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dc.contributor.authorMartinez-Urrutia, Asier
dc.contributor.authorFernández de Arroiabe, Peru
dc.contributor.authorRamirez, Miguel
dc.contributor.authorMartinez-Agirre, Manex
dc.contributor.authorMounir Bou-Ali, M.
dc.date.accessioned2018-06-12T10:49:05Z
dc.date.available2018-06-12T10:49:05Z
dc.date.issued2018-11
dc.identifier.issn0140-7007en
dc.identifier.urihttp://hdl.handle.net/11556/577
dc.description.abstractWetting surface is a very important issue for the design of absorption applications and heat exchangers. The contact angle is deemed essential in wettability studies; However, LiBr aqueous solution contact angle studies are limited. This work analyses the contact angle of LiBr aqueous solution in the range of 0–55% mass fraction on different material surfaces: copper, aluminum, stainless-steel and polytetrafluoroethylene (PTFE) under atmospheric conditions. A sessile drop technique was used for measuring the contact angles, and a linear relation between solution surface tension and contact angle is observed in the tested materials. The study of three metals show hydrophilic performance (θ < 90°), whereas the PTFE shows hydrophobic performance. Additionally, the effect of the selection of the material, and consequent effect on the contact angle, on the minimum wetting rate and film thicknesses is presented under the working conditions of the absorption technologies. From the wettability point of view, the results show that using stainless-steel and aluminum leads to a slightly better performance than a copper made heat exchanger.en
dc.description.sponsorshipThe authors would like to thank the support of the project Indus3Es: Industrial Energy and Environmental Efficiency funded by the Horizon 2020 framework of the European Union, Project No. 680738. The authors would also like to express their gratitude for the support of MICRO4FAB and BEROA–GO 3.0 and Research Groups (No. IT009-16).en
dc.language.isoengen
dc.publisherElsevier Ltden
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleContact angle measurement for LiBr aqueous solutions on different surface materials used in absorption systemsen
dc.typearticleen
dc.identifier.doi10.1016/j.ijrefrig.2018.05.041en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/680738/EU/ndustrial Energy and Environment Efficiency/INDUS3ESen
dc.rights.accessRightsopenAccessen
dc.subject.keywordsContact-angleen
dc.subject.keywordsSessile-drop-testen
dc.subject.keywordsAbsorption technologiesen
dc.subject.keywordsFalling-filmen
dc.subject.keywordsWettingen
dc.journal.titleInternational Journal of Refrigerationen
dc.page.final188
dc.page.initial182
dc.volume.number95


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    Attribution 4.0 InternationalExcept where otherwise noted, this item's license is described as Attribution 4.0 International