MAGNETO CALORIC HEAT PUMP WITH VARIABLE MAGNETIZATION

摘要

A heat pump system that uses variable magnetization to control the amount of MCM subjected to a magnetic field is provided. More particularly, the amount of MCM subjected to a magnetic field can be selected based on the amount of refrigeration needed. As such, the heat pump system can be adjusted based on e.g., changes in ambient conditions, and the energy used in operating such a heat pump system can be conserved so as to increase energy efficiency of the system.

主权项

1. A method of operating a magneto caloric device, comprising:
providing magneto caloric material and a magnetic field; positioning the magneto caloric material into the magnetic field; removing the magneto caloric material from the magnetic field; and controlling the extent of cooling or heating of the magneto caloric material by adjusting the amount of the magneto caloric material subjected to the magneto caloric effect during said steps of positioning and removing.