The Effect of Interparticle Forces on Fluidization Regimes in the Magnetized Fluidized Beds

Woo-Kul Lee; Goran Jovanovic; Hee Taik Kim

Korean Journal of Chemical Engineering, Vol.16, No.3, 362-370, May, 1999

DOI10.1007/BF02707126 Export Citation

The Effect of Interparticle Forces on Fluidization Regimes in the Magnetized Fluidized Beds

Woo-Kul Lee^†, Goran Jovanovic¹, and Hee Taik Kim²

Biological Engineering, Oregon State University, Corvallis, OR 97331, USA
¹Department of Chemical Engineering, Oregon State University, Corvallis, OR 97331, USA
²Department of Chemical Engineering, Hanyang University, Ansan 425-791, Korea

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This paper investigated the influence of interparticle forces on the quality of fluidization in a magnetically stabilized fluidized bed (MSFB), where we can "artificially" create interparticle forces (F_attr) of any magnitude by applying an external magnetic field to ferromagnetic particles. A theoretical model was proposed which predicts the transition point from a homogeneous to a heterogeneous fluidization as a function of the magnitude of the interparticle force and other physical characteristics of both particles and fluids that are usually observed in fluidization (ρ_p, ρ_f, μ, d_p, ε). The concept of the elastic wave velocity, U_e, and the continuity wave velocity, U_ε, was introduced. In particular, the interparticle force manipulated by an externally applied magnetic field was taken into account in addition to a general consideration of a conventional fluidized bed. Bubbles from in a bed when the continuity wave velocity becomes faster than the elastic wave velocity. The simulation demonstrated the proposed model could predict the transition point of fluidization regime with reasonable accuracy.

Keywords:Fluidization;Elastic and Continuity Wave Velocities;Magnetization of Particles

[References]

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Barrett CR, Tetelman AS, "The Principles of Engineering Materials," Prentice-Hall, N.J. (1973)
Casal J, "Contribucio a lestudi de la fluiditzacio homogenia," Arxius Seccio Ciencies, Institut d'Estudis Catalans, Barcelona, 77 (1984)
Chen CW, "Magnetism and Metallurgy of Soft Magnetic Materials," North-Holland (1977)
Chetty AS, Gabis DH, Burns MA, Powder Technol., 64, 165 (1991)
Ciborowski J, Wlodarski A, Chem. Eng. Sci., 17, 23 (1962)
Cohen AH, Chi T, Powder Technol., 64, 147 (1991)
Cox JD, Clark NN, Powder Technol., 66, 177 (1991)
Donsi G, Massimilla L, AIChE Symp. Ser., 19(6), 1104 (1973)
Donsi G, Moser S, Massimilla L, Chem. Eng. Sci., 30, 1533 (1975)
Filippov MV, Prik. Magnit. Lat. SSR, 12, 215 (1960)
Flemmer RLC, Clark NN, Powder Technol., 50, 77 (1987)
Foscolo PU, Gibilaro LG, Chem. Eng. Sci., 39(12), 1667 (1984)
Foscolo PU, Gibilaro LG, Di Felice R, Waldram SP, Chem. Eng. Sci., 40(12), 2379 (1985)
Geldart D, Abrahamsen AR, Powder Technol., 19, 133 (1978)
Gibilaro LG, Di Felice R, Waldram SP, Foscolo PU, Chem. Eng. Sci., 40(10), 1817 (1985)
Gibilaro LG, Di Felice R, Foscolo PU, Chem. Eng. Sci., 41(9), 2438 (1986)
Griffiths DJ, "Introduction to Electrodynamics," Prentice-Hall, N.J. (1981)
Jaraiz EM, Kimura S, Levenspiel O, Powder Technol., 72, 23 (1992)
Katz H, Sears JT, Can. J. Chem. Eng., 47, 50 (1969)
Kirko IM, Filippv MV, "Standard Correlations for a Fluidized Bed of Ferromagnetic Particles in a Magnetic Field, Report F-21, Section on Physical Modeling," Interinstitutional Scientific Conference on Applied Physics and Mathematical Modeling, Moscow (1959)
Kirko IM, Filippv MV, Zh. Tek. Fiz., 30, 1081 (1960)
Massey BS, "Mechanics of Fluids," 4th ed., Van Nostrand Reinhold, London (1979)
Massimilla L, Donsi G, Powder Technol., 15, 253 (1976)
Molerus O, Powder Technol., 33, 81 (1982)
Overbeek JG, Powder Technol., 37, 195 (1984)
Richardson JF, Zaki WN, Trans. Inst. Chem. Eng., 32, 35 (1954)
Rietema K, Chem. Eng. Sci., 28, 1493 (1973)
Rietema K, Piepers HW, Chem. Eng. Sci., 45(6), 1627 (1990)
Rosensweig RE, Science, 206, 57 (1979)
Rosensweig RE, Ind. Eng. Chem. Fundam., 18(3), 260 (1979)
Rowe PN, Chem. Eng. Sci., 42, 2795 (1987)
Saxena SC, Shrivastava S, Powder Technol., 64, 57 (1991)
Saxena SC, Shrivastava S, Powder Technol., 45(4), 1125 (1990)
Seville JPK, Clift R, Powder Technol., 37, 117 (1984)
Siegell JH, Powder Technol., 52, 139 (1987)
Siegell JH, Powder Technol., 55, 127 (1988)
Siegell JH, Ind. Eng. Chem. Process Des. Dev., 21, 135 (1982)
Slis PL, Willemse W, Kramers H, Appl. Sci. Res., A8, 209 (1959)
Stanley VM, Gabriel GS, "Electromagnetic Concepts and Application," Prentice-Hall, N.J. (1982)
Verloop J, Heertjes PM, Chem. Eng. Sci., 25, 825 (1970)
Wallis GB, "One-Dimensional Two-Phase Flow," McGraw-Hill, New York (1969)
Zenz FA, Othmer DF, "Fluidization and Fluid-Particle Systems," Reinhold (1960)

