Search for Optimum Refrigeration Cycleon Room-Temperature Magnetic Refrigeration

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  • ARAI Ryosuke
    Department of Urban Environment Systems, Faculty of Engineering, Chiba University Institute of Environmental Studies, Environment and Energy Materials Division, National Institute for Materials Science
  • TAMURA Ryo
    International Center for Materials Nanoarchitectonics, National Institute for Materials Science
  • BABA Koji
    Department of Urban Environment Systems, Faculty of Engineering, Chiba University
  • FUKUDA Hidehito
    Department of Urban Environment Systems, Faculty of Engineering, Chiba University Institute of Environmental Studies, Environment and Energy Materials Division, National Institute for Materials Science
  • NAKAGOME Hideki
    Department of Urban Environment Systems, Faculty of Engineering, Chiba University
  • NUMAZAWA Takenori
    Institute of Environmental Studies, Environment and Energy Materials Division, National Institute for Materials Science

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Other Title
  • 室温磁気冷凍における最適冷凍サイクル探索
  • シツオン ジキ レイトウ ニ オケル サイテキ レイトウ サイクル タンサク

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<p></p><p>Room-temperature magnetic refrigeration is attracting attention as a next-generation CFC-free refrigeration technology. However, the magnetic refrigeration is not put into practical use because of a low cooling capacity. The aim of this work is to increase the cooling capacity of the magnetic refrigerator by focusing on an improvement of the refrigeration cycle based on the Active Magnetic Regenerator (AMR). By using the hill-climbing method, we searched for the optimum refrigeration cycle depending on the temperature span and the AMR aspect ratio. The cooling capacity is calculated by the one-dimensional model of the AMR. The results of this study show that there are better cycles in obtaining high cooling capacity than conventional ones such as Brayton cycle. These cycles are constructed by the combination of Brayton and Ericsson cycles.</p><p></p>

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