Publicación:
Optimization of a New Design of Molten Salt-to-CO2 Heat Exchanger using Exergy Destruction Minimization

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dc.contributor.authorLinares Hurtado, José Ignacio
dc.contributor.authorMoratilla, Beatriz Yolanda
dc.contributor.authorMontes Pita, María José
dc.contributor.authorBarbero Fresno, Rubén
dc.date.accessioned2024-05-20T11:41:20Z
dc.date.available2024-05-20T11:41:20Z
dc.date.issued2020-08-08
dc.description.abstractOne of the ways to make cost-competitive electricity, from concentrated solar thermal energy, is increasing the thermoelectric conversion efficiency. To achieve this objective, the most promising scheme is a molten salt central receiver, coupled to a supercritical carbon dioxide cycle. A key element to be developed in this scheme is the molten salt-to-CO2 heat exchanger. This paper presents a heat exchanger design that avoids the molten salt plugging and the mechanical stress due to the high pressure of the CO2, while improving the heat transfer of the supercritical phase, due to its compactness with a high heat transfer area. This design is based on a honeycomb-like configuration, in which a thermal unit consists of a circular channel for the molten salt surrounded by six smaller trapezoidal ducts for the CO2. Further, an optimization based on the exergy destruction minimization has been accomplished, obtained the best working conditions of this heat exchanger: a temperature approach of 50 °C between both streams and a CO2 pressure drop of 2.7 bar.en
dc.description.versionversión final
dc.identifier.doihttps://doi.org/10.3390/e22080883
dc.identifier.urihttps://hdl.handle.net/20.500.14468/12421
dc.language.isoen
dc.publisherMDPI
dc.relation.centerE.T.S. de Ingenieros Industriales
dc.relation.departmentIngeniería Energética
dc.rightsAtribución 4.0 Internacional
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0
dc.subject.keywordssolar thermal power plants
dc.subject.keywordssupercritical CO2 cycles
dc.subject.keywordsMS-to-CO2 heat exchanger
dc.subject.keywordsthermo-economic optimization
dc.subject.keywordsexergy destruction minimization
dc.titleOptimization of a New Design of Molten Salt-to-CO2 Heat Exchanger using Exergy Destruction Minimizationes
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublicationbe2fc6ee-eb5b-4c79-9371-512b1eb6d042
relation.isAuthorOfPublicationfab0fd2f-585c-4864-97ec-1d58be32f955
relation.isAuthorOfPublication.latestForDiscoverybe2fc6ee-eb5b-4c79-9371-512b1eb6d042
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