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Methods for service life time estimation of aluminum reflectors

Sutter, Florian and Heller, Peter and Fernandez, Aranzazu and Kennedy, Cheryl and Lopez-Martin, Rafael and Meyen, Stephanie and Pitz-Paal, Robert (2011) Methods for service life time estimation of aluminum reflectors. In: SolarPaces Proceedings. SolarPaces, September 2011, Granada, Spanien.

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Abstract

In order to reduce electricity generation costs of concentrating solar power (CSP) technologies, new low-cost reflector materials are being developed. These materials need to withstand difficult outdoor conditions without a significant loss in specular reflectance. In this work, samples of enhanced anodized aluminum reflectors protected by a sol-gel coating exposed at different weathering sites have been analyzed with an innovative specular reflectometer and accelerated aging tests have been carried out in order to estimate the service life time. A new accelerated aging procedure is proposed, which consists in combining abrasion and corrosion testing.

Document Type:Conference or Workshop Item (Paper)
Title:Methods for service life time estimation of aluminum reflectors
Authors:
AuthorsInstitution or Email of Authors
Sutter, FlorianFlorian.Sutter@dlr.de
Heller, PeterDLR
Fernandez, AranzazuCiemat
Kennedy, CherylNREL
Lopez-Martin, RafaelCiemat
Meyen, StephanieDLR
Pitz-Paal, RobertDLR
Date:September 2011
Journal or Publication Title:SolarPaces Proceedings
Refereed publication:Yes
Status:Published
Keywords:accelerated and outdoor weathering, aging of solar reflectors, specular reflectance, reflectometer, filiform corrosion of aluminum
Event Title:SolarPaces
Event Location:Granada, Spanien
Event Type:international Conference
Event Dates:September 2011
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Qualifizierung
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research
Deposited By: Florian Sutter
Deposited On:16 Dec 2011 13:32
Last Modified:12 Dec 2013 21:30

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