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http://dx.doi.org/10.5916/jkosme.2010.34.4.491

Analysis of Heat Transfer Performance for Mini-Channel Tube Bundles in Cross flow using CFD  

Nam, Ki-Won (부산대학교 기계공학부)
Min, Jun-Kee (부산대학교 롤스로이스 대학기술센터)
Jeong, Ji-Hwan (부산대학교 기계공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.34, no.4, 2010 , pp. 491-499 More about this Journal
Abstract
Heat transfer performance of tube bundles have long been investigated since they were widely used. Most of previous experimental and numerical works for tube bundles were performed with tube diameter in the range of 25~51mm and Reynolds number of $8.000{\leq}Re{\leq}30.000$. Recently, tube bundles with small diameter tube collects interests since the mini-channel tube provides higher compactness. The present work aims to investigate the applicability of previous correlations available in the open literature to the tube bundles with small diameter of 1.5mm and $3.000{\leq}Re{\leq}7.000$. A commercial CFD package was used to analyze the thermal-hydraulic performance of them. The results show that the Zukauskas correlation developed for larger diameter tube and higher Reynolds number are still in good agreement with them within the discrepancy of 4.7%. The analyses also show that the Nuselt number increases with a decrease in the longitudinal pitch.
Keywords
Tube bundle; Heat transfer; Computational fluid dynamics; Heat exchanger;
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Times Cited By KSCI : 1  (Citation Analysis)
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