Boiling Heat Transfer in a Narrow Eccentric Annulus, Part II: Heat Transfer

[+] Author and Article Information
B. S. Johnston, A. Sharon, S. G. Bankoff

Department of Chemical Engineering, Northwestern University, Evanston, Ill. 60201

J. Eng. Power 105(4), 748-754 (Oct 01, 1983) (7 pages) doi:10.1115/1.3227477 History: Received March 21, 1983; Online September 28, 2009


An experimental apparatus was used to simulate the annular crevice formed by a heated tube and drilled tube support plate (TSP) in a pressurized water reactor recirculating steam generator. A previous paper [1] has described the stable dryout phenomena which occur. This paper discusses the heat transfer mechanisms in the contact and wide gap regions of the crevice. Changes in flow rate and inlet enthalpy are found to have little effect on the patch extent and contact line temperature, while an increase in diametral gap size decreases both. Increasing the thermal conductivity of the TSP also reduces the contact line temperature, but does not affect the wide gap region.

Copyright © 1983 by ASME
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