Effects of Surface Conditions on Nucleate Pool Boiling of Sodium

[+] Author and Article Information
P. J. Marto

U. S. Naval Post Graduate School, Monterey, Calif.

W. M. Rohsenow

Massachusetts Institute of Technology, Cambridge, Mass.

J. Heat Transfer 88(2), 196-203 (May 01, 1966) (8 pages) doi:10.1115/1.3691514 History: Received May 20, 1965


Commercial grade sodium was boiled from a horizontal disk at pressures of 65 mm, 200 mm, and 400 mm Hg absolute, with sodium temperatures ranging from 1200 F to 1500 deg F. Heat fluxes as high as 236,000 Btu/hr sq ft were attained. Boiler surface finishes ranged from highly polished mirror finishes to coarse, porous coatings. By following a prescribed cleaning and filling procedure, nucleate-boiling results were generally reproducible for a given-type surface. The effect of roughness as well as any aging and hysteresis effects were experimentally determined. Incipient nucleate boiling results are discussed as well as the effect of pressure and pool depth on the nucleate-boiling curve.

Copyright © 1966 by ASME
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