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

Mancio Reis, F.M.; Lavieille, P.; Miscevic, M.

dc.contributor.author	Mancio Reis, F.M.	en
dc.contributor.author	Lavieille, P.	en
dc.contributor.author	Miscevic, M.	en
dc.date.accessioned	2017-09-19T12:48:37Z
dc.date.available	2017-09-19T12:48:37Z
dc.date.issued	2017	en
dc.description	Papers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .	en
dc.description.abstract	The 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.sponsorship	International centre for heat and mass transfer.	en
dc.description.sponsorship	American society of thermal and fluids engineers.	en
dc.format.extent	6 pages	en
dc.format.medium	PDF	en
dc.identifier.uri	http://hdl.handle.net/2263/62396
dc.language.iso	en	en
dc.publisher	HEFAT	en
dc.rights	University of Pretoria	en
dc.subject	Wettability gradient	en
dc.subject	Condensation heat transfer	en
dc.title	Experimental analysis of the effect of a wettability gradient on condensation heat transfer coefficient	en
dc.type	Presentation	en