A numerical investigation of louvered fin-and-tube heat exchangers having circular and oval tube configurations

Jin Sheng Leu, Min Sheng Liu, Jane Sunn Liaw, Chi-Chuan Wang*

*Corresponding author for this work

研究成果: Article同行評審

88 引文 斯高帕斯(Scopus)

摘要

A numerical investigation of the airside performance for fin-and-tube heat exchanger having circular and oval configuration is presented in this study. The geometrical parameters of louver angle, louver pitch, and louver length are examined. For a fixed louver length (6.25 mm) and louver angle (14°), a 10% decrease of heat transfer performance is observed and a 41% decrease of pressure drop is seen for oval tube configuration. The calculated results indicate that the pressure drops always with increase in louver angle. However, an optimal value of heat transfer performance is observed due to the difference in the development of thermal boundary layer on the upper and lower louver surface. Both the heat transfer and friction performance increase with louver length. However, the rate of the increase of heat transfer performance is about the same as the increase of pressure drops.

原文English
頁(從 - 到)4235-4243
頁數9
期刊International Journal of Heat and Mass Transfer
44
發行號22
DOIs
出版狀態Published - 十一月 2001

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