Degradation of concentrating solar thermal reflectors in acid rain atmospheres.
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| Title: | Degradation of concentrating solar thermal reflectors in acid rain atmospheres. |
|---|---|
| Authors: | García-Segura, A.1 agarcia@psa.es, Fernández-García, A.1 afernandez@psa.es, Ariza, M.J.2 mjariza@ual.es, Sutter, F.3 florian.sutter@dlr.de, Valenzuela, L.1 loreto.valenzuela@psa.es |
| Source: | Solar Energy Materials & Solar Cells. Nov2018, Vol. 186, p92-104. 13p. |
| Subject Terms: | *Solar energy, *Pollutants, *Acid rain, High temperatures, Industrial sites |
| Abstract: | Given the importance that concentrating solar power technologies have had in recent years, the interaction between humid atmospheres in which SO 2 is the main pollutant and the metal reflecting layers of the solar concentrators is a major concern that should be addressed. Previous durability studies have urged the importance of designing an accelerated aging test protocol for simulating aggressive industrial atmospheres that solar reflector materials are bound to encounter. Therefore, three types of reflectors were tested in an acid-rain (or Kesternich) chamber at various temperatures and gas concentrations based on the DIN 50018 and ISO 6988 standards. The results showed the significant effect of high SO 2 concentrations rather than high temperatures on silvered-glass reflectors, although synergy should not be disregarded. Strong reductions in specular reflectance were found for one type of silvered reflector compared to another type, highlighting the significance of material processing and its effects on their final performance. Aluminum reflectors were not damaged as much as silvered-glass reflectors, but under microscopic inspection, a wide range of noticeable corrosion defects could be found in all the materials. Comparisons between the most representative Kesternich test and samples from an outdoor industrial site permitted realistic lifetime correlations for commercial silvered-glass reflectors. [ABSTRACT FROM AUTHOR] |
| Copyright of Solar Energy Materials & Solar Cells is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 130911247 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Degradation of concentrating solar thermal reflectors in acid rain atmospheres. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22García-Segura%2C+A%2E%22">García-Segura, A.</searchLink><relatesTo>1</relatesTo><i> agarcia@psa.es</i><br /><searchLink fieldCode="AR" term="%22Fernández-García%2C+A%2E%22">Fernández-García, A.</searchLink><relatesTo>1</relatesTo><i> afernandez@psa.es</i><br /><searchLink fieldCode="AR" term="%22Ariza%2C+M%2EJ%2E%22">Ariza, M.J.</searchLink><relatesTo>2</relatesTo><i> mjariza@ual.es</i><br /><searchLink fieldCode="AR" term="%22Sutter%2C+F%2E%22">Sutter, F.</searchLink><relatesTo>3</relatesTo><i> florian.sutter@dlr.de</i><br /><searchLink fieldCode="AR" term="%22Valenzuela%2C+L%2E%22">Valenzuela, L.</searchLink><relatesTo>1</relatesTo><i> loreto.valenzuela@psa.es</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Solar+Energy+Materials+%26+Solar+Cells%22">Solar Energy Materials & Solar Cells</searchLink>. Nov2018, Vol. 186, p92-104. 13p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Solar+energy%22">Solar energy</searchLink><br />*<searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br />*<searchLink fieldCode="DE" term="%22Acid+rain%22">Acid rain</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Industrial+sites%22">Industrial sites</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Given the importance that concentrating solar power technologies have had in recent years, the interaction between humid atmospheres in which SO 2 is the main pollutant and the metal reflecting layers of the solar concentrators is a major concern that should be addressed. Previous durability studies have urged the importance of designing an accelerated aging test protocol for simulating aggressive industrial atmospheres that solar reflector materials are bound to encounter. Therefore, three types of reflectors were tested in an acid-rain (or Kesternich) chamber at various temperatures and gas concentrations based on the DIN 50018 and ISO 6988 standards. The results showed the significant effect of high SO 2 concentrations rather than high temperatures on silvered-glass reflectors, although synergy should not be disregarded. Strong reductions in specular reflectance were found for one type of silvered reflector compared to another type, highlighting the significance of material processing and its effects on their final performance. Aluminum reflectors were not damaged as much as silvered-glass reflectors, but under microscopic inspection, a wide range of noticeable corrosion defects could be found in all the materials. Comparisons between the most representative Kesternich test and samples from an outdoor industrial site permitted realistic lifetime correlations for commercial silvered-glass reflectors. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Solar Energy Materials & Solar Cells is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.solmat.2018.06.032 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 92 Subjects: – SubjectFull: Solar energy Type: general – SubjectFull: Pollutants Type: general – SubjectFull: Acid rain Type: general – SubjectFull: High temperatures Type: general – SubjectFull: Industrial sites Type: general Titles: – TitleFull: Degradation of concentrating solar thermal reflectors in acid rain atmospheres. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: García-Segura, A. – PersonEntity: Name: NameFull: Fernández-García, A. – PersonEntity: Name: NameFull: Ariza, M.J. – PersonEntity: Name: NameFull: Sutter, F. – PersonEntity: Name: NameFull: Valenzuela, L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09270248 Numbering: – Type: volume Value: 186 Titles: – TitleFull: Solar Energy Materials & Solar Cells Type: main |
| ResultId | 1 |
