The critical heat flux (CHF) on a single tube in a horizontal bundle subject to an upward crossflow of R113 has been studied in three bundle geometries. Effects of local quality, mass flux, pressure, and bundle geometry on the CHF were investigated. The shapes of the CHF-quality curves display three distinct patterns, which progress from one to another as mass flux increases. At low mass fluxes, the CHF data monotonically decreased with increasing quality. At intermediate mass fluxes with increasing quality, the CHF data initially decreased to a relative minimum, then increased to a relative maximum, and finally began to decrease again as the higher qualities were reached. At high mass fluxes, as quality increased, the CHF rose gradually from the zero quality value to a maximum and then began to decrease. For all mass fluxes, the zero-quality CHF points clustered around an average value, which varied slightly with test section geometry. Mechanisms for the CHF condition are suggested.
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Critical Heat Flux in Horizontal Tube Bundles in Vertical Crossflow of R113
K. M. Leroux,
K. M. Leroux
Department of Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
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M. K. Jensen
M. K. Jensen
Department of Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
Search for other works by this author on:
K. M. Leroux
Department of Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
M. K. Jensen
Department of Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
J. Heat Transfer. Feb 1992, 114(1): 179-184 (6 pages)
Published Online: February 1, 1992
Article history
Received:
January 31, 1991
Revised:
May 23, 1991
Online:
May 23, 2008
Citation
Leroux, K. M., and Jensen, M. K. (February 1, 1992). "Critical Heat Flux in Horizontal Tube Bundles in Vertical Crossflow of R113." ASME. J. Heat Transfer. February 1992; 114(1): 179–184. https://doi.org/10.1115/1.2911244
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