13. Air-Condition and Refrigeration

A magnetocaloric heat pump has a higher theoretical coefficient of performance than a conventional vapor compression heat pump. In recent years, many studies have been conducted to improve the refrigeration capacity of the magnetocaloric heat pump (T. Kawanami (1) et al.,2017). The refrigeration capacity of magnetocaloric heat pump systems depend on the magnetic field strength imparted to the magnetocaloric material (MCM) as the refrigerant of system. In this study, the effect of applied magnetic field strength on the refrigeration capacity and the maximum temperature span were clarified using a numerical simulation. As a result, it was found that the applied magnetic field strength of 1.5T were about three times greater than those of 0.5T, both in terms of maximum refrigeration capacity and maximum temperature span.