A procedure to predict solar receiver damage during transient conditions

M. Laporte-Azcué, P.A. González-Gómez, M.R. Rodríguez-Sánchez and D. Santana

Renewable and Sustainable Energy Reviews, 2022, vol. 154, issue C

Abstract: The successful deployment of solar-power-towers lies in the reliable design of solar receivers, assuring the lifetime under high heat flux and cloud passages. Two main damage mechanisms appear during central-receiver operation: creep, during hold times at high temperatures and stresses, and fatigue, caused by transient operation. This work aims to determine the extent of each damage on a Haynes 230 receiver. It is analyzed using transient DNI of a whole year, controlling the operation to guarantee the receiver preheat and minimize the start-ups. The molten-salt flow-rate during cloud passages or hazy days remains as the clear-sky scheduled one, to avoid tube overheat, preventing salt degradation and stress reset, when the clouds cleared.

Keywords: External central receiver; Creep-fatigue; Lifetime; Transient operation; Clustered days (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.rser.2021.111905

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