Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

Patent · Tue Nov 10 00:00:00 EST 1987

OSTI ID:5685743

Barclay, J A; Stewart, W F; Henke, M D; Kalash, K E

An about 12 to about 77K refrigeration apparatus is described comprising: a belt disposed in a loop around at least two wheels, with at least one wheel being a drive wheel; ferromagnetic or paramagnetic porous material carried by the belt; a magnetic field generating means disposed to produce a magnetic field surrounding at least one portion of the loop with the magnetic field essentially parallel to the direction of movement of the belt while the belt is in the magnetic field; means for driving the drive wheel; a fluid effective to transfer heat at temperatures between about 12 and about 85K; first and second higher temperature fluid manifolds directing the fluid from the first manifold adjacent to the first edge of the material; first a second lower temperature fluid manifolds directing the fluid from first manifold adjacent to the second edge of the material; at least one thermal load exchange means; a heat rejection exchange means; and means for pumping and transporting fluid from the heat rejection exchange means through the first and second higher temperature manifolds to the thermal load exchange means.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4704871
• OSTI ID: 5685743
• Resource Relation: Patent File Date: Filed date 3 Apr 1986
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
REFRIGERATORS
DESIGN
FERROMAGNETISM
PARAMAGNETISM
ULTRALOW TEMPERATURE
CURIE POINT
FERROMAGNETIC MATERIALS
HEAT EXCHANGERS
HEAT TRANSFER FLUIDS
LOW TEMPERATURE
MAGNETIC FIELDS
OPERATION
POROUS MATERIALS
PUMPS
FLUIDS
MAGNETIC MATERIALS
MAGNETISM
MATERIALS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)