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Designing a flat beam-down linear Fresnel reflector

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorTaramona Fernández, Sebastián
dc.contributor.authorGonzález Gómez, Pedro Ángel
dc.contributor.authorVilla Briongos, Javier
dc.contributor.authorGómez Hernández, Jesús
dc.contributor.funderComunidad de Madrides
dc.contributor.funderUniversidad Carlos III de Madrides
dc.date.accessioned2023-09-29T12:22:15Z
dc.date.available2023-09-29T12:22:15Z
dc.date.issued2022-03-01
dc.description.abstractA linear beam-down solar field consists of two reflections that concentrate the solar irradiation on heavy materials located on the ground. Several rows of linear Fresnel reflectors, which have the same width, aim the solar irradiation to a secondary mirror with a hyperbolic shape that redirects the solar concentration towards the ground receiver. This paper overcomes the main limitation of the previously proposed hyperbolic secondary reflector. A new secondary reflector composed by several fixed flat mirrors located at the same height is proposed. A model to calculate the optimal layout of this novel solar field, as well as the efficiency and concentration, is developed and validated against a Monte-Carlo Ray-Tracing software, obtaining relative errors lower than 15%. Two new dimensionless parameters are proposed to facilitate the design of the flat beam-down linear Fresnel reflector. The concentration, optical efficiency and receiver width can be easily obtained, without performing any simulation, as a function of the dimensionless parameters. This novel solar field can achieve concentration ratios of up to 31 and optical efficiencies of up to 60%, obtaining similar concentrations with better optical efficiency than a field using a hyperbolic reflector.en
dc.description.sponsorshipThe authors wish to thank the support for the research project INTECSOLARIS-CM-UC3M has been funded by the call "Programa de apoyo a la realización de proyectos interdisciplinares de I + D para jóvenes investigadores de la Universidad Carlos III de Madrid 2019-2020" under the frame of the "Convenio Plurianual Comunidad de Madrid - Universidad Carlos III de Madrid". The authors wish to thank "Comunidad de Madrid" for its support to the ACES2030-CM Project (S2018/EMT-4319) through the Program of R&D activities between research groups in Technologies 2018, co-financed by European Structural Funds.en
dc.format.extent16es
dc.identifier.bibliographicCitationTaramona, S., González-Gómez, P., Briongos, J. V., & Gómez-Hernández, J. (2022). Designing a flat beam-down linear fresnel reflector. Renewable Energy, 187, 484-499.en
dc.identifier.doihttps://doi.org/10.1016/j.renene.2022.01.104
dc.identifier.issn0960-1481
dc.identifier.publicationfirstpage484es
dc.identifier.publicationlastpage499es
dc.identifier.publicationtitleRenewable Energyen
dc.identifier.publicationvolume187es
dc.identifier.urihttps://hdl.handle.net/10016/38487
dc.identifier.uxxiAR/0000030666
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDComunidad de Madrid. S2018/EMT-4319es
dc.relation.projectIDAT-2022es
dc.rights© 2022 The Authors. Published by Elsevier Ltd.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaEnergías Renovableses
dc.subject.ecienciaIngeniería Industriales
dc.subject.otherBeam-down linear fresnel reflectoren
dc.subject.otherFlat secondary reflectoren
dc.subject.otherSolar field optimizationen
dc.subject.otherFlux concentrationen
dc.subject.otherOptical efficiencyen
dc.titleDesigning a flat beam-down linear Fresnel reflectoren
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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