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Two-phase flow patterns with high-pressure water in a heated four-rod bundle. [BWR; PWR]

Journal Article · · Nucl. Sci. Eng.; (United States)
OSTI ID:6196510
Flow patterns that occur in a rod bundle with forced upward flow of boiling water have been photographed. The experimental rod bundle consisted of four vertical 0.25-in.-diam x 24.0-in-long rods arranged in a single row with spring collar supports. The tested conditions were: pressure-400 to 2000 psia, mass velocity-250,000 to 3,000,000 lb/h.ft/sup 2/, and heat flux (uniform)-up to 1,600,000 Btu/h.ft/sup 2/. The observed two-phase flow patterns were bubble flow, froth flow, slug flow, and annular flow. These flow patterns were mapped at constant pressure on plots of mass velocity versus flowing quality.
Research Organization:
Westinghouse Electric Corp., West Mifflin, PA
OSTI ID:
6196510
Journal Information:
Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 68:2; ISSN NSENA
Country of Publication:
United States
Language:
English