Measurement of Vapor Superheat in Post-Critical-Heat-Flux Boiling

[+] Author and Article Information
S. Nijhawan, J. C. Chen, R. K. Sundaram, E. J. London

Institute of Thermo-Fluld Engineering and Science, Lehigh University, Bethlehem, Pa. 18015

J. Heat Transfer 102(3), 465-470 (Aug 01, 1980) (6 pages) doi:10.1115/1.3244324 History: Received October 01, 1979; Online October 20, 2009


A differentially-aspirated superheat probe was developed to measure vapor temperatures in post-critical-heat-flux, dispersed-flow boiling. Measurements obtained for water, at low-to-moderate pressures and mass flow rates in a tube, indicated very significant non-equilibrium, with vapor superheats of several hundred degrees (°C). Predictions of published correlations showed unsatisfactory agreement with the experimental results.

Copyright © 1980 by ASME
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