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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Bubble Behaviors in Subcooled Pool Boiling

Get access (open in a dialog) DOI: 10.1615/IHTC12.2320
6 pages

Abstract

The bubble behaviors of subcooled nucleate pool boiling are investigated both experimentally and theoretically. The analytical study based on the dynamic microlayer model predicts that one cycle of the individual bubble experiences four stages, i.e., the initial growth with a semi-spherical shape, the final growth with a spherical segment geometry, the condensation process and the waiting time. Also the vapor bubbles at Pt-wire are experimentally observed by high-speed camera at the speed of 10000 frames/sec in the nucleate pool boiling of subcooled water. The predicted four stages of individual bubble are clarified experimentally. A good tendency is shown between the present predictions of the total periods of individual bubbles and experimental data.