Air side heat transfer coefficients of discrete plate finned-tube heat exchangers with large fin pitch
- Authors
- Choi, Jong Min; Kim, Yonghan; Lee, Mooyeon; Kim, Yongchan
- Issue Date
- 2월-2010
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Plate heat exchangers; Discrete fin; Large fin pitch; Fin alignment
- Citation
- APPLIED THERMAL ENGINEERING, v.30, no.2-3, pp.174 - 180
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED THERMAL ENGINEERING
- Volume
- 30
- Number
- 2-3
- Start Page
- 174
- End Page
- 180
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117043
- DOI
- 10.1016/j.applthermaleng.2009.08.001
- ISSN
- 1359-4311
- Abstract
- The objective of this study is to investigate the heat transfer characteristics of discrete plate finned-tube heat exchangers with large fin pitches. Thirty-four heat exchangers were tested with variations of fin pitches, the number of tube rows, fin alignment, and vertical fin space. The j-factor of the discrete plate finned-tube exchanger was analyzed as a function of coil geometry and then compared with that of the continuous plate finned-tube heat exchanger. For fin pitches of 7.5-15 mm, the j-factors; of the discrete plate finned-tube heat exchangers were 6.0-11.6% higher than those of the continuous plate finned-tube heat exchangers. Two separate correlations for the j-factor were developed for the inline and the staggered fin alignment in the discrete plate finned-tube heat exchangers to predict the measured data within a relative deviation of 2.9%. (C) 2009 Elsevier Ltd. All rights reserved.
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