Hot Corrosion Behavior of Slurry Sprayed Aluminide Coatings in a Simulated Dynamic Molten Carbonate Environment [Comunicação oral]

Audigié, Pauline; Rodríguez Catela, Sergio; Agüero, Alina; Pedrosa, Fátima; Paiva Luís, Teresa; Cunha Diamantino, Teresa

http://hdl.handle.net/10400.9/4003

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Authors

Audigié, Pauline

Rodríguez Catela, Sergio

Agüero, Alina

Pedrosa, Fátima

Paiva Luís, Teresa

Cunha Diamantino, Teresa

Abstract(s)

ABSTRACT: One of the key challenges associated with the use of molten salts in Concentrated Solar Power (CSP) plants is to reduce or even suppress corrosion phenomena occurring at elevated temperatures. Molten nitrate mixtures are currently seen as the most viable storage medium for Thermal Energy Storage. But the upper temperature limit of the currently used “Solar Salt” is restricted by salt decomposition at ~580ºC. Prieto et al. estimated that increasing the temperature to 650ºC could increase the solar-to-electric conversion up to 18.5%, so alternative salts operating at higher temperature are required. Molten carbonates which are less corrosive and allow an operation up to 800ºC are an appealing breakthrough for future CSP plants.

Keywords

Materials High-temperature corrosion Molten carbonates Concentrated solar power Thermal energy storage

URI

http://hdl.handle.net/10400.9/4003

Citation

Audigié, P... [et.al.] - Hot Corrosion Behavior of Slurry Sprayed Aluminide Coatings in a Simulated Dynamic Molten Carbonate Environment. In: EUROCORR 2022: European Corrosion Congress, Berlin, Germany, 28 Aug-1 Sept., 2022.