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Thesis
Home   /   Thesis   /   Improvement of low impact PV modules through an hybrid experimental/numerical strategy

Improvement of low impact PV modules through an hybrid experimental/numerical strategy

Engineering sciences Materials and applications Mechanics, energetics, process engineering

Abstract

The global annual photovoltaic (PV) module production has been growing steadily for decades. In 2022, it reached 400 GWc and it should exceed the 1 TWc threshold before 2030. These modules represent massive investments in terms of money, carbon emissions, energy, etc. Since the energy produced by a PV module grows with time, the rationality of these investments increases with their durability and their reliability. In a standard PV module, the cells are embedded in an elastomer, the encapsulant. This inner layer plays several protective roles. Among others: it mitigates the mechanical loadings to which a module is exposed, it is responsible of the mechanical integrity of the module and, consequently, it makes the separation of layers challenging for recycling. Finally, an alternative way to increase the investment rationality is to reduce the investment itself. Regarding environmental costs, this may be done with less matter, materials easier to recycle and/or coming from renewable sources.
In this thesis, the work will focus on the delamination arising during PV module ageing. The conditions in which these critical defaults appear and propagate will be addressed experimentally and theoretically. The impact of the parameters involved will be estimated. This will include the nature of the encapsulant, in connection with the module recyclability, along with the process, the module architecture and the type of ageing. In particular, the impact of the quantity of encapsulant will be assessed. This work will rely on the means and expertise of two laboratories, CEMEF (Sophia Antipolis) and CEA-INES (Bourget-du-Lac).

Laboratory

Département des Technologies Solaires (LITEN)
Service des Modules et Systèmes PV
Laboratoire des applications modules
Nice-Sophia-Antipolis
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