IIR document
Heat transfer characteristics of flat plate finned-tube heat exchangers with large fin pitch + Erratum.
Author(s) : KIM Y.
Type of article: Article, IJR article
Summary
The objective of this study is to provide experimental data that can be used in the optimal design of flat plate finned-tube heat exchangers with large fin pitch. In this study, 22 heat exchangers were tested with a variation of fin pitch, number of tube row, and tube alignment. The air-side heat transfer coefficient decreased with a reduction of the fin pitch and an increase of the number of tube row. The reduction in the heat transfer coefficient of the four-row heat exchanger coil was approximately 10% as the fin pitch decreased from 15.0 to 7.5 mm over the Reynolds number range of 500-900 that was calculated based on the tube diameter. For all fin pitches, the heat transfer coefficient decreased as the number of tube row increased from 1 to 4. The staggered tube alignment improved heat transfer performance more than 10% compared to the inline tube alignment. A heat transfer correlation was developed from the measured data for flat plate finned-tubes with large fin pitch. The correlation yielded good predictions of the measured data with mean deviations of 3.8 and 6.2% for the inline and staggered tube alignment, respectively.
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Details
- Original title: Heat transfer characteristics of flat plate finned-tube heat exchangers with large fin pitch + Erratum.
- Record ID : 2005-2496
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 6
- Publication date: 2005/09
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Indexing
- Themes: Heat transfer
- Keywords: Heat transfer coefficient; Geometry; Finned tube; Expérimentation; Heat exchanger; Plate exchanger
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