GRETh

Le GRETh organise chaque année des Journées Techniques destinées à traiter les thématiques actuelles de R&D du domaine de la thermique et de l’énergétique à travers des présentations réalisées par des industriels et laboratoires partenaires. Journée du 12 novembre 2025…

Le GRETh a eu le plaisir de participer en tant que visiteur au Salon Pollutec 2025, rendez-vous incontournable des technologies de l’environnement et de la transition énergétique. Cette édition a été l’occasion de rencontrer plusieurs de nos membres (notamment BARRIQUAND,…

Summary : The energy efficiency of thermal components and systems, and the improvement and development of new technologies, are major challenges today. In this general context, the work presented in this thesis aims to improve thermal performance and...

Summary : Faced with growing demand for sustainable aviation, hybrid-electric propulsion systems, particularly those incorporating hydrogen fuel cells due to their high specific energy and potential for zero carbon emissions, are attracting significant interest.

Summary : In order to optimize the energy production of internal and external combustion engines, a better understanding of pulsed flows is necessary. However, these flows are highly dependent on heat transfer within heat exchangers. These exchangers...

Summary : Two-phase thermosyphons allow the efficient and passive transfer of thermal energy from a hot source to a cold source. Their physical principle is based on the natural circulation induced by gravity without the need...

Summary : Heat accounts for 50% of energy consumption in Europe and is still largely produced from fossil fuels (75%). Thermal storage is a key component in the decarbonization of heat production, enabling...

Summary : In the context of the energy transition, power electronics faces several challenges in order to meet the sharp increase in electrical power transmitted. Wide bandgap semiconductor components enable the conversion of higher...