Sutter, Florian und Fernandez, Arantxa und Heller, Peter und Kennedy, Cheryl und Meyen, Stephanie und Pitz-Paal, Robert und Schmücker, Martin (2010) A new method to characterize degradation of first surface aluminium reflectors. In: Proceedings of the SolarPACES 2010 conference. Proceedings of the SolarPACES 2010 conference, 2010-09-21 - 2010-09-24, Perpignan, Frankreich.
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Kurzfassung
This paper reports the development of a new optical instrument capable of characterizing the aging process of enhanced first surface aluminum reflectors for concentrating solar power (CSP) application. Samples were exposed outdoors at different sites and in accelerated exposure tests. All samples exposed outdoors showed localized corrosion spots. Degradation originated from points of damage in the protective coating, but propagated underneath the protective coating. The degraded samples were analyzed with a microscope and with a newly designed space-resolved specular reflectometer (SR)2 that is capable of optically detecting and characterizing the corrosion spots. The device measures the specular reflectance at three acceptance angles and the wavelengths with spatial resolution using a digital camera’s CMOS sensor. It can be used to measure the corrosion growth rate during outdoor and accelerated exposure tests. These results will allow a correlation between the degraded mirror surface and its specular reflectance.
elib-URL des Eintrags: | https://elib.dlr.de/68552/ | ||||||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||||||||||||||||||
Titel: | A new method to characterize degradation of first surface aluminium reflectors | ||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 21 September 2010 | ||||||||||||||||||||||||||||||||
Erschienen in: | Proceedings of the SolarPACES 2010 conference | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | accelerated and outdoor weathering, aging of reflectors, specular reflectance, reflectometer, filiform corrosion of aluminum, soiling | ||||||||||||||||||||||||||||||||
Veranstaltungstitel: | Proceedings of the SolarPACES 2010 conference | ||||||||||||||||||||||||||||||||
Veranstaltungsort: | Perpignan, Frankreich | ||||||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 21 September 2010 | ||||||||||||||||||||||||||||||||
Veranstaltungsende: | 24 September 2010 | ||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||||||
HGF - Programm: | Erneuerbare Energie | ||||||||||||||||||||||||||||||||
HGF - Programmthema: | Konzentrierende Solarsysteme (alt) | ||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SF - Solarforschung | ||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Qualifizierung (alt) | ||||||||||||||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Sutter, Florian | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 24 Jan 2011 07:38 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 19:34 |
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