Dynamics of water condensation over arrays of hydrophilic patches
Keywords: 
Materias Investigacion::Física
Hydrophobic
Hydrophylic
Wettability
Condensation
Physics
Breath figures
Issue Date: 
May-2017
Publisher: 
Springer Berlin Heidelberg
ISSN: 
1951-6401
Citation: 
Seco-Gudiña R, Guadarrama-Cetina J, González-Viñas W. Dynamics of water condensation over arrays of hydrophilic patches. Eur. Phys. J. Special Topics 2017;226(6):1189-1198.
Abstract
We report experimental results of drop-wise condensation on a wettability patterned substrate. It consists of a 2-d array of hydrophilic patches/spots on a macroscopically hydrophobic surface. We show that in this kind of system, there is not a relevant humidity sink, but the scale and the closeness of the different patches/spots affect the mechanisms which are important during the experiment. These results may provide clues to obtain higher dew yields in arid or semi-arid regions as a way to obtain potable water.

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