Compatibility of materials for macroencapsulation of inorganic phase change materials: experimental corrosion study

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dc.contributor.authorUshak, Svetlana
dc.contributor.authorMarín, Paula E.
dc.contributor.authorGalazutdinova, Yana
dc.contributor.authorCabeza, Luisa F.
dc.contributor.authorFarid, Mohammed M.
dc.contributor.authorGrágeda, Mario
dc.date.accessioned2016-11-07T09:37:37Z
dc.date.available2018-08-25T22:28:36Z
dc.date.issued2016
dc.description.abstractThe potential of the use of salt hydrates MgCl2·6H2O (bischofite) with typical impurities of the Salar de Atacama as a thermal energy storage material was evaluated with special attention to its corrosion behavior. Bischofite behavior is compared with that of commercial salt MgCl2·6H2O. The corrosion tests were conducted with metal sheets (copper, aluminum and stainless steel) partially immersed in molten salt hydrates at a temperature of 120 °C during 1500 h. The results showed minimum corrosion on all the immersed surfaces of all the metals. However, very sever corrosion was observed at the salt/air interface due to a known phenomenon of oxygen enhanced corrosion usually found even with water at ambient temperature. The corrosion products were determined with scanning electron microscopy (SEM-EDX) and X-ray diffraction (XRD) technique. For salts hydrates bischofite and MgCl2·6H2O, the results show the formation of cuprite (Cu2O) and hematite (Fe2O3) on copper and stainless steel samples, respectively. For all cases studied in the present work, several chloride compounds were identified as corrosion products.ca_ES
dc.description.sponsorshipThe authors would like to acknowledge the collaboration of the company SALMAG. The authors acknowledge to CONICYT/FONDAP No. 15110019, and the Education Ministry of Chile Grant PMI ANT 1201 for the financial support. P. Marin thanks fellowship CONICYT-PCHA/doctorado nacional/2015-21151359. Y. Galazutdinova thanks fellowship CONICYT-PCHA No. 63140052. This work was partially funded by the Spanish project ENE2011-22722. Dr. Luisa F. Cabeza would like to acknowledge the Generalitat de Catalunya for the quality recognition 2014-SGR-123. The research leading to these results has received funding from the European Commission Seventh Framework Programme(FP/2007-2013) under grant agreement No. PIRSES-GA-2013-610692 (INNOSTORAGE).ca_ES
dc.identifier.doihttps://doi.org/10.1016/j.applthermaleng.2016.06.171
dc.identifier.idgrec024727
dc.identifier.issn1359-4311
dc.identifier.urihttp://hdl.handle.net/10459.1/58398
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relationMICINN/PN2008-2011/ENE2011-22722
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1016/j.applthermaleng.2016.06.171ca_ES
dc.relation.ispartofApplied Thermal Engineering, 2016, vol. 107, p. 410-419ca_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/610692
dc.rightscc-by-nc-nd, (c) Elsevier, 2016ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPhase change materialsca_ES
dc.subjectSalt hydratesca_ES
dc.subjectInterface corrosionca_ES
dc.subjectBischofiteca_ES
dc.titleCompatibility of materials for macroencapsulation of inorganic phase change materials: experimental corrosion studyca_ES
dc.typearticleca_ES
dc.type.versionacceptedVersionca_ES
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