Hydrothermal Behavior of G-S Magnetically Stabilized Beds Consisting of Magnetic and Non-Magnetic Admixtures
The hydrothermal behavior of a bed consisting of
magnetic and shale oil particle admixtures under the effect of a
transverse magnetic field is investigated. The phase diagram, bed
void fraction are studied under wide range of the operating
conditions i.e., gas velocity, magnetic field intensity and fraction of
the magnetic particles. It is found that the range of the stabilized
regime is reduced as the magnetic fraction decreases. In addition, the
bed voidage at the onset of fluidization decreases as the magnetic
fraction decreases. On the other hand, Nusselt number and
consequently the heat transfer coefficient is found to increase as the
magnetic fraction decreases. An empirical equation is investigated to
relate the effect of the gas velocity, magnetic field intensity and
fraction of the magnetic particles on the heat transfer behavior in the
bed.
[1] Z. Al-Qodah "Hydrodynamic behavior of magneto air-lift column in a
transverse magnetic field," Can J. Chem. Eng. Vol. 78, pp. 458-467,
2000.
[2] M. Holger "Heat transfer between gas fluidized beds of solids particles
and the surfaces of immersed heat exchanger elements: Part I," Chem.
Eng. Process, Vol. 18, pp. 157-198, 1984.
[3] J. C. Perkle, P. A. Ruziska, L. J. Shulik "Circulating magnetically
stabilized bed reactors," Chem. Eng. Commun. Vol. 67, pp. 89-109,
1988.
[4] M. V. Filippov "The Effect of a Magnetic Field on a Ferromagnetic
Particle Suspension Bed," Prik. Magnet Latv. SSR, Vol. 12, pp. 215-
220, 1960.
[5] Y. A. Liu, R. K. Hamby, R. D. Colberg "Fundamental and Practical
Developments of Magneto Fluidized Beds: a Review," Powder Technol.
Vol. 64, pp. 3-11, 1991.
[6] Z. Al-Qodah, M. Al-Busoul, M. Al-Hassan "Hydro-thermal behavior of
magnetically stabilized fluidized beds," Powder Technology Vol. 115,
pp. 58-67, 2001.
[7] H. Holopainen (1991) "Experience of oil shale combustion in ahlistorm
pyrofow CFB-boiler, Oil Shale 8: 194- 205, 1991.
[8] R. E. Rosensweig "Fluidization: hydrodynamic stabilization with a
magnetic field," Science, Vol. 204, pp. 57-59, 1979.
[9] P. X. Thivel, Y. P Gontier Boldo, A. Berns "Magnetically stabilized
fluidization of a mixture of magnetic and non-magnetic particles in a
transverse magnetic field," Powder Technology, Vol. 139, pp. 52-257,
2004.
[10] J. Arnaldos, J. Casal, A. Lucas, L. Puigjaner "Magnetically stabilized
fluidization: modeling and application to mixtures," Powder
Technology, Vol. 44, pp. 57-62, 1985.
[11] W. Y Wu, K. L. Smith, S. C. Saxena "Rheology of a magnetically
stabilized bed consisting of mixtures of magnetic and non-magnetic
particles," Powder Technology, Vol. 91, pp. 181-187, 1979.
[12] W. Y. Wu, A. Navada, S. C. Saxena :Hydrodynamic characteristics of a
magnetically stabilized air fluidized bed of an admixture of magnetic
and non-magnetic particles," Powder Technology, Vol. 90, pp. 39-46,
1997.
[13] J. Arnaldos, L. Puigjaner, J. Casal "Heat and mass transfer in
magnetically stabilized fluidized beds" In: K. Ostergaard and A.
Sorensen, Editors, Proceedings of Fifth Engineering Foundation
Conference on fluidization, Fluidization V , eds K. Ostergaard and A.
Sorensen pp. 425-432, 1989.
[14] V. L. Ganzha, S. C. Saxena "Heat-transfer characteristics of magneto
fluidized beds of pure and admixtures of magnetic and nonmagnetic
particles," Int. J. Heat Mass Transfer, Vol. 41, pp. 209-218, 1998.
[15] Z. Al-Qodah, M. Al-Busoul "The effect of magnetic field on local heat
transfer coefficient in fluidized beds with immersed heating surface,"
Journal of Heat Transfer (ASME), Vol. 123, pp. 157-161, 2001.
[16] Z. Al-Qodah, V. Evanova, E. Dobreva, I. Penchev, J. Hristov, R. Petrov
"Non-porous Magnetic Support for Cell Immobilization," J. Fer. Bioeng.
Vol. 71, pp. 114-117, 1991.
[17] J. S. M. Botterill Fluidized Bed Heat Transfer, Academic Press, New
York, 1975.
[18] V. A. Girenko, J. Y. Hristov 2nd South-East European Symposium on
FBC, in: S. Okada (Ed.), Yugoslav Society of Heat Transfer Engineers,
Arandjelovac, Yugoslavia, p. 429, 1999.
[19] Z. Al-Qodah, M. Al-Hassan "Phase holdup and gas-to-liquid mass
transfer coefficient in magneto stabilized G-L-S airlift fermenter,"
Chemical Engineering Journal, vol. Vol. 79, pp. 41-52, 2000.
[1] Z. Al-Qodah "Hydrodynamic behavior of magneto air-lift column in a
transverse magnetic field," Can J. Chem. Eng. Vol. 78, pp. 458-467,
2000.
