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RESEARCH PAPERS: Boiling Heat Transfer

Local Measurements in the Two-Phase Region of Turbulent Subcooled Boiling Flow

[+] Author and Article Information
R. P. Roy, V. Velidandla

Arizona State University, Department of Mechanical and Aerospace Engineering, Tempe, AZ 85287-6106

S. P. Kalra

Electric Power Research Institute, Nuclear Power Division, Palo Alto, CA 94303

P. Peturaud

Electricité de France, 6, Quai Watier, 78401 Chatou Cedex France

J. Heat Transfer 116(3), 660-669 (Aug 01, 1994) (10 pages) doi:10.1115/1.2910920 History: Received April 01, 1993; Revised November 01, 1993; Online May 23, 2008

Abstract

Local measurements of vapor phase residence time fraction, vapor bubble size distribution, bubble axial velocity, and vapor and liquid temperatures were performed in turbulent boiling flow of Refrigerant-113. The dissolved air content of the experimental fluid was minimized. Data are reported for three wall heat fluxes, two fluid mass velocities, and three subcoolings at test section inlet. Local time-averaged interfacial area concentrations were estimated. The measuring devices, viz., dual-sensor fiber-optic probe for the vapor bubble measurements and phase-compensated chromel-alumel microthermocouple for the fluid temperature measurement, provided more complete and accurate data compared with our earlier work. The data should be helpful in the development and validation of multidimensional turbulent boiling flow models. Further work is needed, however, before the local interfacial area concentration can be determined with confidence.

Copyright © 1994 by The American Society of Mechanical Engineers
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