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Comportement thermomécanique du sel gemme : Application au dimensionnement des cavités

Abstract : Salt caverns are a promising technique for massive energy storage, especially in the case of the intermittent and unpredictable renewable energy. Historically used for seasonal storage of hydrocarbons (methane, oil...), they are potentially operated with increasingly demanding scenarios for the storage of other fluids (hydrogen, carbon dioxide...). Design methods need to be updated to rise to the new challenges of the energy transition.This thesis proposes a new methodology for salt cavern design, based on the development of a new rheological model including a dilatancy and a tensile criteria. This new model allows to fit numerous different laboratory tests with a single parameter set, in particular short- and long-term tests.Thermo-mechanical numerical simulations of caverns, filled with either methane or hydrogen, and the surrounding rock salt are performed under various cycling scenarios which are classical or closer to the needs associated with the energy transition. Effects of cycle duration, amplitude and mass flow are especially investigated. Results obtained with the new and the classical methodologies are compared.
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Submitted on : Monday, April 8, 2019 - 11:12:09 AM
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  • HAL Id : tel-02092527, version 1


Paule Labaune. Comportement thermomécanique du sel gemme : Application au dimensionnement des cavités. Mécanique des matériaux [physics.class-ph]. Université Paris sciences et lettres, 2018. Français. ⟨NNT : 2018PSLEM035⟩. ⟨tel-02092527⟩



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