Abstract
The present study investigated the effect of internal aluminum fins with a star-shape cross-section on the heat transfer enhancement and pressure drop in a counterflow heat exchanger. A concentric-tube heat exchanger was used with water as the working fluid. The heat transfer rate increased by 12-51% over a plain tube value, depending on internal fin configurations used. However, the pressure drop also increased substantially by 286-399%. The results showed that a straight-fin configuration is the best to produce a heat transfer increase in a counterflow heat exchanger. Twisted fin configurations did not further increase the heat transfer rate.
| Original language | English |
|---|---|
| Pages (from-to) | 719-726 |
| Number of pages | 8 |
| Journal | International Communications in Heat and Mass Transfer |
| Volume | 33 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2006.07 |
Keywords
- Heat exchanger
- Heat transfer enhancement
- Internal fins
- Pressure drop
Quacquarelli Symonds(QS) Subject Topics
- Engineering - Chemical
- Physics & Astronomy
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