Accession Number:

ADA180991

Title:

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

Descriptive Note:

Final rept. May 84-May 86,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE CRYOGENIC ENGINEERING LAB

Report Date:

1987-03-01

Pagination or Media Count:

131.0

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-GarnetGd3Ga5012regenerator 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.

Subject Categories:

  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE