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RESEARCH PAPERS: Forced Convection

The Effect of Support Grid Design on Azimuthal Variation in Heat Transfer Coefficient for Rod Bundles

[+] Author and Article Information
Mary V. Holloway, Timothy A. Conover, Heather L. McClusky, Donald E. Beasley

Department of Mechanical Engineering, Clemson University, Clemson, SC 29634

Michael E. Conner

Westinghouse Nuclear Fuel, 5801 Bluff Rd., Columbia, SC 29250

J. Heat Transfer 127(6), 598-605 (Jun 06, 2005) (8 pages) doi:10.1115/1.1863274 History: Received January 06, 2004; Revised December 16, 2004; Online June 06, 2005
Copyright © 2005 by ASME
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References

Figures

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(a) Schematic diagram of 5×5 rod bundle assembly (b) Details of subchannel with split-vane pair
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Representative drawings of support grid designs for (a) standard grid, (b) disc grid, and (c) split-vane pair grid.
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Drawing of experimental facility
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Drawing of thin film azimuthal heat transfer sensor (Dimensions in mm)
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Photograph of thin film azimuthal heat transfer sensor
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Details of instrumented rod location
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Azimuthal variations in Nusselt number comparison with Kidd et al. 2
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Azimuthal variations in Nusselt number for standard grid
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Azimuthal variations in Nusselt number for disc grid
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Lateral velocity and axial vorticity downstream of split-vane pair grid 17 for (a) 2.8 Dh and (b) 6.3 Dh
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Azimuthal variations in Nusselt number for split-vane pair grid
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Azimuthal variations in Nusselt number for 2.2 Dh
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Azimuthal variations in Nusselt number for 36.7 Dh
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(Color) Contour plots of temperature difference (T−Tb) at Re=28,000 for (a) standard grid, (b) disc grid, and (c) split-vane pair grid
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(Color) Temperature distribution for split-vane pair grid obtained from CFD 22

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