Sansom, Christopher und Fernandez-Garcia, Aranzazu und Sutter, Florian und Almond, Heather und King, Peter und Martinez-Arcos, Lucia (2016) Soiling and Cleaning of Polymer Film Solar Reflector. Energies, 9 (916). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/en9121006. ISSN 1996-1073.
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Offizielle URL: http://www.mdpi.com/journal/energies
Kurzfassung
Reflectors for concentrated solar thermal technologies need to withstand 20 or even 30 years of outdoor exposure without significant loss of solar specular reflectance. In order to test the durability of innovative reflectors within a shorter period of time, an accelerated aging methodology is required. The problem with accelerated testing is that poor correlation between laboratory and field test results has been achieved in the past. This is mainly because unrealistic degradation mechanisms are accelerated in the weathering chambers. In order to define a realistic testing procedure, a high number of accelerated aging tests have been performed on differently coated aluminum reflectors. The degradation mechanisms of the accelerated tests have been classified and systematically compared to samples that have been exposed at nine different exposure sites outdoors. Besides the standardized aging tests, innovative aging procedures have been developed in such way that the agreement to the degradation pattern observed outdoors is increased. Although degradation depends on materials and location, five generic degradation mechanisms were detected. Standardized tests only reproduced one or two of the five mechanisms detected outdoors. Additionally, several degradation effects that were not observed outdoors appeared. The innovative accelerated aging tests of artificially soiled samples were able to reproduce three of the five mechanisms observed outdoors, presenting a much more realistic overall degradation pattern.
elib-URL des Eintrags: | https://elib.dlr.de/108346/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Soiling and Cleaning of Polymer Film Solar Reflector | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | November 2016 | ||||||||||||||||||||||||||||
Erschienen in: | Energies | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Ja | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
Band: | 9 | ||||||||||||||||||||||||||||
DOI: | 10.3390/en9121006 | ||||||||||||||||||||||||||||
Herausgeber: |
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Verlag: | Multidisciplinary Digital Publishing Institute (MDPI) | ||||||||||||||||||||||||||||
ISSN: | 1996-1073 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | concentrated solar power; accelerated aging; degradation; durability; aluminum solar reflector; corrosion | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||
HGF - Programm: | Erneuerbare Energie | ||||||||||||||||||||||||||||
HGF - Programmthema: | Konzentrierende solarthermische Technologien | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SF - Solarforschung | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Einfluss von Wüstenbedingungen (alt) | ||||||||||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Solarforschung > Qualifizierung | ||||||||||||||||||||||||||||
Hinterlegt von: | Kruschinski, Anja | ||||||||||||||||||||||||||||
Hinterlegt am: | 05 Dez 2016 14:31 | ||||||||||||||||||||||||||||
Letzte Änderung: | 15 Jun 2023 09:25 |
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