General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DES-24-0260
Thesis topic details
Category
Engineering science
Thesis topics
CFD development and modeling applied to thermal-hydraulics of hydrogen storage in salt caverns
Contract
Thèse
Job description
A PhD thesis is available at LMSF lab of CEA in collaboration with Storengy, a world specialist in natural gas storage in salt caverns. Measurements carried out in the cavity showed that gas is in convective motion in the upper part of the cavity and is not necessarily in thermodynamic equilibrium with the brine at the bottom of the cavity, leading to gas stratification phenomena. The different flow regimes (convective or not) will strongly influence, on the one hand, mass exchanges between the gas and the brine and therefore the evolution of the gas composition (in moisture and other components) at the cavity exit and, on the other hand, thermal exchanges between the gas and the rock mass surrounding the cavity. In this context, CFD-based prediction tools are highly beneficial for understanding these phenomena and will contribute to a better interpretation of the physical measurements made in the cavity, to the design improvment of surface installations and to monitoring storage facilities, particularly for hydrogen storage. In this doctoral project, the aim is to develop a thermal-hydraulics model based on TrioCFD software for gas storage in realistically-shaped cavities and under cavity operating conditions (injection and withdrawal phases). To this end, the operation of storage salt cavities will be modeled, initially for a real geometry and in single-phase flow, then in two-phase flow, taking into account mass exchanges between the brine and the gas in the cavity.
University / doctoral school
Mécanique, Energétique, Génie Civil, Procédés (MEGEP)
INP Toulouse
Thesis topic location
Site
Saclay
Requester
Position start date
01/09/2024
Person to be contacted by the applicant
Hamidouche Ziad ziad.hamidouche@cea.fr
CEA
DES/DM2S/STMF/LMSF
ziad.hamidouche@cea.fr
01 69 08 64 18
Tutor / Responsible thesis director
PARICAUD Patrice patrice.paricaud@ensta-paris.fr
ENSTA Paris
Unité de Chimie et Procédé
Unité de Chimie et Procédé
ENSTA Paris - Institut Polytechnique de Paris. 828 boulevard des Maréchaux
91120 Palaiseau.
+33 (0) 1 81 87 20 26.
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