Magnetocaloric Refrigeration Wheel

This simulator models a rotary active-magnetic-regenerator refrigerator: a ring of magnetocaloric material spins continuously through a fixed high-field gap between two magnet poles. Each block of material heats up as it enters the field and cools as it leaves, exchanging that heat with a hot reservoir and a cold reservoir once per revolution — the same working principle used in prototype room-temperature magnetic refrigerators built around gadolinium alloys. Adjust the applied field, the material's Curie temperature, the wheel's rotation speed and a parasitic cold-side heat load to see the hot and cold reservoir temperatures diverge in real time, and watch the magnetocaloric effect collapse when the Curie point drifts away from the wheel's operating temperature.