An Experimental and Theoretical Investigation Into Thermally Governed Transient Flow Surges in Two-Phase Condensing Flow

[+] Author and Article Information
G. L. Wedekind, B. L. Bhatt

Oakland University, Rochester, Mich.

J. Heat Transfer 99(4), 561-567 (Nov 01, 1977) (7 pages) doi:10.1115/1.3450742 History: Received February 17, 1977; Online August 11, 2010


The specific transient phenomenon under consideration is the outlet flowrate of subcooled liquid from a tube-type condenser where complete condensation takes place. Experimental data are presented which indicates that a small change in the inlet vapor flow-rate will momentarily cause a very large transient surge in the outlet flowrate of subcooled liquid. These experimentally measured flow transients are predicted quite accurately using a system mean void fraction model. Also, some preliminary results are presented which indicate the influence of throttling at the condenser outlet as a means of attenuating the transient overshoot characteristics.

Copyright © 1977 by ASME
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