Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers
The development of spectrally selective materials is gaining an increasing role in solar thermal technology. The ideal spectrally selective solar absorber requires high absorbance at the solar spectrum wavelengths and low emittance at the wavelengths of thermal spectrum. Selective coating represents...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/834128 |
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| author | Stefano Pratesi Elisa Sani Maurizio De Lucia |
| author_facet | Stefano Pratesi Elisa Sani Maurizio De Lucia |
| author_sort | Stefano Pratesi |
| collection | DOAJ |
| description | The development of spectrally selective materials is gaining an increasing role in solar thermal technology. The ideal spectrally selective solar absorber requires high absorbance at the solar spectrum wavelengths and low emittance at the wavelengths of thermal spectrum. Selective coating represents a promising route to improve the receiver efficiency for parabolic trough collectors (PTCs). In this work, we describe an intermediate step in the fabrication of black-chrome based solar absorbers, namely, the fabrication and characterization of nickel coatings on stainless steel substrates. Microstructural characteristics of nickel surfaces are known to favorably affect further black chrome deposition. Moreover, the high reflectivity of nickel in the thermal infrared wavelength region can be advantageously exploited for reducing thermal emission losses. Thus, this report investigates structural features and optical properties of the nickel surfaces, correlating them to coating thickness and deposition process, in the perspective to assess optimal conditions for solar absorber applications. |
| format | Article |
| id | doaj-art-9d441d2df3cd4cfdb1dfe1c9bba44f77 |
| institution | OA Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-9d441d2df3cd4cfdb1dfe1c9bba44f772025-08-20T02:20:18ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/834128834128Optical and Structural Characterization of Nickel Coatings for Solar Collector ReceiversStefano Pratesi0Elisa Sani1Maurizio De Lucia2Dipartimento di Ingegneria Industriale, Università degli Studi di Firenze, Via di S. Marta 3, 50139 Florence, ItalyCNR-INO National Institute of Optics, Largo E. Fermi 6, 50125 Firenze, ItalyDipartimento di Ingegneria Industriale, Università degli Studi di Firenze, Via di S. Marta 3, 50139 Florence, ItalyThe development of spectrally selective materials is gaining an increasing role in solar thermal technology. The ideal spectrally selective solar absorber requires high absorbance at the solar spectrum wavelengths and low emittance at the wavelengths of thermal spectrum. Selective coating represents a promising route to improve the receiver efficiency for parabolic trough collectors (PTCs). In this work, we describe an intermediate step in the fabrication of black-chrome based solar absorbers, namely, the fabrication and characterization of nickel coatings on stainless steel substrates. Microstructural characteristics of nickel surfaces are known to favorably affect further black chrome deposition. Moreover, the high reflectivity of nickel in the thermal infrared wavelength region can be advantageously exploited for reducing thermal emission losses. Thus, this report investigates structural features and optical properties of the nickel surfaces, correlating them to coating thickness and deposition process, in the perspective to assess optimal conditions for solar absorber applications.http://dx.doi.org/10.1155/2014/834128 |
| spellingShingle | Stefano Pratesi Elisa Sani Maurizio De Lucia Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers International Journal of Photoenergy |
| title | Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers |
| title_full | Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers |
| title_fullStr | Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers |
| title_full_unstemmed | Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers |
| title_short | Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers |
| title_sort | optical and structural characterization of nickel coatings for solar collector receivers |
| url | http://dx.doi.org/10.1155/2014/834128 |
| work_keys_str_mv | AT stefanopratesi opticalandstructuralcharacterizationofnickelcoatingsforsolarcollectorreceivers AT elisasani opticalandstructuralcharacterizationofnickelcoatingsforsolarcollectorreceivers AT mauriziodelucia opticalandstructuralcharacterizationofnickelcoatingsforsolarcollectorreceivers |