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dc.contributor.authorChen, A.en_US
dc.contributor.authorLin, T. F.en_US
dc.contributor.authorAli, Hafiz Muhammaden_US
dc.contributor.authorYan, Wei-Monen_US
dc.date.accessioned2020-10-05T01:59:50Z-
dc.date.available2020-10-05T01:59:50Z-
dc.date.issued2020-08-01en_US
dc.identifier.issn0017-9310en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijheatmasstransfer.2020.119974en_US
dc.identifier.urihttp://hdl.handle.net/11536/154972-
dc.description.abstractThe significant effects of imposed wall heat flux oscillation on bubble characteristics of subcooled flow boiling with R-134a in horizontal annular ducts are experimentally performed in details. Specific emphasis has been applied on the bubble dynamics of the time periodic subcooled flow boiling characteristics influenced by the mean levels, amplitudes, and periods of the wall heat flux oscillations. The obtained experimental results have disclosed that the bubble parameters like the departure diameter, frequency and active nucleation site density, do oscillate periodically in time and are at the same frequency as the imposed wall heat flux oscillation. Nevertheless, these parameters also increase at long periods, high amplitudes of imposed heat flux oscillation or high values of mean imposed heat flux. Furthermore, the bubble size reduced after the time lag when the imposed heat flux decreases with time. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectHeat flux oscillationen_US
dc.subjectTime periodic subcooled flow boilingen_US
dc.subjectR-134aen_US
dc.subjectBubble characteristicsen_US
dc.subjectMini-channelen_US
dc.titleExperimental study on bubble characteristics of time periodic subcooled flow boiling in annular ducts due to wall heat flux oscillationen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.ijheatmasstransfer.2020.119974en_US
dc.identifier.journalINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFERen_US
dc.citation.volume157en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000543014600060en_US
dc.citation.woscount2en_US
Appears in Collections:Articles