A LABORATORY TEST STAND FOR STUDIES OF MAGNETOCALORIC MATERIALS

A. Czernuszewicz, J. Kaleta, D. Lewandowski, M. Królewicz, P. Wiewiórski

Abstract

The paper presents a test stand to study the magnetocaloric effect. The stand utilises a magnetocaloric material, gadolinium, as a refrigerant. This material was chosen, because of good magnetocaloric properties and suitable work temperature close to the room temperature. The magnetic field of 1 T is generated by cylindrical Halbach array which is a special arrangement of permanent magnets that concentrate and homogenize the magnetic field in the inner gap of the flux source. As a heat transfer medium a special liquid was selected. In addition, the paper provides first results from an investigation. Results amounted to 1.6 ºC temperature difference between hot and cold heat exchanger.

Keywords

smart materials, magnetic refrigeration, gadolinium

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IMEKO-YSESM-2012-23.pdf

DOI

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IMEKO TC

TC15 - Experimental Mechanics

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