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Solid–liquid phase equilibrium: alkane systems for low-temperature energy storage

2024-02-01Journal article Open access
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorDiogo, Hermínio P.
dc.contributor.authorFausto , Rui
dc.contributor.authorSequeira, Maria Carolina
dc.contributor.authorFernando J. P. Caetano
dc.contributor.authorFareleira, João M. N. A.
dc.contributor.authorNogueira, Bernardo A.
dc.date.accessioned2025-01-28T10:15:33Z
dc.date.available2025-01-28T10:15:33Z
dc.date.issued2024-02-01
dc.description.abstractThe thermal characterization of two binary systems of n-alkanes that can be used as Phase Change Materials (PCMs) for thermal energy storage at low temperatures is reported in this work. The construction of the solid–liquid binary phase diagrams was achieved using differential scanning calorimetry (DSC) and Raman spectroscopy. The solidus and liquidus equilibrium temperatures were determined using DSC for thirty-nine different samples, three for the pure n-alkanes and the remaining for binary mixtures at selected molar compositions and used to acquire the corresponding solid–liquid phase diagrams. The two binary systems of n-octane/n-decane (C8/C10) and n-decane/n-dodecane (C10/C12) are characterized by a eutectic behavior at low temperatures. The eutectic temperature for the system C8/C10 was found at 211.95 K and the eutectic composition appeared at the molar fraction xoctane = 0.87. For the system C10/C12, the eutectic temperature was found at 237.85 K, and the eutectic composition appeared for the molar fraction xdecane = 0.78. This work aims to fulfill the lack of available data in the existing literature, considering the potential application of these systems for low-temperature thermal energy storage. Raman spectroscopy was used to complement the DSC data for the construction of the solid–liquid phase equilibrium diagrams, enabling the identification of the solid and liquid phases of the system. Additionally, the liquidus curve of the phase diagram was successfully described using a modified freezing point depression curve as fitting equation, the absolute root mean square deviation for the data correlation of the C8/C10 and C10/C12 systems being 2.56 K and 1.22 K, respectively. Ultimately, the fitting procedure also enabled a good prediction of the eutectic point for both studied systems.eng
dc.identifier.citationSequeira, M.C.M., Nogueira, B.A., Caetano, F.J.P. et al. Solid–Liquid Phase Equilibrium: Alkane Systems for Low-Temperature Energy Storage. Int J Thermophys 45, 28 (2024). https://doi.org/10.1007/s10765-023-03317-9
dc.identifier.doi10.1007/s10765-023-03317-9
dc.identifier.urihttp://hdl.handle.net/10400.2/19414
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Nature
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UIDB/00100/2020 (https://doi.org/10.54499/UIDB/00100/2020)
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UIDB/00313/2020 (https://doi.org/10.54499/UIDB/00313/2020)
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UIDP/00100/2020 (https://doi.org/10.54499/UIDP/00100/2020)
dc.relationIMS—LA/P/0056/2020UIDB/00100/2020 (https://doi.org/10.54499/LA/P/0056/2020)
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UI/BD/152239/2021 (https://doi.org/10.54499/UI/BD/152239/2021)
dc.relation.hasversionhttps://doi.org/10.1007/s10765-023-03317-9
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAlkanes
dc.subjectBinary phase diagram
dc.subjectEnergy storage
dc.subjectEutectic
dc.subjectPhase change material (PCM)
dc.titleSolid–liquid phase equilibrium: alkane systems for low-temperature energy storageeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue28
oaire.citation.titleInternational Journal of Thermophysics
oaire.citation.volume45
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMartins Ribeiro da Silva Lourenço
person.familyNameSequeira
person.familyNameCaetano
person.familyNameFareleira
person.familyNameNogueira
person.givenNameRui Fausto
person.givenNameMaria Carolina
person.givenNameFernando J. P.
person.givenNameJoão
person.givenNameBernardo
person.identifierhttps://scholar.google.pt/citations?user=c9WkdtEAAAAJ&hl=pt-PT
person.identifier1116510
person.identifier.ciencia-idC214-FA2C-778B
person.identifier.ciencia-idFF16-CEAC-461C
person.identifier.ciencia-idDE17-708E-317F
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.ciencia-id7A12-AA7B-FD3C
person.identifier.orcid0000-0002-8264-6854
person.identifier.orcid0000-0002-9746-2281
person.identifier.orcid0000-0002-6821-1694
person.identifier.orcid0000-0002-8442-9386
person.identifier.orcid0000-0002-1756-377X
person.identifier.ridH-8325-2012
person.identifier.ridF-1299-2016
person.identifier.scopus-author-id7004333128
person.identifier.scopus-author-id57209026585
person.identifier.scopus-author-id7004474824
person.identifier.scopus-author-id6603840268
person.identifier.scopus-author-id56316468600
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