ES2188322A1 - Use of molecular aggregates as magnetic coolers. - Google Patents

Use of molecular aggregates as magnetic coolers.

Info

Publication number
ES2188322A1
ES2188322A1 ES200001534A ES200001534A ES2188322A1 ES 2188322 A1 ES2188322 A1 ES 2188322A1 ES 200001534 A ES200001534 A ES 200001534A ES 200001534 A ES200001534 A ES 200001534A ES 2188322 A1 ES2188322 A1 ES 2188322A1
Authority
ES
Spain
Prior art keywords
magnetic
molecular aggregates
coolers
spin
existence
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES200001534A
Other languages
Spanish (es)
Other versions
ES2188322B1 (en
Inventor
Palacios Javier Tejada
Canals Francesc Torres
Janoher Xavier Bohigas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carburos Metalicos SA
Original Assignee
Sociedad Espanola de Carburos Metalicas SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sociedad Espanola de Carburos Metalicas SA filed Critical Sociedad Espanola de Carburos Metalicas SA
Priority to ES200001534A priority Critical patent/ES2188322B1/en
Publication of ES2188322A1 publication Critical patent/ES2188322A1/en
Application granted granted Critical
Publication of ES2188322B1 publication Critical patent/ES2188322B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

Use of molecular aggregates as magnetic coolers. The molecular aggregates of this invention are applied as magnetic coolers at temperatures below 30K, especially at temperatures below 10K. The molecular aggregates of the invention include metal atoms linked using bridge bindings whose common characteristic is, on the one hand, the existence of a strong magnetic attraction of exchange between the metal atoms so that each molecule has a high value of spin and magnetic moment and, on the other hand, the existence of a direction of easy magnetisation due to the symmetry of the molecule according to which the orientation of the spin is established and the magnetic moment. The molecular aggregates of this invention are materials that possess a very high magnetic anisotropy. In the molecular aggregates of the invention, the magnetisation has a maximum operating and blocking temperature. Furthermore, the temperature can vary depending on the magnetic field applied and the speed of sweeping of the field.<IMAGE>
ES200001534A 2000-06-09 2000-06-09 USE OF MOLECULAR AGGREGATES AS MAGNETIC REFRIGERANTS. Expired - Fee Related ES2188322B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200001534A ES2188322B1 (en) 2000-06-09 2000-06-09 USE OF MOLECULAR AGGREGATES AS MAGNETIC REFRIGERANTS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200001534A ES2188322B1 (en) 2000-06-09 2000-06-09 USE OF MOLECULAR AGGREGATES AS MAGNETIC REFRIGERANTS.

Publications (2)

Publication Number Publication Date
ES2188322A1 true ES2188322A1 (en) 2003-06-16
ES2188322B1 ES2188322B1 (en) 2004-10-16

Family

ID=8493953

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200001534A Expired - Fee Related ES2188322B1 (en) 2000-06-09 2000-06-09 USE OF MOLECULAR AGGREGATES AS MAGNETIC REFRIGERANTS.

Country Status (1)

Country Link
ES (1) ES2188322B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2479802C2 (en) * 2010-12-02 2013-04-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тверской государственный университет" Working body of magnetic thermal machine from anisotropic magnetic material
EP3671065A1 (en) * 2018-12-20 2020-06-24 Commissariat à l'énergie atomique et aux énergies alternatives Cooling device comprising a paramagnetic garnet ceramic

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060478A (en) * 1984-07-27 1991-10-29 Research Development Corporation Of Japan Magnetical working amorphous substance
EP0477917A2 (en) * 1990-09-28 1992-04-01 Mitsubishi Materials Corporation Magnetic substances for refrigeration at very low temperatures
US5213630A (en) * 1984-03-30 1993-05-25 Tokyo Institute Of Technology Magnetic materials for magnetic refrigeration
US6022486A (en) * 1988-02-02 2000-02-08 Kabushiki Kaisha Toshiba Refrigerator comprising a refrigerant and heat regenerative material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213630A (en) * 1984-03-30 1993-05-25 Tokyo Institute Of Technology Magnetic materials for magnetic refrigeration
US5060478A (en) * 1984-07-27 1991-10-29 Research Development Corporation Of Japan Magnetical working amorphous substance
US6022486A (en) * 1988-02-02 2000-02-08 Kabushiki Kaisha Toshiba Refrigerator comprising a refrigerant and heat regenerative material
EP0477917A2 (en) * 1990-09-28 1992-04-01 Mitsubishi Materials Corporation Magnetic substances for refrigeration at very low temperatures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2479802C2 (en) * 2010-12-02 2013-04-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тверской государственный университет" Working body of magnetic thermal machine from anisotropic magnetic material
EP3671065A1 (en) * 2018-12-20 2020-06-24 Commissariat à l'énergie atomique et aux énergies alternatives Cooling device comprising a paramagnetic garnet ceramic

Also Published As

Publication number Publication date
ES2188322B1 (en) 2004-10-16

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