Transient thermo-mechanical analysis of steam generators for solar tower plants

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Show simple item record González Gómez, Pedro Ángel Gómez Hernández, Jesús Villa Briongos, Javier Santana Santana, Domingo José 2021-04-13T08:57:22Z 2021-04-13T08:57:22Z 2018-02-15
dc.identifier.bibliographicCitation González-Gómez, P. A., Gómez-Hernández, J., Briongos, J. V. & Santana, D. (2018). Transient thermo-mechanical analysis of steam generators for solar tower plants. Applied Energy, 212, pp. 1051–1068.
dc.identifier.issn 0306-2619
dc.description.abstract In solar power tower plants, fast start-ups and/or load changes are mandatory to increase the power plant dispatchability. The high temperatures of the working fluids and the partial-load operation will reduce the lifetime of the thick-walled components at the steam generator. Therefore, a proper heat exchanger design should consider the stress evolution during the transient operation of the plant. This work addresses, for the first time, a methodology to determine the dynamic behavior of all heat exchangers of a steam generator train. The methodology proposed here is a powerful tool for the design of solar power plants. The stress analysis model identifies the most important components of the steam generation train during transient operation. The methodology consists of the combination of analytical models to obtain the coupled response of the steam generation train from the following dynamic variables: temperature, pressure and stress. An example of this methodology is presented for two start-up initial conditions: the assumption of non-isothermal and isothermal temperature profiles of the heat exchangers. A steam generator train based on conventional shell and tube heat exchangers is analyzed. The analysis shows that the non-isothermal condition takes approximately 50 min to reach nominal conditions, whereas the isothermal condition takes approximately 110 min, requiring 600 tons and 716 tons of hot salt to perform the start-up procedure, respectively.
dc.format.extent 18
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2017 Elsevier Ltd.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Solar Power Tower Plant
dc.subject.other Steam generator
dc.subject.other Start-up procedures
dc.subject.other Thermal stress analysis
dc.title Transient thermo-mechanical analysis of steam generators for solar tower plants
dc.type article
dc.subject.eciencia Energías Renovables
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. ENE2015-69486-R
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1051
dc.identifier.publicationlastpage 1068
dc.identifier.publicationtitle Applied Energy
dc.identifier.publicationvolume 212
dc.identifier.uxxi AR/0000020932
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.affiliation.dpto UC3M. Departamento de Ingeniería Térmica y de Fluidos
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sostenible
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticos
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