| Abstract Scope |
Magnetocaloric regenerators printed with La(FeSi)13 alloys show promise in providing energy-efficient magnetic-refrigeration. However, they are difficult to produce and mechanically unstable. In this study, optimized regenerators are printed via Laser-Powder-Bed-Fusion in three regenerator configurations aiming to balance fluid and thermodynamic performance. Gyroid, Schwarz and Foil Pins are tested as possible regenerator designs. These regenerators are treated to achieve the 1:13 phase with a curie temperature near room temperature for ideal cooling operation. Mechanical stability, fluid performance and magnetic performance are measured in a magnetocaloric refrigerator test bed, Calorismart, in collaboration with Ames National Lab. Following recent studies, Foil Pin regenerators are expected to lead performance metrics (pressure drop, heat transfer) over the Gyroid and Schwarz designs bar the survival of the heat treatment and hydrogenation process. These results advance the realization of magnetic refrigeration by demonstrating the feasibility of additive manufacturing techniques for producing powerful and efficient magnetocaloric regenerators. |