Dresden 2026 – scientific programme
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MA: Fachverband Magnetismus
MA 52: Poster Magnetism III
MA 52.24: Poster
Thursday, March 12, 2026, 15:00–17:00, P4
Superconducting magnetic system for magnetocaloric hydrogen liquefaction — •C. Estillac Leal Silva1,2, T. Platte4, M. Straßheim1,3, T. Niehoff1,3, C. Salazar-Meija1, J. Wosnitza1,3, and T. Gottschall1 — 1Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf Dresden, Germany — 2TU Bergakademie Freiberg, Freiberg, Germany — 3Institüt für Festkörper und Materialphysik, TU Dresden, Dresden, Germany — 4Magnotherm Solutions GmbH, Darmstadt, Germany
As hydrogen's importance in the clean-energy sector continues to expand, improving its liquefaction efficiency becomes crucial, since the liquid form provides high volumetric energy density for storage and transport. Traditional compression systems, however, remain both costly and energy-intensive, prompting interest in magnetic refrigeration as an alternative process. This approach employs the adiabatic temperature variation of magnetocaloric materials in an Active Magnetocaloric Regenerator (AMR) to reach the final cooling stage required for hydrogen liquefaction. Achieving large temperature spans requires large variations in the magnetic field. In addition, higher operating frequencies are needed to reach greater cooling powers. Therefore, a magnetic system capable of sustaining high fields while supporting rapid cycling, whether through linear or rotary motion of the magnetocaloric material, is necessary. This presentation discusses the development of a superconducting magnetic system meeting these requirements, targeting a concentrated 5-7 T field which enables a sharp field change.
Keywords: Magnetocaloric; Superconducting magnets; Hydrogen liquefaction; Magnetic refrigeration; Magnetic field