Optical characterization and thermal aging tests are performed on a sputter-deposited coating, consisting of SiO2/Cr2O3/Cr/Cr2O3 layers, designed and developed as a selective solar absorber to be used for unconcentrated solar thermal applications. Both measurements are performed by using a home-made apparatus, which mimics a flat plate collector under high vacuum. A Performance Criterion (PCη(T)), based on absorber efficiency is proposed, and a forecast of service lifetime is obtained. As a result of the thermal aging tests, the selective solar absorber under study appears to be highly efficient at mid temperatures (up to 573 K) and thermally stable at temperatures (up to 690 K).

Characterization and thermal aging tests of Cr based multilayer for unconcentrated solar thermal applications / Caldarelli, A.; D'Alessandro, C.; De Maio, D.; De Luca, D.; Gaudino, E.; Musto, M.; Di Gennaro, E.; Russo, R.. - In: THIN SOLID FILMS. - ISSN 0040-6090. - 735:(2021). [10.1016/j.tsf.2021.138870]

Characterization and thermal aging tests of Cr based multilayer for unconcentrated solar thermal applications

Caldarelli A.
;
D'Alessandro C.;De Maio D.;De Luca D.;Gaudino E.;Musto M.;Di Gennaro E.;
2021

Abstract

Optical characterization and thermal aging tests are performed on a sputter-deposited coating, consisting of SiO2/Cr2O3/Cr/Cr2O3 layers, designed and developed as a selective solar absorber to be used for unconcentrated solar thermal applications. Both measurements are performed by using a home-made apparatus, which mimics a flat plate collector under high vacuum. A Performance Criterion (PCη(T)), based on absorber efficiency is proposed, and a forecast of service lifetime is obtained. As a result of the thermal aging tests, the selective solar absorber under study appears to be highly efficient at mid temperatures (up to 573 K) and thermally stable at temperatures (up to 690 K).
2021
Characterization and thermal aging tests of Cr based multilayer for unconcentrated solar thermal applications / Caldarelli, A.; D'Alessandro, C.; De Maio, D.; De Luca, D.; Gaudino, E.; Musto, M.; Di Gennaro, E.; Russo, R.. - In: THIN SOLID FILMS. - ISSN 0040-6090. - 735:(2021). [10.1016/j.tsf.2021.138870]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/859651
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