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Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids

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dc.contributor.authorGuedez Mata, Rafael
dc.contributor.authorLinares Hurtado, José Ignacio
dc.contributor.authorGonzález Aguilar, José
dc.contributor.authorRomero, Manuel
dc.contributor.authorMontes Pita, María José
dc.contributor.authorD Souza, David Jonathan
dc.date.accessioned2024-05-20T11:40:40Z
dc.date.available2024-05-20T11:40:40Z
dc.date.issued2023-07-10
dc.description.abstractThis work presents a novel design of microchannel central receiver for pressurised gases and supercritical fluids in solar tower plants. It consists of a radial arrangement of vertical absorber panels that converge on the central axis of the tower. The absorber panels comprise compact structures, whose compactness is increased in one flow pass compared to the previous one, as the fluid is heated. This concept reduces radiation heat losses due to its light-trapping geometry and increases heat transfer to the thermal fluid without over penalising its pressure drop. For the receiver assessment, it has been developed a thermal resistance model characterising the fluid heating along the panel height and the temperature gradient between parallel channel rows of the compact structure across the panel thickness. Once the thermal and optical boundary conditions are defined, an optimisation analysis of the main geometrical parameters of the receiver has been accomplished. The receiver performance is evaluated by means of a global exergy efficiency referred to the solar subsystem, which computes the receiver heat losses, the fluid pressure drop and the optical efficiency of the heliostat field in which the receiver is integrated. For each parametric optimisation, the configuration that maximises this efficiency is identified.en
dc.description.versionversión final
dc.identifier.doihttp://doi.org/10.1016/j.ijthermalsci.2023.108586
dc.identifier.urihttps://hdl.handle.net/20.500.14468/12405
dc.journal.titleInternational Journal of Thermal Sciences
dc.journal.volume194
dc.language.isoen
dc.publisherElsevier
dc.relation.centerE.T.S. de Ingenieros Industriales
dc.relation.departmentIngeniería Energética
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject.keywordsSolar central receiver
dc.subject.keywordsRadial configuration
dc.subject.keywordsLight-trapping geometry
dc.subject.keywordsIncreasing compactness
dc.subject.keywordsSupercritical fluid
dc.subject.keywordsPressurised gases
dc.titleProposal of a new design of central solar receiver for pressurised gases and supercritical fluidses
dc.typejournal articleen
dc.typeartículoes
dspace.entity.typePublication
relation.isAuthorOfPublicationbe2fc6ee-eb5b-4c79-9371-512b1eb6d042
relation.isAuthorOfPublicationac1984ff-2a32-4754-83a4-8250ddaae075
relation.isAuthorOfPublication.latestForDiscoverybe2fc6ee-eb5b-4c79-9371-512b1eb6d042
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