Immersion Condensation on Oil-Infused Heterogeneous Surfaces for Enhanced Heat Transfer
Name
Immersion Condensation on Oil-Infused Heterogeneous Surfaces for Enhanced Heat Transfer.pdf
Description
Main article, figures, and supplementary information
Size
2.28 MB
Format
Adobe PDF
Checksum (MD5)
91fd288fe2b3a22fc1bf47173169cbd4
Author(s)
Xiao, Rong
Miljkovic, Nenad
Enright, Ryan
Wang, Evelyn N.
Date Issued
June 2013
Journal
Scientific Reports
Publisher
Nature Publishing Group
Citation
Xiao, Rong, Nenad Miljkovic, Ryan Enright, and Evelyn N. Wang. “Immersion Condensation on Oil-Infused Heterogeneous Surfaces for Enhanced Heat Transfer.” Scientific Reports 3 (June 13, 2013).
Version
Author's final manuscript
Abstract
Enhancing condensation heat transfer is important for broad applications from power generation to water harvesting systems. Significant efforts have focused on easy removal of the condensate, yet the other desired properties of low contact angles and high nucleation densities for high heat transfer performance have been typically neglected. In this work, we demonstrate immersion condensation on oil-infused micro and nanostructured surfaces with heterogeneous coatings, where water droplets nucleate immersed within the oil. The combination of surface energy heterogeneity, reduced oil-water interfacial energy, and surface structuring enabled drastically increased nucleation densities while maintaining easy condensate removal and low contact angles. Accordingly, on oil-infused heterogeneous nanostructured copper oxide surfaces, we demonstrated approximately 100% increase in heat transfer coefficient compared to state-of-the-art dropwise condensation surfaces in the presence of non-condensable gases. This work offers a distinct approach utilizing surface chemistry and structuring together with liquid-infusion for enhanced condensation heat transfer.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1038/srep01988
