Water harvest via dewing
- Water harvest via dewing
- 이안나; 문명운; 임현의; 김완두; 김호영
- water harvest; dewing; superhydrophobic; superhydrophilic
- Issue Date
- VOL 28, NO 27, 10183-10191
- Harvesting water from humid air via dewing can
provide a viable solution to a water shortage problem where
liquid-phase water is not available. Here we experimentally
quantify the effects of wettability and geometry of the
condensation substrate on the water harvest efficiency. Uniformly
hydrophilic surfaces are found to exhibit higher rates of water
condensation and collection than surfaces with lower wettability.
This is in contrast to a fog basking method where the most efficient surface consists of hydrophilic islands surrounded by
hydrophobic background. A thin drainage path in the lower portion of the condensation substrate is revealed to greatly enhance
the water collection efficiency. The optimal surface conditions found in this work can be used to design a practical device that
harvests water as its biological counterpart, a green tree frog, Litoria caerulea, does during the dry season in tropical northern
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- KIST Publication > Article
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