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High temperature refrigerator

Patent ·
OSTI ID:863161
A high temperature magnetic refrigerator 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 said 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.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4107935
OSTI ID:
863161
Country of Publication:
United States
Language:
English

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Related Subjects

/62/505/
70
absorbs
absorbs heat
adiabatically
carnot
cooled
cycle
demagnetized
deposits
efficiency
exchange
field
fluid
heat
heat exchange
heat source
heated
magnetic
magnetic refrigeration
magnetic refrigerator
magnetized
material
operates
pumped
refrigeration
refrigeration cycle
refrigerator
reservoir
rotating
rotating magnetic
source
stirling-like
temperature
temperature heat
temperature magnetic
zero
zero field