Photographic study of bubble behaviors in forced convection subcooled boiling

Situ, Rong, Mi, Ye, Ishii, Mamoru, and Mori, Michitsugu (2004) Photographic study of bubble behaviors in forced convection subcooled boiling. International Journal of Heat and Mass Transfer, 47 (17-18). pp. 3659-3667.

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DOI: 10.1016/j.ijheatmasstransfer.2004.04.005

View at Publisher Website: http://dx.doi.org/10.1016/j.ijheatmasstr...

Abstract

Forced convection subcooled water boiling experiments were conducted in a vertical annular channel. A high-speed digital video camera was applied to record the dynamics of the subcooled boiling process. The flow visualization results show that the bubble departure frequency generally increases as the heat flux increases. For some cases, the departure frequency may reach a limit around 1000 bubbles/s. In addition, bubble lift-off diameter, bubble growth rate and bubble velocity after bubble lift-off were determined by analyzing the images. The experimental data obtained from this study can be used in modeling the bubble departure frequency, bubble lift-off diameter, and bubble dynamics in forced convection subcooled boiling.


Item ID:	21501
Item Type:	Article (Research - C1)
ISSN:	1879-2189
Keywords:	bubble; flow visualization; subcooled boiling; two-phase flow; forced convection
Date Deposited:	26 Jun 2012 23:17
FoR Codes:	09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 50% 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 50%
SEO Codes:	85 ENERGY > 8504 Energy Transformation > 850403 Nuclear Energy @ 50% 85 ENERGY > 8507 Energy Conservation and Efficiency > 850701 Commercial Energy Conservation and Efficiency @ 50%
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