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Hemispherical Reflectance Results of the SolarPACES Reflectance Round Robin

Montecchi, Marco and Delord, Christine and Raccurt, O. and Disdier, A. and Sallaberry, Fabienne and García de Jalon, A. and Fernandez-Garcia, Aranzazu and Meyen, Stephanie and Happich, Christoph and Heimsath, Anna and Platzer, Werner (2015) Hemispherical Reflectance Results of the SolarPACES Reflectance Round Robin. Energy Procedia (69), pp. 1904-1910. Elsevier. DOI: 10.1016/j.egypro.2015.03.174 ISSN 1876-6102

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Abstract

Mirrors are the first link in the energy-conversion chain from Sun to electricity-delivery in the grid. Shape and solar reflectance are the key-parameters of mirrors, respectively affecting how solar radiation is concentrated around the focus, and how much of the impinging solar power is reflected. In SolarPACES Task III, an expert group is drafting the solar reflectance guidelines; in order to speed up the discussion the SRRR round robin was launched at the beginning of 2013. Identical kits, each one consisting of ten specimens collected from eight cooperating producers, were distributed and measured at six research institutes, acting as evaluators. The kit includes both traditional (glass based) and innovative (first-surface) solar mirrors. The paper only reports on the simplest task among those of SRRR: the solar hemispherical reflectance measurement. Near-specular solar reflectance was also measured and compared but the results are still under investigation and are not part of this paper. The measurements were accomplished according to the guidelines. The differences among the achieved results are within the typical accuracy of spectrophotometers, demonstrating the reliability of the reflectance guidelines. The statistic of the deviations from the true value is analysed separately for each evaluator, and allows us to infer information abut the gauging-status of the adopted reference mirror, as well as the measurement reproducibility.

Item URL in elib:https://elib.dlr.de/103365/
Document Type:Article
Title:Hemispherical Reflectance Results of the SolarPACES Reflectance Round Robin
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Montecchi, MarcoENEA CR CasacciaUNSPECIFIED
Delord, Christinechristine.delord (at) cea.frUNSPECIFIED
Raccurt, O.CEA LitenUNSPECIFIED
Disdier, A.CEA LitenUNSPECIFIED
Sallaberry, FabienneCenerUNSPECIFIED
García de Jalon, A.CenerUNSPECIFIED
Fernandez-Garcia, Aranzazuarantxa.fernandez (at) psa.esUNSPECIFIED
Meyen, StephanieStephanie.Meyen (at) dlr.deUNSPECIFIED
Happich, ChristophSF-QLFUNSPECIFIED
Heimsath, AnnaFhG-ISEUNSPECIFIED
Platzer, WernerFhG-ISEUNSPECIFIED
Date:2015
Journal or Publication Title:Energy Procedia
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1016/j.egypro.2015.03.174
Page Range:pp. 1904-1910
Publisher:Elsevier
ISSN:1876-6102
Status:Published
Keywords:Reflectance; Hemispherical; Mirror; CSP
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:23 May 2016 09:43
Last Modified:06 Sep 2019 15:22

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