Generalized heat-transfer and fluid-flow correlations for corrugated louvered fins

Title
Generalized heat-transfer and fluid-flow correlations for corrugated louvered fins
Author
이관수
Keywords
Corrugated louvered fin; Colburn factor; Friction factor; Flow efficiency; Correlation; CFD
Issue Date
2015-04
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v. 83, Page. 604-612
Abstract
We report heat-transfer and fluid-flow correlations to describe the performance of heat exchangers that use corrugated louvered fins. Friction factor f and Colbum factor j were investigated with respect to the ratio of the fin pitch to the louver pitch (F-p/L-p). Whereas previous correlations cannot be applied for F-p/L-p ˃ 1, our fand j correlations can be utilized in a wide range of F-p/L-p which is not only to F-p/L-p ˂ 1, but also to F-p/L-p ˃ 1, for 100 ˂ Re ˂ 3000. We also derived flow efficiency eta correlation which is applicable for 0.3 ˂ L-p sinL(alpha)/F-p ˂ 0.7, where L-alpha, is the louver angle, in 100 ˂ Re ˂ 3000 within an error of +/- 15%. (C) 2014 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0017931014011521http://hdl.handle.net/20.500.11754/24005
ISSN
0017-9310; 1879-2189
DOI
10.1016/j.ijheatmasstransfer.2014.12.044
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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