int. J. Heat Mass Transfer, 43, 3641 (2000).
X. Wang, B. Jin and W. Zhong, Chem. Eng. Process., 48, 695 (2009).
J. D. Wilde, G. B. Marin and G. J. Heynderickx, Chem. Eng. Sci., 58, 877 (2003).
P. C. Johnson and R. Jackson, J. Fluid Mech., 176, 67 (1987).
E. Cruz, F. R. Steward and T. Pugsley, Powder Technol., 169, 115 (2006).
B. Chalermsinsuwan, P. Kuchonthara and P. Piumsomboon, Chem. Eng. Process., 48, 165 (2009).
B. Chalermsinsuwan, P. Piumsomboon and D. Gidaspow, Chem. Eng. Sci., 64, 1195 (2009).
R. Clift and J. R. Grace, in Fluidization II, J. F. Davidson, R. Clift and D. Harrison Eds., Academic Press, London (1985).
S. H. Lee, D. H. Lee and S. D. Kim, Korean J. Chem. Eng., 19(2), 351 (2002).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Amornsirirat, C., Chalermsinsuwan, B., Mekasut, L. et al. Experiment and 3D simulation of slugging regime in a circulating fluidized bed. Korean J. Chem. Eng. 28, 686–696 (2011). https://doi.org/10.1007/s11814-010-0407-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-010-0407-0