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International Heat Transfer Conference 3

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

DNB MEASUREMENTS FOR UPWARDS FLOW OF WATER IN AN UNHEATED SQUARE CHANNEL WITH A SINGLE UNIFORMLY HEATED ROD AT l600-23OO PSIA

P. S. Larsen
Atomic Power Division Westinghouse Electric Corporation Pittsburgh, Pennsylvania; Dept. of Mech. Eng., University of Michigan, Ann Arbor, Michigan, USA

A. S. Kitzes
Atomic Power Division Westinghouse Electric Corporation Pittsburgh, Pennsylvania

T. D. Stormer
Atomic Power Division Westinghouse Electric Corporation Pittsburgh, Pennsylvania

J. Green
Atomic Power Division Westinghouse Electric Corporation Pittsburgh, Pennsylvania

L. S. Tong
U.S. Nuclear Regulatory Commission, Washington, D.C. 20555

DOI: 10.1615/IHTC3.70
pages 143-148

Abstract

Experimental results are reported for 57 DNB heat flux measurements obtained from a single 0.320 inch O.D. by 28 inch long heater rod centered in a 0.510 inch square, unheated channel, for conditions of upwards flow of water at 1600-2300 psia pressure, 520-600°F inlet temperature, and 0.5 - 3.0 × 106 lb/hr ft2 mass velocity. A comparison is made with existing DNB correlations, among which the Westinghouse modified W-3 correlation yields good agreement, predicting the measured DNB heat flux within +15% and -10%.

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