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Title: Flow-synchronous field motion refrigeration

Abstract

An improved method to manage the flow of heat in an active regenerator in a magnetocaloric or an electrocaloric heat-pump refrigeration system, in which heat exchange fluid moves synchronously with the motion of a magnetic or electric field. Only a portion of the length of the active regenerator bed is introduced to or removed from the field at one time, and the heat exchange fluid flows from the cold side toward the hot side while the magnetic or electric field moves along the active regenerator bed.

Inventors:
Publication Date:
Research Org.:
CHO (Chicago Operations Office, Argonne, IL (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1375949
Patent Number(s):
9,739,510
Application Number:
13/261,218
Assignee:
Charles N. Hassen (Tucson, AZ) CHO
DOE Contract Number:  
FG02-07ER84943
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Sep 17
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hassen, Charles N. Flow-synchronous field motion refrigeration. United States: N. p., 2017. Web.
Hassen, Charles N. Flow-synchronous field motion refrigeration. United States.
Hassen, Charles N. Tue . "Flow-synchronous field motion refrigeration". United States. https://www.osti.gov/servlets/purl/1375949.
@article{osti_1375949,
title = {Flow-synchronous field motion refrigeration},
author = {Hassen, Charles N.},
abstractNote = {An improved method to manage the flow of heat in an active regenerator in a magnetocaloric or an electrocaloric heat-pump refrigeration system, in which heat exchange fluid moves synchronously with the motion of a magnetic or electric field. Only a portion of the length of the active regenerator bed is introduced to or removed from the field at one time, and the heat exchange fluid flows from the cold side toward the hot side while the magnetic or electric field moves along the active regenerator bed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 22 00:00:00 EDT 2017},
month = {Tue Aug 22 00:00:00 EDT 2017}
}

Patent:

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Works referenced in this record:

Design and performance of a permanent-magnet rotary refrigerator
journal, December 2006


Factors limiting the operation frequency of magnetic refrigerators
journal, June 2007

  • Kuz’min, M. D.
  • Applied Physics Letters, Vol. 90, Issue 25, Article No. 251916
  • DOI: 10.1063/1.2750540

Large Electrocaloric Effect in Ferroelectric Polymers Near Room Temperature
journal, August 2008


Thirty years of near room temperature magnetic cooling: Where we are today and future prospects
journal, September 2008