Experimental analysis of the effect of a wettability gradient on condensation heat transfer coefficient

dc.contributor.authorMancio Reis, F.M.en
dc.contributor.authorLavieille, P.en
dc.contributor.authorMiscevic, M.en
dc.date.accessioned2017-09-19T12:48:37Z
dc.date.available2017-09-19T12:48:37Z
dc.date.issued2017en
dc.descriptionPapers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .en
dc.description.abstractThe use of surfaces with wettability gradient aims to cover the surface with drops of small size to allow a large heat exchange. Thus, the action of the wettability gradient on the surface of the substrate is twofold: on the one hand, it allows the preservation of a dropwise condensation regime for which the heat exchange coefficient is particularly important and, on the other hand it allows the evacuation of the dispersed phase, thus promoting a renewal of the surface with very important heat exchanges during the nucleation phase. Thereby, a heat transfer enhancement factor up to 3.4 has been experimentally measured.en
dc.description.sponsorshipInternational centre for heat and mass transfer.en
dc.description.sponsorshipAmerican society of thermal and fluids engineers.en
dc.format.extent6 pagesen
dc.format.mediumPDFen
dc.identifier.urihttp://hdl.handle.net/2263/62396
dc.language.isoenen
dc.publisherHEFATen
dc.rightsUniversity of Pretoriaen
dc.subjectWettability gradienten
dc.subjectCondensation heat transferen
dc.titleExperimental analysis of the effect of a wettability gradient on condensation heat transfer coefficienten
dc.typePresentationen

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