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Title: High temperature refrigerator

Abstract

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.

Inventors:
 [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
863161
Patent Number(s):
4107935
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature; refrigerator; magnetic; stirling-like; cycle; rotating; material; heated; zero; field; adiabatically; magnetized; cooled; demagnetized; heat; exchange; pumped; fluid; absorbs; source; deposits; reservoir; refrigeration; operates; efficiency; 70; carnot; refrigeration cycle; rotating magnetic; magnetic refrigeration; absorbs heat; zero field; heat exchange; heat source; magnetic refrigerator; temperature heat; temperature magnetic; /62/505/

Citation Formats

Steyert, Jr., William A. High temperature refrigerator. United States: N. p., 1978. Web.
Steyert, Jr., William A. High temperature refrigerator. United States.
Steyert, Jr., William A. Sun . "High temperature refrigerator". United States. https://www.osti.gov/servlets/purl/863161.
@article{osti_863161,
title = {High temperature refrigerator},
author = {Steyert, Jr., William A.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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