Self-propelled sweeping removal of dropwise condensate
Abstract
Dropwise condensation can be enhanced by superhydrophobic surfaces, on which the condensate drops spontaneously jump upon coalescence. However, the self-propelled jumping in prior reports is mostly perpendicular to the substrate. Here, we propose a substrate design with regularly spaced micropillars. Coalescence on the sidewalls of the micropillars leads to self-propelled jumping in a direction nearly orthogonal to the pillars and therefore parallel to the substrate. This in- plane motion in turn produces sweeping removal of multiple neighboring drops. The spontaneous sweeping mechanism may greatly enhance dropwise condensation in a self-sustained manner.
- Authors:
-
- Duke Univ., Durham, NC (United States)
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- University of British Columbia, Vancouver
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1187922
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 160; Journal Issue: 22; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Qu, Xiaopeng, Boreyko, Jonathan, Liu, Fangjie, Agapov, Rebecca L., Lavrik, Nickolay V., Retterer, Scott T., Feng, James, Collier, Pat, and Chen, Chuan-Hua. Self-propelled sweeping removal of dropwise condensate. United States: N. p., 2015.
Web. doi:10.1063/1.4921923.
Qu, Xiaopeng, Boreyko, Jonathan, Liu, Fangjie, Agapov, Rebecca L., Lavrik, Nickolay V., Retterer, Scott T., Feng, James, Collier, Pat, & Chen, Chuan-Hua. Self-propelled sweeping removal of dropwise condensate. United States. https://doi.org/10.1063/1.4921923
Qu, Xiaopeng, Boreyko, Jonathan, Liu, Fangjie, Agapov, Rebecca L., Lavrik, Nickolay V., Retterer, Scott T., Feng, James, Collier, Pat, and Chen, Chuan-Hua. 2015.
"Self-propelled sweeping removal of dropwise condensate". United States. https://doi.org/10.1063/1.4921923. https://www.osti.gov/servlets/purl/1187922.
@article{osti_1187922,
title = {Self-propelled sweeping removal of dropwise condensate},
author = {Qu, Xiaopeng and Boreyko, Jonathan and Liu, Fangjie and Agapov, Rebecca L. and Lavrik, Nickolay V. and Retterer, Scott T. and Feng, James and Collier, Pat and Chen, Chuan-Hua},
abstractNote = {Dropwise condensation can be enhanced by superhydrophobic surfaces, on which the condensate drops spontaneously jump upon coalescence. However, the self-propelled jumping in prior reports is mostly perpendicular to the substrate. Here, we propose a substrate design with regularly spaced micropillars. Coalescence on the sidewalls of the micropillars leads to self-propelled jumping in a direction nearly orthogonal to the pillars and therefore parallel to the substrate. This in- plane motion in turn produces sweeping removal of multiple neighboring drops. The spontaneous sweeping mechanism may greatly enhance dropwise condensation in a self-sustained manner.},
doi = {10.1063/1.4921923},
url = {https://www.osti.gov/biblio/1187922},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 22,
volume = 160,
place = {United States},
year = {Tue Jun 02 00:00:00 EDT 2015},
month = {Tue Jun 02 00:00:00 EDT 2015}
}
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