Nonintrusive measurements of the internal heat transfer coefficient in the core of a randomly packed bed of uniform spherical particles are made. Under steady, fully-developed flow the spherical particles are subjected to a step-change in volumetric heat generation rate via induction heating. The fluid temperature response is measured. The internal heat transfer coefficient is determined by comparing the results of a numerical simulation based on volume averaging theory (VAT) with the experimental results. The only information needed is the basic material and geometric properties, the flow rate, and the fluid temperature response data. The computational procedure alleviates the need for solid and fluid phase temperature measurements within the porous medium. The internal heat transfer coefficient is determined in the core of a packed bed, and expressed in terms of the Nusselt number, over a Reynolds number range of 20 to 500. The Nusselt number and Reynolds number are based on the VAT scale hydraulic diameter, . The results compare favorably to those of other researchers and are seen to be independent of particle diameter. The success of this method, in determining the internal heat transfer coefficient in the core of a randomly packed bed of uniform spheres, suggests that it can be used to determine the internal heat transfer coefficient in other porous media.
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Research Papers
Internal Heat Transfer Coefficient Determination in a Packed Bed From the Transient Response Due to Solid Phase Induction Heating
David Geb,
David Geb
Morrin-Gier-Martinelli Heat Transfer Memorial Laboratory, Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science,
e-mail: dvdgb15@ucla.edu
University of California
, Los Angeles, 48-121 Engineering IV, 420 Westwood Plaza, Los Angeles, CA 90095-1597
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Feng Zhou,
Feng Zhou
Morrin-Gier-Martinelli Heat Transfer Memorial Laboratory, Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science,
University of California
, Los Angeles, 48-121 Engineering IV, 420 Westwood Plaza, Los Angeles, CA 90095-1597
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Ivan Catton
Ivan Catton
Morrin-Gier-Martinelli Heat Transfer Memorial Laboratory, Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science,
University of California
, Los Angeles, 48-121 Engineering IV, 420 Westwood Plaza, Los Angeles, CA 90095-1597
Search for other works by this author on:
David Geb
Morrin-Gier-Martinelli Heat Transfer Memorial Laboratory, Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science,
University of California
, Los Angeles, 48-121 Engineering IV, 420 Westwood Plaza, Los Angeles, CA 90095-1597e-mail: dvdgb15@ucla.edu
Feng Zhou
Morrin-Gier-Martinelli Heat Transfer Memorial Laboratory, Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science,
University of California
, Los Angeles, 48-121 Engineering IV, 420 Westwood Plaza, Los Angeles, CA 90095-1597
Ivan Catton
Morrin-Gier-Martinelli Heat Transfer Memorial Laboratory, Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science,
University of California
, Los Angeles, 48-121 Engineering IV, 420 Westwood Plaza, Los Angeles, CA 90095-1597J. Heat Transfer. Apr 2012, 134(4): 042604 (10 pages)
Published Online: February 15, 2012
Article history
Received:
December 10, 2010
Revised:
September 4, 2011
Online:
February 15, 2012
Published:
February 15, 2012
Citation
Geb, D., Zhou, F., and Catton, I. (February 15, 2012). "Internal Heat Transfer Coefficient Determination in a Packed Bed From the Transient Response Due to Solid Phase Induction Heating." ASME. J. Heat Transfer. April 2012; 134(4): 042604. https://doi.org/10.1115/1.4005098
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