Magnetocaloric refrigeration is a promising alternative to conventional vapor-compression cooling technology. The company MAGNOTHERM develops such systems based on high-performance permanent magnets. Recently, recycled magnets, for example from decommissioned MRI systems, have become available as a more sustainable alternative to newly manufactured magnets. However, these recycled magnets exhibit altered and uncertain material properties, such as reduced remanence and increased variability in magnetic characteristics. Understanding how these uncertainties affect the performance and robustness of magnetocaloric devices is essential for assessing the feasibility of recycled materials in industrial applications.

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