The Sonic Limit in Sodium Heat Pipes

[+] Author and Article Information
E. K. Levy, S. F. Chou

Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, Pa.

J. Heat Transfer 95(2), 218-223 (May 01, 1973) (6 pages) doi:10.1115/1.3450029 History: Received July 26, 1971; Revised March 15, 1972; Online August 11, 2010


The results of an analytical study of the vapor dissociation–recombination and homogeneous vapor condensation phenomena in sodium heat pipes are described. It is shown that neither the dissociation–recombination reaction nor the vapor condensation process has a large influence on the sonic-limit heat transfer rate. The single most important factor is shown to be the wall shear stress in the heat-pipe vapor passage. The friction effects control the location of the sonic point, determine if the flow in the condenser section will be subsonic or supersonic, and decrease the sonic-limit heat transfer rate to values which can be substantially lower than those which are predicted from inviscid analyses.

Copyright © 1973 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In