Heat Transfer Characteristics of a Liquid-Metal Filled Closed Thermosyphon

[+] Author and Article Information
P. F. Pucci

Naval Postgraduate School, Monterey, Calif.

J. C. R. Gerretsen

Technische Hogeschool, Delft, Netherlands

J. Eng. Power 94(3), 202-206 (Jul 01, 1972) (5 pages) doi:10.1115/1.3445673 History: Received December 15, 1971; Online July 14, 2010


Experimentally determined heat transfer characteristics are presented for two geometrically similar, closed thermosyphons. Results using water, mercury, and the sodium-potassium eutectic, NaK 56/44, were obtained for two hot wall boundary conditions, namely, constant wall temperature and uniform heat flux. The water filled thermosyphon data were correlated over a range of td = Grd Pr (d/Lh ) from 5 × 104 to 1.3 × 107 , which agrees with and extends existing data. The liquid-metal filled thermosyphon data were correlated over a range of Grd Pr2 from 3. × 102 to 2. × 105 .

Copyright © 1972 by ASME
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