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Assessment of the erosion risk of sandstorms on solar energy technology at two sites in Morocco

Wiesinger, Florian and Sutter, Florian and Wolfertstetter, Fabian and Hanrieder, Natalie and Fernandez-Garcia, Aranzazu and Pitz-Paal, Robert and Schmücker, Martin (2018) Assessment of the erosion risk of sandstorms on solar energy technology at two sites in Morocco. Solar Energy, 162, pp. 217-228. Elsevier. DOI: 10.1016/j.solener.2018.01.004 ISSN 0038-092X

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This multi-disciplinary research paper should help solar power plant developers to perform an advanced site assessment in arid locations where the annual irradiance levels are high, but significant quantities of airborne sand and dust increase the risk of optical energy losses due to extinction, soiling, erosion damage (also known as abrasion), etc. Due to these effects sandstorms have a direct consequence on the operation and maintenance (O& M) costs. The work presented in the following characterizes airborne sand and dust material and later focuses on the resulting erosion effects. Some important meteorological and geological parameters for sandstorm occurrence and the resulting erosive damage on glass materials by impacting windblown material are extracted from literature. The respective parameters have been measured at two locations in Morocco (Zagora and Missour). After evaluation of wind and humidity data and a comprehensive soil analysis, the erosion risk was estimated to be higher in Zagora. The specular reflectance loss of exposed silvered-glass reflectors of 5.9% in Zagora and 0.8% in Missour after 25 months of exposure verified this estimation. Additionally, a specular reflectance analysis on a mirror sample that has been exposed for nine months in Kuwait is shown. On that sample specular reflectance losses of more than 40% were measured. A checklist with seven items is given in the conclusion to help solar plant developers to evaluate the risk of component aging due to sand storm erosion.

Item URL in elib:https://elib.dlr.de/120298/
Document Type:Article
Title:Assessment of the erosion risk of sandstorms on solar energy technology at two sites in Morocco
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wiesinger, Florianflorian.wiesinger (at) dlr.dehttps://orcid.org/0000-0002-7062-0497
Sutter, FlorianFlorian.Sutter (at) dlr.deUNSPECIFIED
Wolfertstetter, Fabianfabian.wolfertstetter (at) dlr.dehttps://orcid.org/0000-0003-4323-8433
Hanrieder, Natalienatalie.hanrieder (at) dlr.dehttps://orcid.org/0000-0002-9671-351X
Fernandez-Garcia, Aranzazuarantxa.fernandez (at) psa.esUNSPECIFIED
Pitz-Paal, RobertRobert.Pitz-Paal (at) dlr.dehttps://orcid.org/0000-0002-3542-3391
Schmücker, MartinMartin.Schmuecker (at) dlr.deUNSPECIFIED
Date:January 2018
Journal or Publication Title:Solar Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.solener.2018.01.004
Page Range:pp. 217-228
Keywords:Concentrating solar power, Sand Erosion, Site assessment, Mirror abrasion, Solar reflector aging
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Impact of Desert Environment
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Deposited By: Kruschinski, Anja
Deposited On:18 Sep 2018 08:29
Last Modified:31 Jul 2019 20:17

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