Abstract
In the present study, the overall heat transfer coefficient, friction factors, and effectiveness of a dimple-protrusion air-toair counter-flow plate heat exchanger have been measured at low Reynolds number (500 < Re < 4,000). The heat exchanger consists of 4 channels per flow direction built using 1 mm aluminum plates. Dimples are specially arranged such that protrusions are opposed for applications that require structural support to withstand high pressure difference between the two fluids. A maximum heat enhancement level of 3.2 was obtained with a penalty of increased friction factor by 9 times which leads to a maximum performance factor of 1.5. The effectiveness obtained was found to be almost independent of Reynolds number on most tested Re. A detailed uncertainty analysis has been performed to determine the uncertainty in the results.
| Original language | English |
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| Title of host publication | ASME 2015 Power Conference, POWER 2015, collocated with the ASME 2015 9th International Conference on Energy Sustainability, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum |
| Publisher | American Society of Mechanical Engineers (ASME) |
| ISBN (Electronic) | 9780791856604 |
| DOIs | |
| State | Published - 2015 |
Publication series
| Name | American Society of Mechanical Engineers, Power Division (Publication) POWER |
|---|---|
| Volume | 2015-January |
Bibliographical note
Publisher Copyright:© 2015 by ASME.
ASJC Scopus subject areas
- Mechanical Engineering
- Energy Engineering and Power Technology