Abstract
Bubble growth in flow boiling of R141b in a serpentine tube was experimentally and numerically investigated. Bubble dynamics were recorded and analyzed. Bubbles formed in a straight tube experienced distinct growth phase in the next U-bend: first grew, then shrank and grew again. A single-phase flow simulation was proposed for revealing temperature and flow field in the serpentine tube. The secondary flow at bends twisted the thermal boundary layer and mix cold main stream and superheat boundary layer at wall regime. The effective superheat around the bubble interpreted the bubble behavior noted in experiments. © 2011 Taiwan Institute of Chemical Engineers.
| Original language | English |
|---|---|
| Pages (from-to) | 727-734 |
| Journal | Journal of the Taiwan Institute of Chemical Engineers |
| Volume | 42 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Sept 2011 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- Bend
- Bubbly flow
- Secondary flow
- Serpentine tube
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