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TECHNICAL PAPERS: Porous Media, Particles, and Droplets

The Effect of Magnetic Field on Local Heat Transfer Coefficient in Fluidized Beds With Immersed Heating Surface

[+] Author and Article Information
Z. Al-Qodah

Department of Chemical Engineering, Amman College for Engineering Technology, Al-Balqa’ Applied University, P.O. Box 340558, Marka, Amman, Jordane-mail: zalqodah@hotmail.com

M. Al-Busoul

Department of Mechanical Engineering, Amman College for Engineering Technology, Al-Balqa’ Applied University, P.O. Box 340558, Marka, Amman, Jordan

J. Heat Transfer 123(1), 157-161 (Jul 12, 2000) (5 pages) doi:10.1115/1.1336506 History: Received October 21, 1999; Revised July 12, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematic of the experimental setup: (1) Gas entrance; (2) Polyethylene particles; (3) Flanges; (4) Supporting grid; (5) Heater; (6) Magnetic particles; (7) Magnetic system; (8) column; (9) Manometer; (10) Orifice; (11) Gas suction; (12) Details of the magnetic sheets; and (13) Details of the heater
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Effect of Reynolds number on the bed gas holdup for various magnetic field intensities
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Temperature profiles in the bed at constant magnetic field intensity and different Reynolds numbers (B=20 mT, heater height=0.12 m)
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The effect of Reynolds number on Nusselt number at various magnetic field intensities (Re=65.5, heater height=0.12 m,B=15 mT)
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Effect of the magnetic field intensity on the radial profiles of Nusselt number (Re=52,dp=0.52 mm, heater height=0.12 m)
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Effect of heater height on the radial profiles of Nusselt number (Re=52,dp=0.74 mm, initial bed height=0.13 m)
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Effect of particles diameter on Nuselt number at five different radial positions (heater height=0.12 m)
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Variation of Nusselt number with magnetic field intensity at various Reynolds numbers (heater height=0.12 m)
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Effect of particle diameter on the radial profiles of the heat transfer coefficient (Re=56, heater height=0.12 m)

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