Molten salt-based nanofluids as efficient heat transfer and storage materials at high temperatures. An overview of the literature

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dc.contributor.authorMuñoz-Sánchez, Belén
dc.contributor.authorNieto-Maestre, Javier
dc.contributor.authorIparraguirre-Torres, Iñigo
dc.contributor.authorGarcía-Romero, Ana
dc.contributor.authorSala-Lizarraga, Jose M.
dc.contributor.institutionTecnalia Research & Innovation
dc.contributor.institutionVALORIZACIÓN DE RESIDUOS
dc.date.accessioned2024-07-24T12:09:56Z
dc.date.available2024-07-24T12:09:56Z
dc.date.issued2018-02
dc.descriptionPublisher Copyright: © 2017 Elsevier Ltd
dc.description.abstractThe research in the field of nanofluids has experienced considerable advances from their discovery two decades ago. These liquid mixtures with tiny quantities (< 10% in volume) of nanometric size solid particles (< 100 nm) in suspension have a great potential for thermal management applications due to their excellent thermophysical properties. The so-called traditional nanofluids (based on water or industrial oils) have been extensively studied so far with a special focus on the enhancement observed in their thermal conductivity. Experimental results, mechanisms and models regarding these materials have been published and reviewed on a large number of articles. A new kind of nanofluids based on inorganic salts has been developed in the last few years with the aim of storing and transferring thermal energy at high temperatures. These Molten Salt-Based Nanofluids (MSBNFs) are characterized by a considerable increase of their specific heat due to the presence of particles at the nanometric scale. On the contrary, the specific heat of the traditional nanofluids is lower compared to that of the base fluid. This surprising behaviour has caused an opened debate in the scientific community, which is currently dealing with these controversial results and the lack of theories and models for these materials. This article reviews the published scientific contributions on MSBNFs. The influence of several facts on the specific heat is deeply analysed, as well as the synthesis methods. Other important aspects related to the behaviour and development of the MSBNFs such as the stability of the NanoParticles (NPs) in the molten salt, their latent heat, viscosity and thermal conductivity, have also been reviewed in this article. Finally, the difficulties and challenges concerning the further development of these materials have been summarized and the main conclusions have been listed.en
dc.description.sponsorshipThis work was supported by the University of the Basque Country UPV/EHU (Zabalduz 2012 research program, Ph.D. thesis of Belén Muñoz Sánchez); the Basque Governement (Etortek 2014 project on thermal storage) and the MInisterio de Economía y Competitividad, MINECO ( ENE2015-71083-R ).
dc.description.statusPeer reviewed
dc.format.extent22
dc.identifier.citationMuñoz-Sánchez , B , Nieto-Maestre , J , Iparraguirre-Torres , I , García-Romero , A & Sala-Lizarraga , J M 2018 , ' Molten salt-based nanofluids as efficient heat transfer and storage materials at high temperatures. An overview of the literature ' , Renewable and Sustainable Energy Reviews , vol. 82 , pp. 3924-3945 . https://doi.org/10.1016/j.rser.2017.10.080
dc.identifier.doi10.1016/j.rser.2017.10.080
dc.identifier.issn1364-0321
dc.identifier.urihttps://hdl.handle.net/11556/4025
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85032806216&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofRenewable and Sustainable Energy Reviews
dc.relation.projectIDEdge Hill University, EHU
dc.relation.projectIDEusko Jaurlaritza
dc.relation.projectIDMinisterio de Economía y Competitividad, MINECO, ENE2015-71083-R
dc.relation.projectIDEuskal Herriko Unibertsitatea, EHU
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsConcentrated solar power
dc.subject.keywordsMolten salt
dc.subject.keywordsNanofluid
dc.subject.keywordsNanoparticles
dc.subject.keywordsSpecific heat capacity
dc.subject.keywordsThermal energy storage
dc.subject.keywordsRenewable Energy, Sustainability and the Environment
dc.subject.keywordsSDG 7 - Affordable and Clean Energy
dc.titleMolten salt-based nanofluids as efficient heat transfer and storage materials at high temperatures. An overview of the literatureen
dc.typejournal article
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