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Título: | Novel Mo-Si3N4 based selective coating for high temperature concentrating solar power applications |
Autor: | Céspedes, Eva CSIC ORCID; Wirz, Men; Sánchez-García, J. A. CSIC; Álvarez-Fraga, Laura; Escobar Galindo, R.; Prieto, Carlos CSIC ORCID | Palabras clave: | Selective coating material Solar absorber cermets |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | Solar Energy Materials and Solar Cells 122: 217-225 (2014) | Resumen: | A novel selective coating material based on Mo-Si3N4 has been investigated for the first time. Accurate combination of the individual component layers based on optical simulations and precise control of layers thickness and composition leads to high solar absorptivity (α Sol=0.926) and low thermal emissivity (ε25 C=0.017) on a silver film, resulting in a high solar thermal energy conversion efficiency. The tandem absorber is stable in moderate vacuum at temperatures above 600 C showing low emissivity (estimated value at 600 C is ε 600 C=0.109) evidencing its relevance for high temperature solar selective applications. A full optical and thermal analysis of a parabolic trough concentrator (PTC) system confirmed the potential of the novel coating material to be used for CSP technology. © 2013 Published by Elsevier B.V. All rights reserved. | URI: | http://hdl.handle.net/10261/95149 | DOI: | 10.1016/j.solmat.2013.12.005 | Identificadores: | doi: 10.1016/j.solmat.2013.12.005 issn: 0927-0248 |
Aparece en las colecciones: | (ICMM) Artículos |
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