An experimental study of condensate retention on the air side of flat-tube heat exchangers
Abstract
Condensate on the air-side surface of flat-tube air-cooling heat exchangers can result in several adverse effects on the overall thermal hydraulic performance. In order to enhance the performance of compact heat exchangers under wet-surface conditions, promoting the drainage of condensed water is critical. Drainage channels on tube walls might provide a robust solution to promote condensate drainage from compact heat exchangers. A quantitative and qualitative evaluation of the effectiveness of drainage channels on the condensate retention characteristics of compact flat-tube louver-fin heat exchangers is presented. Various geometries of drainage channels are engraved on the surrogate tubes in contact with fin stock. Two fin designs are tested using dynamic dip testing method and a small wind tunnel. The data from the quantitative results and the visualization tests clearly show that the drainage channels reduce the condensate retention for one of the fin designs. The results also provide a comparison between drainage channels based on their geometry and dimensions.
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Drain channels on the flat tube wall reduce condensate retention, and triangular drain channels produce the best drainage performance.
“They claimed that drain channels reduce condensate retention and that triangular drain channels produced the best drainage performance.”
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Xiong, T., Liu, G., Gao, Q., Yan, G., & Yu, J. (2023) · Journal of Building Engineering · doi:10.1016/j.jobe.2022.105654 · Cited by 26 · see citing works
Assessment of the heat transfer efficiency of perforated louvered fins for improved drainage
Qin, Z., Wang, H., Liu, S., Wei, H., & Hu, G. (2024) · International Journal of Heat and Mass Transfer · doi:10.1016/j.ijheatmasstransfer.2024.125654 · Cited by 12 · see citing works
Experimental study on liquid drainage characteristics of metal foams under sloshing conditions
Zhou, F., Hu, H., Lai, Z., & Ding, G. (2018) · International Journal of Refrigeration · doi:10.1016/j.ijrefrig.2018.12.027 · Cited by 10 · see citing works
- Authors
- Gupta, D., Park, Y.-G., & Jacobi, A. M.
- Affiliations
- University of Illinois Urbana-Champaign (US)
- The University of Texas Rio Grande Valley (US)
- ORCID
- Jacobi, Anthony M.
- Venue
- 2010 14th International Heat Transfer Conference, Volume 2
- Publisher
- ASMEDC
- Published
- 2010-01-01
- Pages
- 227-234
- OpenAlex
- W2320845196
- Cited by
- 3
- References
- 0
- Citations by year
- 2024: 1 · 2022: 1 · 2018: 1
- FWCI
- 0.00
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- International Heat Transfer Conference (IHTC) (publishedVersion)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer and Optimization
- Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer and Boiling Studies
- Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer Mechanisms
- Keywords
- flat tube heat exchanger, air-cooled heat exchangers, drainage channels, condensate drainage, fin design, compact heat exchangers
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