Dynamic performance and stress analysis of the steam generator of parabolic trough solar power plants

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dc.contributor.author González Gómez, Pedro Ángel
dc.contributor.author Gómez Hernández, Jesús
dc.contributor.author Ferruzza, D.
dc.contributor.author Haglind, F.
dc.contributor.author Santana Santana, Domingo José
dc.date.accessioned 2021-04-14T07:48:23Z
dc.date.available 2021-04-14T07:48:23Z
dc.date.issued 2019-01-25
dc.identifier.bibliographicCitation González-Gómez, P. A., Gómez-Hernández, J., Ferruzza, D., Haglind, F. & Santana, D. (2019). Dynamic performance and stress analysis of the steam generator of parabolic trough solar power plants. Applied Thermal Engineering, 147, pp. 804–818.
dc.identifier.issn 1359-4311
dc.identifier.uri http://hdl.handle.net/10016/32352
dc.description.abstract The thermal stress on thick-walled components, such as tubesheets and steam drums, limits both the temperature ramp-up rates and the temperature differences between outer and inner walls. The cyclic operation of concentrating solar power plants may lead to fatigue damage. For these reasons, a stress analysis of the steam generator is required to assure its lifetime. A methodology is presented for the thermo-mechanical analysis of the steam generator for a parabolic trough power plant. This methodology consists of coupling transient thermodynamic and stress models of the heat exchangers in order to calculate the stress. Besides the heat exchanger models, a transient model for a TEMA H heat exchanger is proposed. Finite element simulations are carried out to calculate the deviations of the simplified analytical models. In this way, a powerful tool that allows the analysis and optimization of the steam generator operation is proposed. The results suggest that U-tube tubesheets are exposed to high thermal stresses on the no-tube-lane zone, especially in the reheater. The steam generator start-up can be accomplished in around 45 min using 36.4 MWh(th). Furthermore, the TEMA X evaporator presents a thermal stress reduction of 35% compared to the kettle evaporator.
dc.format.extent 15
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2018 Elsevier Ltd.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Steam generator
dc.subject.other Start-up
dc.subject.other Thermal stress
dc.subject.other Parabolic trough power plant
dc.subject.other Solar thermal power
dc.title Dynamic performance and stress analysis of the steam generator of parabolic trough solar power plants
dc.type article
dc.subject.eciencia Energías Renovables
dc.identifier.doi https://doi.org/10.1016/j.applthermaleng.2018.10.126
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. ENE2015-69486-R
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 804
dc.identifier.publicationlastpage 818
dc.identifier.publicationtitle Applied Thermal Engineering
dc.identifier.publicationvolume 147
dc.identifier.uxxi AR/0000022963
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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