Characterization of an Active Magnetic Regenerative Cycle
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- T. SAITO Akiko
- Corporate Research & Development Center, Toshiba Corporation
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- KAJI Shiori
- Corporate Research & Development Center, Toshiba Corporation
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- KOBAYASHI Tadahiko
- Corporate Research & Development Center, Toshiba Corporation
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- NAKAGOME Hideki
- Department of Urban Environment System, Chiba University
Bibliographic Information
- Other Title
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- 能動的蓄冷式磁気冷凍の基礎的研究
- 能動的蓄冷式磁気冷凍の基礎的研究 : 磁気冷凍の常温域応用を目指して
- ノウドウテキチクレイシキ ジキ レイトウ ノ キソテキ ケンキュウ : ジキ レイトウ ノ ジョウオンイキ オウヨウ オ メザシテ
- ―磁気冷凍の常温域応用を目指して―
- – Toward Room-temperature Application of AMR Cycle –
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Abstract
The development of magnetic refrigerants and basic research on active magnetic regenerative (AMR) refrigeration at room temperature were performed. Temperature differences between the hot and cold ends of the AMR unit of more than 45 degrees, and achieving the lowest temperature of minus 10 degrees were obtained by operating the AMR cycle with a NdFeB Halbach-type permanent magnet and spherical-shaped GdY magnetic refrigerants. In the case of the La(Fe,Co,Si)13 compound, the temperature difference between the ends of the AMR unit reached only 21 degrees. This is mainly attributed to the fact that larger specific heat provides smaller temperature changes in the magnetocaloric effect even if the La(Fe,Co,Si)13 compound shows larger magnetic entropy change than Gd alloys. At the same time, large specific heat is effective for load characteristics. Model calculations indicated that multi-layered magnetic refrigerants whose magnetic transition temperatures are tailored to the temperature gradient in the AMR unit improve both temperature difference and load characteristics. Ideal design for achieving optimized heat flow and regeneration leads to the room-temperature application.
Journal
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- TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
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TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 50 (2), 88-95, 2015
CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390001204613943808
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- NII Article ID
- 130005062240
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- NII Book ID
- AN00333419
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- ISSN
- 18800408
- 03892441
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- NDL BIB ID
- 026193152
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed