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International Heat Transfer Conference 9

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

HEAT TRANSFER AUGMENTATION IN AN ANNULUS WITH INTERRUPTED AXIAL FINS

T. V. V. R. Apparao
Mechanical Engineering Michigan Technological University, Houghton, MI 49931, USA

Ye-di Liu
Mechanical Engineering Michigan Technological University, Houghton, MI 49931, USA

N. V. Suryanarayana
Mechanical Engineering Michigan Technological University, Houghton, MI 49931, USA

DOI: 10.1615/IHTC9.1250
pages 27-32

Résumé

Results of an experimental study to determine the heat transfer augmentation with interrupted, axial fins on the outer surface of the inner pipe in a double pipe heat exchanger are reported. Correlation for friction factor and Nusselt numbers with Reynolds number are presented. In arriving at the correlations, due to the asymmetrical heating, the use of different characteristic lengths for Reynolds number and Nusselt number is explored.

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