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Experimental results for active magnetic regenerative refrigeration apparatus using twin beds

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Abstract

Magnetic refrigeration is based on the magnetocaloric effect, which refers to the ability of some materials to heat up when magnetized and cool down when demagnetized. An active magnetic regenerative (AMR) refrigeration apparatus using twin beds and a permanent magnet array was constructed for an experimental study. The twin AMR beds were filled with gadolinium spheres. They were magnetized and demagnetized in turn using a permanent magnet array and exchanged heat by means of water flowing back and forth between the hot and cold sides. The temperatures of various locations within the AMR beds were measured in real time. Herein, the experimental results using the apparatus are discussed.

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Authors and Affiliations

  1. Department of Precision Mechanical Engineering, Gangneung-Wonju National University, Wonju, Gangwon, 220-711, Korea

    Jong Suk Lee

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  1. Jong Suk Lee
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Correspondence to Jong Suk Lee.

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Recommended by Associate Editor Jae Dong Chung

Jong Suk Lee is a professor in the Department of Precision Mechanical Engineering of Gangneung-Wonju National University. He graduated from Seoul National University majoring Mechanical Engineering in 1982. He received a master’s degree in 1987 and a Ph.D. degree in 1993 from Graduate College at Iowa State University. Currently he is involved in research on room-temperature magnetic refrigeration.

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Lee, J.S. Experimental results for active magnetic regenerative refrigeration apparatus using twin beds. J Mech Sci Technol 29, 2237–2241 (2015). https://doi.org/10.1007/s12206-015-0444-z

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  • DOI: https://doi.org/10.1007/s12206-015-0444-z

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