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dc.contributor.authorYang, Kai-Shingen_US
dc.contributor.authorLin, Kai-Hsiangen_US
dc.contributor.authorTu, Cheng-Weien_US
dc.contributor.authorHe, Yu-Zhenen_US
dc.contributor.authorWang, Chi-Chuanen_US
dc.date.accessioned2018-08-21T05:52:51Z-
dc.date.available2018-08-21T05:52:51Z-
dc.date.issued2017-12-01en_US
dc.identifier.issn0017-9310en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijheatmasstransfer.2017.08.112en_US
dc.identifier.urihttp://hdl.handle.net/11536/144011-
dc.description.abstractThis study experimentally investigates the condensation performance amid hydrophobic, hydrophilic, superhydrophilic and hydrophobic-hydrophilic hybrid patterned surfaces with air velocity ranging from 0.5 m/s to 4.0 m/s and relative humidity of 85%, 60% and 40%. The hybrid novel surface employs inverted V shape channels design with alternate hydrophilic and hydrophobic channel to direct condensate, and the accumulated condensate is gathered at vertical hydrophilic channel for further effective condensate removal. It is found that the heat transfer coefficient for hydrophobic surface is higher than that of hydrophilic surface irrespective of the operational velocity and relative humidity. Dropwise condensation prevails for the hydrophobic surface and a twig-like structure of condensate is seen for the hydrophilic surface, and this phenomenon becomes more pronounced when the relative humidity is increased. The superhydrophilic surface shows the worst heat transfer performance due to filmwise condensation. The hybrid surface shows superior heat transfer performance over other surfaces. The heat transfer coefficient obtained is around 3-9% higher than that of hydrophobic surface and is about 6-16% higher than hydrophilic one. The proposed novel design offers a shorter cyclic condensate removal time and better condensate drainage. It is found that the maximum diameter.for the hybrid surface is about 80-90% smaller than the hydrophobic surface and the droplet size before falling off is relatively independent of operational velocity. (C) 2017 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectCondensation heat transferen_US
dc.subjectHydrophilicen_US
dc.subjectHydrophobicen_US
dc.subjectHybrid surfaceen_US
dc.subjectDehumidificationen_US
dc.titleExperimental investigation of moist air condensation on hydrophilic, hydrophobic, superhydrophilic, and hybrid hydrophobic-hydrophilic surfacesen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.ijheatmasstransfer.2017.08.112en_US
dc.identifier.journalINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFERen_US
dc.citation.volume115en_US
dc.citation.spage1032en_US
dc.citation.epage1041en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000414108400089en_US
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