Controlling condensation and frost growth with chemical micropatterns

Simple item page
dc.contributor.authorBoreyko, Jonathan B.en
dc.contributor.authorHansen, Ryan R.en
dc.contributor.authorMurphy, Kevin R.en
dc.contributor.authorNath, Saurabhen
dc.contributor.authorRetterer, Scott T.en
dc.contributor.authorCollier, C. Patricken
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.date.accessioned2019-01-24T15:40:35Zen
dc.date.available2019-01-24T15:40:35Zen
dc.date.issued2016-01-22en
dc.description.abstractIn-plane frost growth on chilled hydrophobic surfaces is an inter-droplet phenomenon, where frozen droplets harvest water from neighboring supercooled liquid droplets to grow ice bridges that propagate across the surface in a chain reaction. To date, no surface has been able to passively prevent the in-plane growth of ice bridges across the population of supercooled condensate. Here, we demonstrate that when the separation between adjacent nucleation sites for supercooled condensate is properly controlled with chemical micropatterns prior to freezing, inter-droplet ice bridging can be slowed and even halted entirely. Since the edge-to-edge separation between adjacent supercooled droplets decreases with growth time, deliberately triggering an early freezing event to minimize the size of nascent condensation was also necessary. These findings reveal that inter-droplet frost growth can be passively suppressed by designing surfaces to spatially control nucleation sites and by temporally controlling the onset of freezing events.en
dc.description.notesA portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. We also wish to acknowledge startup funds from the Department of Biomedical Engineering and Mechanics at Virginia Tech. A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. We acknowledge Christophe Clanet for helpful discussions.en
dc.description.sponsorshipDepartment of Biomedical Engineering and Mechanics at Virginia Techen
dc.format.extent15en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1038/srep19131en
dc.identifier.issn2045-2322en
dc.identifier.other19131en
dc.identifier.pmid26796663en
dc.identifier.urihttp://hdl.handle.net/10919/86874en
dc.identifier.volume6en
dc.language.isoen_USen
dc.publisherSpringer Natureen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectsuperhydrophobic surfacesen
dc.subjectdropwise condensationen
dc.subjectheat-transferen
dc.subjectsupercooled wateren
dc.subjectice nucleationen
dc.subjectsolid-surfacesen
dc.subjectdesert beetleen
dc.subjectpolymer-filmsen
dc.subjectwettabilityen
dc.subjectfabricationen
dc.titleControlling condensation and frost growth with chemical micropatternsen
dc.title.serialScientific Reportsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
srep19131.pdf
Size:
2.93 MB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Scholarly Works, Biomedical Engineering and Mechanics