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Non-conventional tube shapes for lifetime extend of solar external receivers

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorRodríguez Sánchez, María de los Reyes
dc.contributor.authorLaporte Azcué, Marta
dc.contributor.authorMontoya, Andrés
dc.contributor.authorHernández Jiménez, Fernando
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2023-09-29T11:09:38Z
dc.date.available2023-09-29T11:09:38Z
dc.date.issued2022-03
dc.description.abstractIn this work, several novel tube shapes of solar tubular receivers that differ from the classical circular shape are analysed aiming to reduce the stresses of the receiver tubes, without penalizing its thermal efficiency. The analysis is performed using analytical thermal and mechanical models of the literature adapted for their use with non-circular tube shapes, verifying the assumptions made with FEM simulations due to the lack of experimental data available. Among the geometries studied, the results show that oval cross-section tubes improve the thermal efficiency of the receiver at the expense of increasing the stresses considerably. Ovoidal tubes show worse thermal and mechanical behaviour when the frontal part becomes peakier. Semicircle tubes reduce the stress by 10.9%, while keeping constant or even slightly improving the thermal performance. The last ones, increase the lifetime of the receiver and reduces the receiver costs if the manufacturing of the new geometries does no overpass 3.5 times the present price of production of the circular tubes. Therefore, the use of asymmetric cross-section tubes with low rear-front surface ratios, and smooth front surfaces can be considered a good alternative for substituting traditional circular cross-section tubes in central receivers.en
dc.description.sponsorshipThis research is partially funded by the Spanish government under the project RTI2018-096664-B-C21 (MICINN/FEDER, UE) and by the Madrid Government (Comunidad de Madrid) under the Multiannual Agreement with UC3M in the line of "Fostering Young Doctors Research" (RETOrenovable-CM-UC3M), and in the context of the V PRICIT (Regional Programme of Research and Technological Innovation).en
dc.format.extent12
dc.identifier.bibliographicCitationRodríguez-Sánchez, M. R., Laporte-Azcué, M., Montoya, A., & Hernández-Jiménez, F. (2022). Non-conventional tube shapes for lifetime extend of solar external receivers. Renewable Energy, 186, 535-546.en
dc.identifier.doihttps://doi.org/10.1016/j.renene.2022.01.015
dc.identifier.issn0960-1481
dc.identifier.publicationfirstpage535
dc.identifier.publicationlastpage546
dc.identifier.publicationtitleRenewable Energyen
dc.identifier.publicationvolume186
dc.identifier.urihttps://hdl.handle.net/10016/38485
dc.identifier.uxxiAR/0000030294
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. RTI2018-096664-B-C21es
dc.relation.projectIDComunidad de Madrid. RETOrenovable-CM-UC3Mes
dc.relation.projectIDAT-22
dc.rights© 2022 The Author(s).en
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.ecienciaEnergías Renovableses
dc.subject.ecienciaFísicaes
dc.subject.ecienciaIngeniería Industriales
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaQuímicaes
dc.subject.otherTubular solar receiveren
dc.subject.otherMechanical modelen
dc.subject.otherThermal modelen
dc.subject.otherAsymmetric geometryen
dc.titleNon-conventional tube shapes for lifetime extend of solar external receiversen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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