Wheel-type magnetic refrigerator

Patent · Tue Oct 11 04:00:00 EDT 1983

OSTI ID:7152572

Barclay, J A

The disclosure is directed to a wheel-type magnetic refrigerator capable of cooling over a large temperature range. Ferromagnetic or paramagnetic porous materials are layered circumferentially according to their Curie temperature. The innermost layer has the lowest Curie temperature and the outermost layer has the highest Curie temperature. The wheel is rotated through a magnetic field perpendicular to the axis of the wheel and parallel to its direction of rotation. A fluid is pumped through portions of the layers using inner and outer manifolds to achieve refrigeration of a thermal load. 7 figs.

• DOE Contract Number: W-7405-ENG-36
• Assignee: PTO; EDB-94-123586
• Patent Number(s): A; US 4408463
• Application Number: PPN: US 6-340904
• OSTI ID: 7152572
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
CURIE POINT
FLUIDS
HEAT TRANSFER FLUIDS
MAGNETIC REFRIGERATORS
PERFORMANCE
PHYSICAL PROPERTIES
REFRIGERATORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WORKING FLUIDS