[Related Articles]

[1] Baerns M, Ind. Eng. Chem. Fundam., 5(4), 508 (1966)

[2] Barrett CR, Tetelman AS, "The Principles of Engineering Materials," Prentice-Hall, N.J. (1973)

[3] Casal J, "Contribucio a lestudi de la fluiditzacio homogenia," Arxius Seccio Ciencies, Institut d'Estudis Catalans, Barcelona, 77 (1984)

[4] Chen CW, "Magnetism and Metallurgy of Soft Magnetic Materials," North-Holland (1977)

[5] Chetty AS, Gabis DH, Burns MA, Powder Technol., 64, 165 (1991)

[6] Ciborowski J, Wlodarski A, Chem. Eng. Sci., 17, 23 (1962)

[7] Cohen AH, Chi T, Powder Technol., 64, 147 (1991)

[8] Cox JD, Clark NN, Powder Technol., 66, 177 (1991)

[9] Donsi G, Massimilla L, AIChE Symp. Ser., 19(6), 1104 (1973)

[10] Donsi G, Moser S, Massimilla L, Chem. Eng. Sci., 30, 1533 (1975)

[11] Filippov MV, Prik. Magnit. Lat. SSR, 12, 215 (1960)

[12] Flemmer RLC, Clark NN, Powder Technol., 50, 77 (1987)

[13] Foscolo PU, Gibilaro LG, Chem. Eng. Sci., 39(12), 1667 (1984)

[14] Foscolo PU, Gibilaro LG, Di Felice R, Waldram SP, Chem. Eng. Sci., 40(12), 2379 (1985)

[15] Geldart D, Abrahamsen AR, Powder Technol., 19, 133 (1978)

[16] Gibilaro LG, Di Felice R, Waldram SP, Foscolo PU, Chem. Eng. Sci., 40(10), 1817 (1985)

[17] Gibilaro LG, Di Felice R, Foscolo PU, Chem. Eng. Sci., 41(9), 2438 (1986)

[18] Griffiths DJ, "Introduction to Electrodynamics," Prentice-Hall, N.J. (1981)

[19] Jaraiz EM, Kimura S, Levenspiel O, Powder Technol., 72, 23 (1992)

[20] Katz H, Sears JT, Can. J. Chem. Eng., 47, 50 (1969)

[21] Kirko IM, Filippv MV, "Standard Correlations for a Fluidized Bed of Ferromagnetic Particles in a Magnetic Field, Report F-21, Section on Physical Modeling," Interinstitutional Scientific Conference on Applied Physics and Mathematical Modeling, Moscow (1959)

[22] Kirko IM, Filippv MV, Zh. Tek. Fiz., 30, 1081 (1960)

[23] Massey BS, "Mechanics of Fluids," 4th ed., Van Nostrand Reinhold, London (1979)

[24] Massimilla L, Donsi G, Powder Technol., 15, 253 (1976)

[25] Molerus O, Powder Technol., 33, 81 (1982)

[26] Overbeek JG, Powder Technol., 37, 195 (1984)

[27] Richardson JF, Zaki WN, Trans. Inst. Chem. Eng., 32, 35 (1954)

[28] Rietema K, Chem. Eng. Sci., 28, 1493 (1973)

[29] Rietema K, Piepers HW, Chem. Eng. Sci., 45(6), 1627 (1990)

[30] Rosensweig RE, Science, 206, 57 (1979)

[31] Rosensweig RE, Ind. Eng. Chem. Fundam., 18(3), 260 (1979)

[32] Rowe PN, Chem. Eng. Sci., 42, 2795 (1987)

[33] Saxena SC, Shrivastava S, Powder Technol., 64, 57 (1991)

[34] Saxena SC, Shrivastava S, Powder Technol., 45(4), 1125 (1990)

[35] Seville JPK, Clift R, Powder Technol., 37, 117 (1984)

[36] Siegell JH, Powder Technol., 52, 139 (1987)

[37] Siegell JH, Powder Technol., 55, 127 (1988)

[38] Siegell JH, Ind. Eng. Chem. Process Des. Dev., 21, 135 (1982)

[39] Slis PL, Willemse W, Kramers H, Appl. Sci. Res., A8, 209 (1959)

[40] Stanley VM, Gabriel GS, "Electromagnetic Concepts and Application," Prentice-Hall, N.J. (1982)

[41] Verloop J, Heertjes PM, Chem. Eng. Sci., 25, 825 (1970)

[42] Wallis GB, "One-Dimensional Two-Phase Flow," McGraw-Hill, New York (1969)

[43] Zenz FA, Othmer DF, "Fluidization and Fluid-Particle Systems," Reinhold (1960)