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Bubble nucleation in microchannel flow boiling using single artificial cavity SCIE SCOPUS
- Title
- Bubble nucleation in microchannel flow boiling using single artificial cavity
- Authors
- Jae Yong Lee; Kim, MH; Massoud Kaviany; Sang Young Son
- Date Issued
- 2011-12
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Microchannel (D-h <= 100 mu m) water flow boiling under low mass flux (G <= 138.9 kg/(m(2) s)) is presented to investigate the local phenomena of flow regime development and nucleating bubble growth rate. During horizontal flow, onset of nucleation, flow regime, and isolated single bubble growth and detachment from a single artificial cavity were observed and analyzed by microscopic high-speed visualization under various flow rates and wall superheat conditions. Results showed that while the predictions pertaining to inception by bubble nucleation theory match well, bubble growth rate, detachment and expansion in a microchannel differs dramatically from a macrochannel. (C) 2011 Elsevier Ltd. All rights reserved.
- Keywords
- Visualization; Flow boiling; Bubble incipience; Bubble detachment; Bubble growth rate; Microchannel; PART I; GROWTH; WATER
- ISSN
- 0017-9310
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, vol. 54, no. 25-26, page. 5139 - 5148, 2011-12
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