Experimental Investigation of a Magnetic Refrigerator Based on Magnetically Active Regeneration.

Abstract

The concept of magnetically active regeneration is explored in a prototype magnetic refrigerator which has produced a refrigeration of 0.40 W at 3.79 K while rejecting 3.0 W to a 5.51 K sink. The prototype refrigerator consists of a Gadolinium-Gallium-Garnet(Gd3Ga5012)regenerator core excited by an AC superconducting solenoid. A reversing flow of 3 atm supercritical helium carries the heat of magnetization to the hot reservoir and refrigerates the cold reservoir with the cooling of demagnetization. Keywords: Cryogenics; Adiabatic Demagnetization.

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA180991

Entities

People

  • Carl P. Taussig
  • Joseph L. Smith Jr.
  • Yukikazu Iwasa

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Cryogenics
  • Demagnetization
  • Gadolinium
  • Magnetization
  • Magnets
  • Prototypes
  • Reservoirs
  • Solenoids

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Electrical Engineering
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics