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Revised receiver efficiency of molten-salt power towers

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sosteniblees
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorRodríguez Sánchez, María de los Reyes
dc.contributor.authorSánchez González, Alberto
dc.contributor.authorSantana Santana, Domingo José
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2021-04-20T08:16:07Z
dc.date.available2021-04-20T08:16:07Z
dc.date.issued2015-12
dc.description.abstractThe demonstration power plant Solar Two was the pioneer design of a molten-salt power tower. In the report "Final Test and Evaluation Results from the Solar Two Project" (Pacheco, 2002, [151) the efficiencies of the three main subsystems: heliostats, receiver and power block were measured or estimated. The efficiency of the global plant and the power block could be obtained with confidence, whereas the efficiencies of the heliostat field and the receiver could only be estimated because the solar flux reflected by the heliostats and intercepted by the receiver cannot be measured. The receiver efficiency was estimated using the Power-On Method. The authors themselves highlighted that this method contain an important assumption: the temperature distribution on the receiver surface is independent of the incident power level. This assumption is equivalent to have a Blot number much smaller than one for the solar receivers operation, fixed inlet and outlet salt temperature. For Solar Two reported data the hot number is of order unity and then the external tube temperature depends on the receiver load; and the thermal losses vary linearly with the incident solar flux rather than constant. Besides, our results show that receiver efficiency is around 76% for full load and 69% for half load instead of 87% and 80% reported when external tube temperature was assumed to be independent on the incident power.en
dc.format.extent9
dc.identifier.bibliographicCitationRodriguez-Sanchez, M. R., Sanchez-Gonzalez, A. & Santana, D. (2015). Revised receiver efficiency of molten-salt power towers. Renewable and Sustainable Energy Reviews, 52, pp. 1331–1339.en
dc.identifier.doihttps://doi.org/10.1016/j.rser.2015.08.004
dc.identifier.issn1364-0321
dc.identifier.publicationfirstpage1331
dc.identifier.publicationlastpage1339
dc.identifier.publicationtitleRenewable and Sustainable Energy Reviewsen
dc.identifier.publicationvolume52
dc.identifier.urihttps://hdl.handle.net/10016/32422
dc.identifier.uxxiAR/0000017619
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. ENE2012-34255es
dc.rights© 2015 Elsevier Ltd.
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaEnergías Renovableses
dc.subject.otherSolar receiveren
dc.subject.otherMolten salten
dc.subject.otherThermal efficiencyen
dc.subject.otherBiot numberen
dc.subject.otherThermal Lossesen
dc.titleRevised receiver efficiency of molten-salt power towersen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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