Dropwise condensation on solid hydrophilic surfaces
Droplet nucleation and condensation are ubiquitous phenomena in nature and industry. Over the past century, research has shown dropwise condensation heat transfer on nonwetting surfaces to be an order of magnitude higher than filmwise condensation heat transfer on wetting substrates. However, the ne...
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| Veröffentlicht in: | Science advances 2020-01, Vol.6 (2), p.eaax0746-eaax0746 |
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| creator | Cha, Hyeongyun Vahabi, Hamed Wu, Alex Chavan, Shreyas Kim, Moon-Kyung Sett, Soumyadip Bosch, Stephen A Wang, Wei Kota, Arun K Miljkovic, Nenad |
| description | Droplet nucleation and condensation are ubiquitous phenomena in nature and industry. Over the past century, research has shown dropwise condensation heat transfer on nonwetting surfaces to be an order of magnitude higher than filmwise condensation heat transfer on wetting substrates. However, the necessity for nonwetting to achieve dropwise condensation is unclear. This article reports stable dropwise condensation on a smooth, solid, hydrophilic surface (θ
= 38°) having low contact angle hysteresis ( |
| doi_str_mv | 10.1126/sciadv.aax0746 |
| format | Article |
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= 38°) having low contact angle hysteresis (<3°). We show that the distribution of nano- to micro- to macroscale droplet sizes (about 100 nm to 1 mm) for coalescing droplets agrees well with the classical distribution on hydrophobic surfaces and elucidate that the wettability-governed dropwise-to-filmwise transition is mediated by the departing droplet Bond number. Our findings demonstrate that achieving stable dropwise condensation is not governed by surface intrinsic wettability, as assumed for the past eight decades, but rather, it is dictated by contact angle hysteresis.</description><identifier>ISSN: 2375-2548</identifier><identifier>EISSN: 2375-2548</identifier><identifier>DOI: 10.1126/sciadv.aax0746</identifier><identifier>PMID: 31950076</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Materials Science ; SciAdv r-articles ; Surface Chemistry</subject><ispartof>Science advances, 2020-01, Vol.6 (2), p.eaax0746-eaax0746</ispartof><rights>Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).</rights><rights>Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). 2020 The Authors</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c390t-36a4da8f7fded9b8d191fa7071d2ec03ea51085d7b0cc8993b50df3edef6b21a3</citedby><cites>FETCH-LOGICAL-c390t-36a4da8f7fded9b8d191fa7071d2ec03ea51085d7b0cc8993b50df3edef6b21a3</cites><orcidid>0000-0003-4369-1908 ; 0000-0001-6225-854X ; 0000-0002-9807-9524 ; 0000-0002-0866-3680 ; 0000-0002-1613-3225 ; 0000-0003-0913-7655 ; 0000-0002-1260-2098 ; 0000-0001-9061-7896 ; 0000-0001-7157-7315</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6954056/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6954056/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31950076$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cha, Hyeongyun</creatorcontrib><creatorcontrib>Vahabi, Hamed</creatorcontrib><creatorcontrib>Wu, Alex</creatorcontrib><creatorcontrib>Chavan, Shreyas</creatorcontrib><creatorcontrib>Kim, Moon-Kyung</creatorcontrib><creatorcontrib>Sett, Soumyadip</creatorcontrib><creatorcontrib>Bosch, Stephen A</creatorcontrib><creatorcontrib>Wang, Wei</creatorcontrib><creatorcontrib>Kota, Arun K</creatorcontrib><creatorcontrib>Miljkovic, Nenad</creatorcontrib><title>Dropwise condensation on solid hydrophilic surfaces</title><title>Science advances</title><addtitle>Sci Adv</addtitle><description>Droplet nucleation and condensation are ubiquitous phenomena in nature and industry. Over the past century, research has shown dropwise condensation heat transfer on nonwetting surfaces to be an order of magnitude higher than filmwise condensation heat transfer on wetting substrates. However, the necessity for nonwetting to achieve dropwise condensation is unclear. This article reports stable dropwise condensation on a smooth, solid, hydrophilic surface (θ
= 38°) having low contact angle hysteresis (<3°). We show that the distribution of nano- to micro- to macroscale droplet sizes (about 100 nm to 1 mm) for coalescing droplets agrees well with the classical distribution on hydrophobic surfaces and elucidate that the wettability-governed dropwise-to-filmwise transition is mediated by the departing droplet Bond number. Our findings demonstrate that achieving stable dropwise condensation is not governed by surface intrinsic wettability, as assumed for the past eight decades, but rather, it is dictated by contact angle hysteresis.