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Soiling and Degradation Analysis of Solar Mirrors

Delord, Christine and Blaise, A. and Fernandez-Garcia, Aranzazu and Martinez-Arcos, Lucia and Sutter, Florian and Reche-Navarro, T. Jesus (2016) Soiling and Degradation Analysis of Solar Mirrors. AIP Conference Proceedings (1734). American Institute of Physics (AIP). doi: 10.1063/1.4949186. ISSN 0094-243X.

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Official URL: http://dx.doi.org/10.1063/1.4949186


The degradation and the soiling of the mirrors are dependent of the solar field and the mirrors technologies, the local climate, the meteorological events, the O&M tasks and the human activities around the site. In the frame of the European project SFERA II, the SODAM project has been the opportunity to compare the soiling and the degradation mechanisms on a Fresnel solar field installed in the South of France and on a parabolic-through solar field installed in the South of Spain. The analysis of the soiling has shown equivalent maximum weekly reflectance loss due to soiling in both sites but a double mean weekly reflectance loss in Spain respect to France, as well as typical meteorological events to be taken into account to adapt the cleaning strategies. Among the meteorological parameters mainly influencing the soiling, the study has revealed the effect of the rain and of the DNI. In parallel, the analysis of the degradation mechanisms has highlighted a common chalking of the protective back paint layers due to the irradiation. This chalking being associated to a leaching of the paint layers in the site of Cadarache due to the high presence of liquid water. A difference in the speed of corrosion of the silver layer has been also noticed, leading to a difference in the mechanisms of delamination of the paints layers.

Item URL in elib:https://elib.dlr.de/108926/
Document Type:Article
Title:Soiling and Degradation Analysis of Solar Mirrors
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Martinez-Arcos, Luciaciemat psaUNSPECIFIEDUNSPECIFIED
Sutter, FlorianUNSPECIFIEDhttps://orcid.org/0000-0002-2981-5807UNSPECIFIED
Date:May 2016
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:American Institute of Physics (AIP)
Keywords:soiling, degradation, solar mirrors
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Impact of Desert Environment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualifizierung
Deposited By: Kruschinski, Anja
Deposited On:05 Dec 2016 14:33
Last Modified:28 Mar 2023 23:47

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