Dropwise Condensation on Advanced Functional Surfaces – Theory and Experimental Setup

Compared to filmwise condensation on conventional condenser surfaces, heat transfer can be significantly enhanced by tuning the wettability of the surface to promote dropwise condensation. Following rapid advances in surface engineering, the last years have seen an unprecedented interest in dropwise...

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Bibliographic Details
Published in:Chemical engineering & technology 2017-11, Vol.40 (11), p.1966-1974
Main Authors: Sablowski, Jakob, Unz, Simon, Beckmann, Michael
Format: Article
Language:English
Subjects:
Condensation
Dropwise condensation
Heat transfer
Hydrophobic surfaces
Hydrophobicity
Surfaces
Wettability
Wetting behavior
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Summary:Compared to filmwise condensation on conventional condenser surfaces, heat transfer can be significantly enhanced by tuning the wettability of the surface to promote dropwise condensation. Following rapid advances in surface engineering, the last years have seen an unprecedented interest in dropwise condensation research. This brief review highlights recent advances in theory and experimental investigation regarding dropwise condensation on smooth hydrophobic surfaces, micro‐ and nanostructured superhydrophobic surfaces, biphilic surfaces with patterned wettability, and lubricant‐infused surfaces. Research on dropwise condensation has gained a lot of traction in recent years. This review provides an overview on emerging approaches for surface functionalization and the corresponding wetting properties that promote dropwise condensation. The implications for enhanced heat transfer and advances in heat transfer modeling are also discussed.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201700160