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Title: Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

Abstract

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.

Inventors:
; ; ;
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
6448674
Application Number:
ON: DE87007225
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; MAGNETIC REFRIGERATORS; BELT CONVEYORS; CRYOGENIC FLUIDS; FERROMAGNETIC MATERIALS; FLUID FLOW; FLUID MECHANICS; HEAT TRANSFER; IRON; NITROGEN; PARAMAGNETISM; REFRIGERATION; TEMPERATURE GRADIENTS; VERY LOW TEMPERATURE; CONVEYORS; COOLING; ELEMENTS; ENERGY TRANSFER; EQUIPMENT; FLUIDS; HAULAGE EQUIPMENT; MAGNETIC MATERIALS; MAGNETISM; MATERIALS; MATERIALS HANDLING EQUIPMENT; MECHANICS; METALS; NONMETALS; REFRIGERATORS; TRANSITION ELEMENTS; 420201* - Engineering- Cryogenic Equipment & Devices

Citation Formats

Barclay, J A, Stewart, W F, Henke, M D, and Kalash, K E. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material. United States: N. p., 1986. Web.
Barclay, J A, Stewart, W F, Henke, M D, & Kalash, K E. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material. United States.
Barclay, J A, Stewart, W F, Henke, M D, and Kalash, K E. Thu . "Magnetic refrigeration apparatus with belt of ferro or paramagnetic material". United States.
@article{osti_6448674,
title = {Magnetic refrigeration apparatus with belt of ferro or paramagnetic material},
author = {Barclay, J A and Stewart, W F and Henke, M D and Kalash, K E},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {4}
}