Nanoarray-Embedded Hierarchical Surfaces for Highly Durable Dropwise Condensation.

ABSTRACT: Durable dropwise condensation of saturated vapor is of significance for heat transfer and energy saving in extensive industrial applications. While numerous superhydrophobic surfaces can promote steam condensation, maintaining discrete microdroplets on surfaces without the formation of a flooded filmwise condensation at high subcooling remains challenging. Here, we report the development of carbon nanotube array-embedded hierarchical composite surfaces that enable ultra-durable dropwise condensation under a wide range of subcooling (ΔT _sub = 8 K-38 K), which outperforms existing nanowire surfaces. This performance stems from the combined strategies of the hydrophobic nanostructures that allow efficient surface renewal and the patterned hydrophilic micro frames that protec

SUBMITTER: Hu Y 

PROVIDER: S-EPMC9394060 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature