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dc.contributor.authorWang, Chi-Chuanen_US
dc.contributor.authorChen, Kuan-Yuen_US
dc.contributor.authorLiaw, Jane-Sunnen_US
dc.contributor.authorTseng, Chih-Yungen_US
dc.date.accessioned2015-07-21T08:29:44Z-
dc.date.available2015-07-21T08:29:44Z-
dc.date.issued2015-01-01en_US
dc.identifier.issn0017-9310en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.09.030en_US
dc.identifier.urihttp://hdl.handle.net/11536/123855-
dc.description.abstractIn this study, a comparative study of the airside performance of fin-and-tube heat exchangers having plain, louver, and semi-dimple vortex generator (VG) are made. A total of eighteen samples are made and tested with the corresponding fin pitch (F-p) being 1.6 mm and 2.0 mm and the number of tube row (N) are 1, 2 and 4, respectively. Test results indicate that the heat transfer coefficient for N = 1 for louver fin geometry with a smaller fin pitch of 1.6 mm is higher than that of semi-dimple VG and plain fin geometry. For N = 1 with a larger fin pitch of 2.0 mm, the semi-dimple VG is marginally higher than that of louver fin geometry when the frontal velocity is lower than 2 m s(-1). However, the trend is reversed where the heat transfer coefficient for louver fin outperforms that of semi-dimple VG when the velocity is increased further. For the airside performance for N = 2 or N = 4, the heat transfer coefficients for louver fin geometry is about 2-15% higher than those of semi-dimple geometry. The difference is increased with the rising velocity and the results prevail for both fin pitches. However, the difference is smaller at a larger fin pitch due to the comparatively effectively swirled motion of the semi-dimple VG. The effect of the number of tube row on the heat transfer coefficients is negligible for louver fin geometry and is also rather small for semi-dimple VG. For the plain fin geometry, the effect of tube row is also small when N > 1. The heat transfer performance for N = 1 is different from N = 2 or N = 4 due to its inline configuration. (C) 2014 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectFin-and-tube heat exchangeren_US
dc.subjectLouver finen_US
dc.subjectVortex generatoren_US
dc.titleAn experimental study of the air-side performance of fin-and-tube heat exchangers having plain, louver, and semi-dimple vortex generator configurationen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.ijheatmasstransfer.2014.09.030en_US
dc.identifier.journalINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFERen_US
dc.citation.volume80en_US
dc.citation.spage281en_US
dc.citation.epage287en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000345202100030en_US
dc.citation.woscount0en_US
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