1D model of an active magnetic regenerator

• We have developed a 1D model of an active magnetic regenerator.
• During the non-pumping phases the parasitic heat exchange between the fluid and the solid can be modeled.
• Heat losses with the environment can be included.
• The cooling power is calculated with the thermal load method.

The 1D active magnetic regenerator model developed at the University of Applied Sciences of Western Switzerland is described. The system of two partial differential equations is discretized with the finite differences method backward in time and solved with the tridiagonal matrix algorithm. New features, not found in the literature in 1D models, are thermal losses in the regenerator, parasitic heat exchange, and the calculation of the AMR cycle output power in steady state. The model is implemented in MATLAB and it has a graphical user interface.