Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9601
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dc.contributor.authorYenigün, Onur-
dc.contributor.authorBarışık, Murat-
dc.date.accessioned2020-07-25T22:17:43Z-
dc.date.available2020-07-25T22:17:43Z-
dc.date.issued2019-
dc.identifier.issn1556-7265-
dc.identifier.issn1556-7273-
dc.identifier.urihttps://doi.org/10.1080/15567265.2019.1628136-
dc.identifier.urihttps://hdl.handle.net/11147/9601-
dc.description.abstractNanoscale heat transfer between two parallel silicon slabs filled with deionized water was studied under varying electric field in heat transfer direction. Two oppositely charged electrodes were embedded into the silicon walls to create a uniform electric field perpendicular to the surface, similar to electrowetting-on-dielectric technologies. Through the electrostatic interactions, (i) surface charge altered the silicon/water interface energy and (ii) electric field created orientation polarization of water by aligning dipoles to the direction of the electric field. We found that the first mechanism can manipulate the interface thermal resistance and the later can change the thermal conductivity of water. By increasing electric field, Kapitza length substantially decreased to 1/5 of its original value due to enhanced water layering, but also the water thermal conductivity lessened slightly since water dynamics were restricted; in this range of electric field, heat transfer was doubled. With a further increase of the electric field, electro-freezing (EF) developed as the aligned water dipoles formed a crystalline structure. During EF (0.53 V/nm), water thermal conductivity increased to 1.5 times of its thermodynamic value while Kapitza did not change; but once the EF is formed, both Kapitza and conductivity remained constant with increasing electric field. Overall, the heat transfer rate increased 2.25 times at 0.53 V/nm after which it remains constant with further increase of the electric field.en_US
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.relation.ispartofNanoscale and Microscale Thermophysical Engineeringen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNanoscale heat transferen_US
dc.subjectElectro-wettingen_US
dc.subjectElectro-freezingen_US
dc.subjectKapitza resistanceen_US
dc.subjectPhonon transporten_US
dc.subjectMolecular dynamicsen_US
dc.titleElectric field controlled heat transfer through silicon and nano-confined wateren_US
dc.typeArticleen_US
dc.institutionauthorYenigün, Onur-
dc.institutionauthorBarışık, Murat-
dc.departmentİzmir Institute of Technology. Mechanical Engineeringen_US
dc.identifier.volume23en_US
dc.identifier.issue4en_US
dc.identifier.startpage304en_US
dc.identifier.endpage316en_US
dc.identifier.wosWOS:000472928800001en_US
dc.identifier.scopus2-s2.0-85067662617en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1080/15567265.2019.1628136-
dc.relation.doi10.1080/15567265.2019.1628136en_US
dc.coverage.doi10.1080/15567265.2019.1628136en_US
dc.identifier.wosqualityQ1-
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextopen-
crisitem.author.dept03.10. Department of Mechanical Engineering-
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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