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Boiling heat transfer of subcooled water in a horizontal rectangular channel: observation of mEB and mEB generation

โœ Scribed by Koichi Suzuki; Kinichi Torikai; Hedeaki Satoh; Junji Ishimaru; Yasuo Tanaka

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
510 KB
Volume
30
Category
Article
ISSN
1099-2871

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โœฆ Synopsis

Abstract

Forced convection boiling of subcooled water was performed in a horizontal rectangular channel with the heated surface on the bottom. The experiment was conducted for heating surfaces, 10, 20, or 40 mm in length. Microbubble emission boiling (MEB) was observed in subcooled transition boiling and was easy to generate for the shorter heating surfaces. In higher flow velocity of subcooled water, MEB was generated at even lower subcooling. Stormy MEB was observed at both the higher subcooling and the higher flow velocity of water. In the stormy MEB, the heat flux rose rapidly above the critical heat flux with larger acoustic noise and vibration. ยฉ 2001 Scripta Technica, Heat Trans Asian Res, 30(5): 426โ€“438, 2001

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