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Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes

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dc.contributor.authorStojceska, V.
dc.contributor.authorReay, David A.
dc.contributor.authorMontes Pita, María José
dc.contributor.authorIbarra Mollá, Mercedes
dc.date.accessioned2024-05-20T11:40:31Z
dc.date.available2024-05-20T11:40:31Z
dc.date.issued2023-09-30
dc.description.abstractThis work is focused on the linear Fresnel technology to supply solar heat for industrial processes, proposing a new microchannel receiver design for pressurised gases. This design consists of two absorber panels converging at the focal line of the Fresnel system; each of these panels consists of a compact core fin structure attached to both front and back plates. The fluid flows through the receiver along its length in several passes, so that the compactness is constant and greater than in the previous pass. This arrangement improves heat transfer and, therefore, the cooling of the more thermally stressed areas of the panel, without over penalising the pressure drop. A thermal resistance model has been formulated to quantify the fluid heating along the panel length and the thermal gradient along the panel thickness. This model has been used to perform a thermo-exergy optimisation based on several characteristic parameters: the aperture half-angle of the cavity shaped by the two converging panels; and the channels dimensions in each pass of the panel. For each of these parameters, a maximum exergy efficiency has been obtained accounting for the receiver heat losses, the fluid pressure drop and the optical performance of the primary mirror field.en
dc.description.versionversión final
dc.identifier.doi10.1016/j.csite.2023.103559
dc.identifier.issn2214-157X
dc.identifier.urihttps://hdl.handle.net/20.500.14468/12401
dc.journal.issueNovember 2023
dc.journal.titleCase Studies in Thermal Engineering
dc.journal.volume51
dc.publisherElsevier
dc.relation.centerE.T.S. de Ingenieros Industriales
dc.relation.departmentIngeniería Energética
dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subject.keywordsLinear fresnel reflector
dc.subject.keywordsMicrochannel receiver
dc.subject.keywordsSolar heat for industrial processes
dc.subject.keywordsConvergent absorber panels
dc.subject.keywordsLight-trapping geometry
dc.subject.keywordsPressurised gases
dc.titleProposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processeses
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublicationbe2fc6ee-eb5b-4c79-9371-512b1eb6d042
relation.isAuthorOfPublicationf8b8cb43-4a9e-4e7b-8071-7bcfb9b60864
relation.isAuthorOfPublication.latestForDiscoverybe2fc6ee-eb5b-4c79-9371-512b1eb6d042
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