[2] M. Holger "Heat transfer between gas fluidized beds of solids particles
and the surfaces of immersed heat exchanger elements: Part I," Chem.
Eng. Process, Vol. 18, pp. 157-198, 1984.
[3] J. C. Perkle, P. A. Ruziska, L. J. Shulik "Circulating magnetically
stabilized bed reactors," Chem. Eng. Commun. Vol. 67, pp. 89-109,
1988.
[4] M. V. Filippov "The Effect of a Magnetic Field on a Ferromagnetic
Particle Suspension Bed," Prik. Magnet Latv. SSR, Vol. 12, pp. 215-
220, 1960.
[5] Y. A. Liu, R. K. Hamby, R. D. Colberg "Fundamental and Practical
Developments of Magneto Fluidized Beds: a Review," Powder Technol.
Vol. 64, pp. 3-11, 1991.
[6] Z. Al-Qodah, M. Al-Busoul, M. Al-Hassan "Hydro-thermal behavior of
magnetically stabilized fluidized beds," Powder Technology Vol. 115,
pp. 58-67, 2001.
[7] H. Holopainen (1991) "Experience of oil shale combustion in ahlistorm
pyrofow CFB-boiler, Oil Shale 8: 194- 205, 1991.
[8] R. E. Rosensweig "Fluidization: hydrodynamic stabilization with a
magnetic field," Science, Vol. 204, pp. 57-59, 1979.
[9] P. X. Thivel, Y. P Gontier Boldo, A. Berns "Magnetically stabilized
fluidization of a mixture of magnetic and non-magnetic particles in a
transverse magnetic field," Powder Technology, Vol. 139, pp. 52-257,
2004.
[10] J. Arnaldos, J. Casal, A. Lucas, L. Puigjaner "Magnetically stabilized
fluidization: modeling and application to mixtures," Powder
Technology, Vol. 44, pp. 57-62, 1985.
[11] W. Y Wu, K. L. Smith, S. C. Saxena "Rheology of a magnetically
stabilized bed consisting of mixtures of magnetic and non-magnetic
particles," Powder Technology, Vol. 91, pp. 181-187, 1979.
[12] W. Y. Wu, A. Navada, S. C. Saxena :Hydrodynamic characteristics of a
magnetically stabilized air fluidized bed of an admixture of magnetic
and non-magnetic particles," Powder Technology, Vol. 90, pp. 39-46,
1997.
[13] J. Arnaldos, L. Puigjaner, J. Casal "Heat and mass transfer in
magnetically stabilized fluidized beds" In: K. Ostergaard and A.
Sorensen, Editors, Proceedings of Fifth Engineering Foundation
Conference on fluidization, Fluidization V , eds K. Ostergaard and A.
Sorensen pp. 425-432, 1989.
[14] V. L. Ganzha, S. C. Saxena "Heat-transfer characteristics of magneto
fluidized beds of pure and admixtures of magnetic and nonmagnetic
particles," Int. J. Heat Mass Transfer, Vol. 41, pp. 209-218, 1998.
[15] Z. Al-Qodah, M. Al-Busoul "The effect of magnetic field on local heat
transfer coefficient in fluidized beds with immersed heating surface,"
Journal of Heat Transfer (ASME), Vol. 123, pp. 157-161, 2001.
[16] Z. Al-Qodah, V. Evanova, E. Dobreva, I. Penchev, J. Hristov, R. Petrov
"Non-porous Magnetic Support for Cell Immobilization," J. Fer. Bioeng.
Vol. 71, pp. 114-117, 1991.
[17] J. S. M. Botterill Fluidized Bed Heat Transfer, Academic Press, New
York, 1975.
[18] V. A. Girenko, J. Y. Hristov 2nd South-East European Symposium on
FBC, in: S. Okada (Ed.), Yugoslav Society of Heat Transfer Engineers,
Arandjelovac, Yugoslavia, p. 429, 1999.
[19] Z. Al-Qodah, M. Al-Hassan "Phase holdup and gas-to-liquid mass
transfer coefficient in magneto stabilized G-L-S airlift fermenter,"
Chemical Engineering Journal, vol. Vol. 79, pp. 41-52, 2000.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:63847", author = "Z. Al-Qodah and M. Al-Busoul and A. Khraewish", title = "Hydrothermal Behavior of G-S Magnetically Stabilized Beds Consisting of Magnetic and Non-Magnetic Admixtures", abstract = "The hydrothermal behavior of a bed consisting of
magnetic and shale oil particle admixtures under the effect of a
transverse magnetic field is investigated. The phase diagram, bed
void fraction are studied under wide range of the operating
conditions i.e., gas velocity, magnetic field intensity and fraction of
the magnetic particles. It is found that the range of the stabilized
regime is reduced as the magnetic fraction decreases. In addition, the
bed voidage at the onset of fluidization decreases as the magnetic
fraction decreases. On the other hand, Nusselt number and
consequently the heat transfer coefficient is found to increase as the
magnetic fraction decreases. An empirical equation is investigated to
relate the effect of the gas velocity, magnetic field intensity and
fraction of the magnetic particles on the heat transfer behavior in the
bed.", keywords = "Magnetic stabilization; Magnetic stabilized fluidizedbeds; Gas-fluidized beds.", volume = "1", number = "10", pages = "586-6", }
