Characterization of Coalescence-Induced Droplet Jumping Height on Hierarchical Superhydrophobic Surfaces.

ABSTRACT: Coalescence-induced condensate droplet jumping from superhydrophobic surfaces can be exploited in condensation heat-transfer enhancement, imparting self-cleaning behavior to surfaces, anti-icing coatings, and other industrial uses. An intriguing application would exploit this phenomenon to achieve thermal rectification using a sealed vapor chamber with opposing superhydrophilic and superhydrophobic surfaces. During forward operation, continuous evaporation occurs from the heated superhydrophilic evaporator surface; self-propelled jumping returns the condensate droplets from the cooler superhydrophobic surface to the evaporator, allowing passive recirculation of the working fluid without a reliance on gravity or capillary wicking for fluid return. In reverse operation, when the superhydroph

SUBMITTER: Chen X 

PROVIDER: S-EPMC6641040 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature