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Boiling 2000 Phenomena and Emerging Applications Volume 2

ISSN:
1-56700-148-3 (Print)

LOW PRESSURE SUBCOOLED FLOW BOILING CHF IN TUBES WITH DIFFERENT DIAMETERS

Yu-Zhou Chen
China Institute of Atomic Energy, Beijing, China

Feng Gou
China Institute of Atomic Energy

Hanxun Zhang
China Institute of Atomic Energy

Laomi Hao
China Institute of Atomic Energy

Abstract

The subcooled flow boiling CHF experiment is carried out in tubes of D = 2.32, 5.17, 8.05, 10 and 16 mm. 349 data are obtained, covering the range of the pressure 0.1 - 1.92 MPa, velocity 1.47 - 23.3 m/s, exit subcooling 3.7 - 108.7 K and the critical heat flux 4.2 - 38.3 MW/m2 Based on the data, some typical correlations, models and the look-up table are evaluated.