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U.S. Department of Energy
Office of Scientific and Technical Information

High temperature refrigerator

Patent ·
OSTI ID:6398683
A high temperature magnetic refrigerator is described which uses a Stirling-like cycle in which rotating magnetic working material is heated in zero field and adiabatically magnetized, cooled in high field, then adiabatically demagnetized. During this cycle the working material is in heat exchange with a pumped fluid which absorbs heat from a low temperature heat source and deposits heat in a high temperature reservoir. The magnetic refrigeration cycle operates at an efficiency 70% of Carnot.
Assignee:
Dept. of Energy
Patent Number(s):
US 4107935
OSTI ID:
6398683
Country of Publication:
United States
Language:
English