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Solar Reflector Materials Degradation Due to the Sand Deposited on the Backside Protective Paints

Fernandez-Garcia, Aranzazu and Juaidi, Adel and Sutter, Florian and Martinez-Arcos, Lucia and Manzano-Agugliaro, Francisco (2018) Solar Reflector Materials Degradation Due to the Sand Deposited on the Backside Protective Paints. Energies, 11 (808), pp. 1-20. Multidisciplinary Digital Publishing Institute (MDPI). DOI: 10.3390/en11040808 ISSN 1996-1073

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Concentrating solar power (CSP) Technologies are foreseen to be a crucial actor in the future renewable energy mix. Soil accumulation on the optical surfaces of CSP plants involves significant expenses of the operation and maintenance activities because a high cleanliness level is required to achieve proper plant revenues. Normally, only the front side of the solar reflectors is cleaned to reflect the maximum possilbe amount of direct solar radiation towards the receiver. However, soil depoisted on the backside of the reflector could provoke degradation and might need to be considered in the cleaning strategyAs this possible degradation has never been studied, this work is dedicated to assess if the backside of refelctros should be regularly cleaned. The influence of the sand in the possible paint degradation depends on its chemical composition and the weather conditions. Therefore, several climatic conditions of artificially soiled reflector samples with different types of sand were simulated in accelerated aging tests. Concerning the results obtained, the ambient conditions simulated by the damp heat and thermal cycling tests were the only ones that produced a significant degradation of the backside paints. Also, the sand from Ouarzazate was responsible for higher Deterioration.

Item URL in elib:https://elib.dlr.de/120690/
Document Type:Article
Title:Solar Reflector Materials Degradation Due to the Sand Deposited on the Backside Protective Paints
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fernandez-Garcia, Aranzazuarantxa.fernandez (at) psa.esUNSPECIFIED
Juaidi, Adeladel (at) najah.eduUNSPECIFIED
Sutter, FlorianFlorian.Sutter (at) dlr.dehttps://orcid.org/0000-0002-2981-5807
Manzano-Agugliaro, Franciscofmanzano (at) ual.esUNSPECIFIED
Date:31 March 2018
Journal or Publication Title:Energies
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.3390/en11040808
Page Range:pp. 1-20
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:concentrating solar thermal Technology, solar reflector material, durability, sand particle, water consumption, accelerated 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 08:30
Last Modified:14 Dec 2019 04:24

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