Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

Patent · Wed Apr 02 23:00:00 EST 1986

OSTI ID:6448674

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

A magnetic refrigerator operating in the 12 to 77 K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE87007225
• OSTI ID: 6448674
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BELT CONVEYORS
CONVEYORS
COOLING
CRYOGENIC FLUIDS
ELEMENTS
ENERGY TRANSFER
EQUIPMENT
FERROMAGNETIC MATERIALS
FLUID FLOW
FLUID MECHANICS
FLUIDS
HAULAGE EQUIPMENT
HEAT TRANSFER
IRON
MAGNETIC MATERIALS
MAGNETIC REFRIGERATORS
MAGNETISM
MATERIALS
MATERIALS HANDLING EQUIPMENT
MECHANICS
METALS
NITROGEN
NONMETALS
PARAMAGNETISM
REFRIGERATION
REFRIGERATORS
TEMPERATURE GRADIENTS
TRANSITION ELEMENTS
VERY LOW TEMPERATURE