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Title: Test methods for hydrophobic coatings on solar cover glass
Authors: Isbilir, Kenan
Maniscalco, Bianca
Gottschalg, Ralph
Walls, Michael
Keywords: Hydrophobic coating performance
Photovoltaic (PV) anti-soiling
Coating durability tests
Issue Date: 2017
Publisher: © IEEE
Citation: ISBILIR, K. ... et al, 2017. Test methods for hydrophobic coatings on solar cover glass. 44th IEEE Photovoltaic Specialists Conference (PVSC), Washington DC, USA, 25th-30th June 2017.
Abstract: The world market for solar energy continues to expand. However, to be competitive with traditional energy sources, photovoltaic (PV) modules must be capable of continuous and reliable high performance. Performance losses occur due to the soiling of the cover glass on modules. Soiling can be reduced by using hydrophobic coatings. These decrease surface energy and thus minimize adhesion to soiling. These coatings can help reduce maintenance and retain consistent electrical output. It is not yet clear, how hydrophobic coatings can be assessed and compared. In this paper, test methods to simulate the stresses that coatings experience in their life-time are assessed. These test methods help to predict the durability and useful lifetime of the coatings when applied to solar cover glass. Various test methods from different standards have been applied to hydrophobic coated glass surfaces and optimized to simulate real-outdoor conditions. A sand impact test and a water drop simulation test have been devised to study the effect of sand and rain on hydrophobic performance and durability.
Description: This paper is closed access until it is published. © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor: The authors are grateful to EPSRC for support of the SOLplus project funded through EP/N510014/1.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/25850
Publisher Link: http://www.ieee-pvsc.org/PVSC44/
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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