Photographic Study of Bubble Behaviors in Subcooled Boiling
(2001) Photographic Study of Bubble Behaviors in Subcooled Boiling. In Panchal, C.B. and Bergman, T., Eds. Proceedings 35th National Heat Transfer Conference(NHTC01-11333), Anaheim, California, USA.
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Abstract
Forced convection subcooled water boiling experiments are conducted on a vertical-upward annular channel. A high-speed digital video camera (5,000 frames/second) is used to record the dynamics of the subcooled ebullition process. The flow visualization experiments show that generally the bubble departure frequency increases as the heat flux increases. For some cases, the frequency may reach a limit around 1000 bubbles/second. The average bubble lift-off diameter becomes smaller as the heat flux increases. In addition, the bubble diameter growth and bubble velocity after bubble lift-off is determined by analyzing the image. The experimental data obtained from this study can be used in modeling of the bubble departure frequency, bubble lift-off diameter, and bubble dynamics in subcooled boiling.
| Item Type: | Conference Paper |
|---|---|
| Status: | Published |
| Keywords: | Bubble, Photographic Study, Subcooled boiling, Two-Phase Flow |
| Subjects: | 290000 Engineering and Technology > 290500 Mechanical and Industrial Engineering > 290501 Mechanical Engineering 240000 Physical Sciences > 240500 Classical Physics > 240502 Fluid Physics 290000 Engineering and Technology > 291800 Interdisciplinary Engineering > 291802 Heat and Mass Transfer Operations |
| ID Code: | 10340 |
| Deposited By: | Situ, Rong |
| Deposited On: | 23 October 2007 |
| Alternative Locations: | http://catalog.asme.org/ConferencePublications/CDROM/2001_Proceedings_35th.cfm |
| Copyright Owner: | Copyright 2001 ASME |
| Additional Information: | Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the journal’s website (see hypertext link) or contact the author. |