期刊
HEAT TRANSFER ENGINEERING
卷 27, 期 10, 页码 20-29出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01457630600904635
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New correlations predicting the local boiling heat transfer coefficients for vertical flow over a tube bundle have been developed. These correlations were developed for three different classes of tubes: smooth, low-finned, and Turbo-BII HP. These correlations are based on experiments with refrigerants R-134a, R-507A, and R-410A, at a saturation temperature of 4.4 degrees C (40 degrees F). Each one accounts for the local flow structure and/or local geometry particular to each tube. Each one also uses a void fraction model designed specifically for vertical two-phase flow in a tube bundle as an integral part of the correlation. The correlations have been compared to recent local bundle boiling data and show good agreement to within +/- 20%.
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