The Prediction of Low-Quality Boiling Voids

[+] Author and Article Information
P. Griffith

Massachusetts Institute of Technology, Cambridge, Mass.

J. Heat Transfer 86(3), 327-333 (Aug 01, 1964) (7 pages) doi:10.1115/1.3688684 History: Received April 23, 1963


Slug flow theory is used to predict the density in heated channels of various shapes. In order to make this calculation possible, measurements are made of the bubble rise velocity in annuli, tube bundles, and channels. It is found that the large dimension is most important in channels and the shroud dimension most important in annuli and tube bundles. It is also found that no rotationally symmetrical bubble shapes are obtained in annuli and tube bundles. Finally, a comparison is made between the theory, which contains no free constants, and the experiments. The comparison is good. The results, as presented, apply only to vertical heated channels of various shapes with up flow in the low-quality region.

Copyright © 1964 by ASME
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