Abstract
Single vapour bubble growth and heat transfer mechanism during flow boiling in a rectangular horizontal mini-channel were experimentally investigated. The hydraulic diameter of the channel was 1454 pm, with an aspect ratio (W-in/d(in)) of 10. Degassed FC-72 was used as the working liquid. In this paper, bubble equivalent radius was found to increase linearly till a critical time, beyond which the growth turned into exponential. Bubble growth rate increases with increasing heat flux. Heat transfer mechanisms of the bubble growth at different heat fluxes and mass fluxes were discussed. in addition, the relation between thermal and flow conditions with bubble temporal geometry was explored.
| Original language | English |
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| Title of host publication | DIFFUSION IN SOLIDS AND LIQUIDS VI, PTS 1 AND 2 |
| Editors | A Ochsner, GE Murch, JMP Delgado |
| Place of Publication | STAFA-ZURICH |
| Publisher | TRANS TECH PUBLICATIONS LTD |
| Pages | 548-553 |
| Number of pages | 6 |
| ISBN (Print) | ***************** |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 6th International Conference on Diffusion in Solids and Liquids - Paris Duration: 5 Jul 2010 → 7 Jul 2010 |
Conference
| Conference | 6th International Conference on Diffusion in Solids and Liquids |
|---|---|
| City | Paris |
| Period | 5/07/10 → 7/07/10 |
Keywords / Materials (for Non-textual outputs)
- Bubble dynamics
- Heat transfer
- Flow boiling
- Confinement