Thermomechanical deformations in photovoltaic laminates

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Paggi, M.; Kajari-Schröder, S.; Eitner, U.: Thermomechanical deformations in photovoltaic laminates. In: Journal of Strain Analysis for Engineering Design 46 (2011), Nr. 8, S. 772-782. DOI: https://doi.org/10.1177/0309324711421722

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Sum total of downloads: 93




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Abstract: 
Recent experimental results based on the digital image correlation technique (U. Eitner, M. Köntges, R. Brendel, Solar Energy Mater. Solar Cells, 2010, 94, 1346-1351) show that the gap between solar cells embedded into a standard photovoltaic laminate varies with temperature. The variation of this gap is an important quantity to assess the integrity of the electric connection between solar cells when exposed to service conditions. In this paper, the thermo-elastic deformations in photovoltaic laminates are analytically investigated by developing different approximate models based on the multilayered beam theory. It is found that the temperature-dependent thermo-elastic properties of the encapsulating polymer layer are responsible for the deviation from linearity experimentally observed in the diagram relating the gap variation to the temperature. The contribution of the different material constituents to the homogenized elastic modulus and thermal expansion coefficient of the composite system is also properly quantified through the definition of weight factors of practical engineering use. Copyright © 2011 by Institution of Mechanical Engineers.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: article
Publishing status: publishedVersion
Issue Date: 2011
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 48 51.61%
2 image of flag of United States United States 8 8.60%
3 image of flag of Morocco Morocco 5 5.38%
4 image of flag of United Kingdom United Kingdom 5 5.38%
5 image of flag of Japan Japan 4 4.30%
6 image of flag of France France 3 3.23%
7 image of flag of Belgium Belgium 3 3.23%
8 image of flag of Australia Australia 3 3.23%
9 image of flag of India India 2 2.15%
10 image of flag of Cyprus Cyprus 2 2.15%
    other countries 10 10.75%

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