</description><subject>Materials Science</subject><subject>SciAdv r-articles</subject><subject>Surface Chemistry</subject><issn>2375-2548</issn><issn>2375-2548</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNpVkE1PwzAMhiMEYtPYlSPqkUuL0zRpc0FC41OaxAXOUZoPFtQ1I2kH-_d02piGbMmW_Pi19SJ0iSHDOGc3UTmp15mUP1AW7ASNc1LSNKdFdXrUj9A0xk8AwAVjFPNzNCKYU4CSjRG5D3717aJJlG-1aaPsnG-TIaNvnE4WGz0AC9c4lcQ-WKlMvEBnVjbRTPd1gt4fH95mz-n89elldjdPFeHQpYTJQsvKllYbzetKY46tLKHEOjcKiJEUQ0V1WYNSFeekpqAtMdpYVudYkgm63emu-npptDJtF2QjVsEtZdgIL534P2ndQnz4tWCcFkDZIHC9Fwj-qzexE0sXlWka2RrfR5GTArNtFAOa7VAVfIzB2MMZDGJrttiZLfZmDwtXx88d8D9ryS9rnH7e</recordid><startdate>20200110</startdate><enddate>20200110</enddate><creator>Cha, Hyeongyun</creator><creator>Vahabi, Hamed</creator><creator>Wu, Alex</creator><creator>Chavan, Shreyas</creator><creator>Kim, Moon-Kyung</creator><creator>Sett, Soumyadip</creator><creator>Bosch, Stephen A</creator><creator>Wang, Wei</creator><creator>Kota, Arun K</creator><creator>Miljkovic, Nenad</creator><general>American Association for the Advancement of Science</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-4369-1908</orcidid><orcidid>https://orcid.org/0000-0001-6225-854X</orcidid><orcidid>https://orcid.org/0000-0002-9807-9524</orcidid><orcidid>https://orcid.org/0000-0002-0866-3680</orcidid><orcidid>https://orcid.org/0000-0002-1613-3225</orcidid><orcidid>https://orcid.org/0000-0003-0913-7655</orcidid><orcidid>https://orcid.org/0000-0002-1260-2098</orcidid><orcidid>https://orcid.org/0000-0001-9061-7896</orcidid><orcidid>https://orcid.org/0000-0001-7157-7315</orcidid></search><sort><creationdate>20200110</creationdate><title>Dropwise condensation on solid hydrophilic surfaces</title><author>Cha, Hyeongyun ; Vahabi, Hamed ; Wu, Alex ; Chavan, Shreyas ; Kim, Moon-Kyung ; Sett, Soumyadip ; Bosch, Stephen A ; Wang, Wei ; Kota, Arun K ; Miljkovic, Nenad</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c390t-36a4da8f7fded9b8d191fa7071d2ec03ea51085d7b0cc8993b50df3edef6b21a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Materials Science</topic><topic>SciAdv r-articles</topic><topic>Surface Chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cha, Hyeongyun</creatorcontrib><creatorcontrib>Vahabi, Hamed</creatorcontrib><creatorcontrib>Wu, Alex</creatorcontrib><creatorcontrib>Chavan, Shreyas</creatorcontrib><creatorcontrib>Kim, Moon-Kyung</creatorcontrib><creatorcontrib>Sett, Soumyadip</creatorcontrib><creatorcontrib>Bosch, Stephen A</creatorcontrib><creatorcontrib>Wang, Wei</creatorcontrib><creatorcontrib>Kota, Arun K</creatorcontrib><creatorcontrib>Miljkovic, Nenad</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Science advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cha, Hyeongyun</au><au>Vahabi, Hamed</au><au>Wu, Alex</au><au>Chavan, Shreyas</au><au>Kim, Moon-Kyung</au><au>Sett, Soumyadip</au><au>Bosch, Stephen A</au><au>Wang, Wei</au><au>Kota, Arun K</au><au>Miljkovic, Nenad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dropwise condensation on solid hydrophilic surfaces</atitle><jtitle>Science advances</jtitle><addtitle>Sci Adv</addtitle><date>2020-01-10</date><risdate>2020</risdate><volume>6</volume><issue>2</issue><spage>eaax0746</spage><epage>eaax0746</epage><pages>eaax0746-eaax0746</pages><issn>2375-2548</issn><eissn>2375-2548</eissn><abstract>Droplet nucleation and condensation are ubiquitous phenomena in nature and industry. Over the past century, research has shown dropwise condensation heat transfer on nonwetting surfaces to be an order of magnitude higher than filmwise condensation heat transfer on wetting substrates. However, the necessity for nonwetting to achieve dropwise condensation is unclear. This article reports stable dropwise condensation on a smooth, solid, hydrophilic surface (θ
= 38°) having low contact angle hysteresis (<3°). We show that the distribution of nano- to micro- to macroscale droplet sizes (about 100 nm to 1 mm) for coalescing droplets agrees well with the classical distribution on hydrophobic surfaces and elucidate that the wettability-governed dropwise-to-filmwise transition is mediated by the departing droplet Bond number. Our findings demonstrate that achieving stable dropwise condensation is not governed by surface intrinsic wettability, as assumed for the past eight decades, but rather, it is dictated by contact angle hysteresis.</abstract><cop>United States</cop><pub>American Association for the Advancement of Science</pub><pmid>31950076</pmid><doi>10.1126/sciadv.aax0746</doi><orcidid>https://orcid.org/0000-0003-4369-1908</orcidid><orcidid>https://orcid.org/0000-0001-6225-854X</orcidid><orcidid>https://orcid.org/0000-0002-9807-9524</orcidid><orcidid>https://orcid.org/0000-0002-0866-3680</orcidid><orcidid>https://orcid.org/0000-0002-1613-3225</orcidid><orcidid>https://orcid.org/0000-0003-0913-7655</orcidid><orcidid>https://orcid.org/0000-0002-1260-2098</orcidid><orcidid>https://orcid.org/0000-0001-9061-7896</orcidid><orcidid>https://orcid.org/0000-0001-7157-7315</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Materials Science SciAdv r-articles Surface Chemistry |
| title | Dropwise condensation on solid hydrophilic surfaces |
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