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Comparison and Prospect of Magnetic Heat Pump Cycle and Magnetic Refrigeration Cycle
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Geyao Xu1, Yaokang Zhang2, Haoxian Yu1, Fucheng Chen1, Xulong Hu1, Jianghong Wu1
Journal of Refrigeration | 2025, 46(4) : 1 - 12
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Journal of Refrigeration | 2025, 46(4): 1-12
Comparison and Prospect of Magnetic Heat Pump Cycle and Magnetic Refrigeration Cycle
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Geyao Xu1, Yaokang Zhang2, Haoxian Yu1, Fucheng Chen1, Xulong Hu1, Jianghong Wu1
Affiliations
  • 1.School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510640, China
  • 2.College of Ocean Engineering and Energy, Guangdong Ocean University, Zhanjiang, 524088, China
Published: 2025-08-16 doi: 10.12465/j.issn.0253-4339.2025.04.001
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Room-temperature magnetic heat pumps, one of the main applications of the magnetocaloric effect near room temperature, offer high efficiency, environmental protection, low noise, and low vibrations. This study discusses the application potential of a cascade magnetic heat pump cycle with a large temperature span by comparing the theoretical magnetic heat pump and refrigeration cycles. The results show that meeting the kilowatt-level heating capacity and achieving a wide temperature span of approximately 30 K in an actual heating scenario poses challenges to room-temperature magnetic heat pumps. The differences in design and application between the room-temperature magnetic heat pump and the existing room-temperature magnetic refrigeration prototypes are discussed, with a focus on magnetocaloric material selection strategies and performance evaluation indices suited for large temperature spans. The comparative analysis of magnetic heat pumps and magnetic refrigeration in this study also helps researchers to clarify the key to the design and application of large temperature span magnetic heat pumps based on existing research on room-temperature magnetic refrigeration. It promotes the comprehension and application of room-temperature magnetic heat pumps.

magnetocaloric effect  /  magnetic refrigeration  /  magnetic heat pump  /  cascade cycle  /  magnetocaloric material
Geyao Xu, Yaokang Zhang, Haoxian Yu, Fucheng Chen, Xulong Hu, Jianghong Wu. Comparison and Prospect of Magnetic Heat Pump Cycle and Magnetic Refrigeration Cycle[J]. Journal of Refrigeration, 2025 , 46 (4) : 1 -12 . DOI: 10.12465/j.issn.0253-4339.2025.04.001
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  • National Natural Science Foundation of China(52276008)
Appendix
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Year 2025 volume 46 Issue 4
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109
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Article Info
doi: 10.12465/j.issn.0253-4339.2025.04.001
  • Receive Date：2024-02-10
  • Online Date：2026-03-13
  • Published：2025-08-16
Article Data
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History
  • Received：2024-02-10
  • Revised：2024-04-03
  • Accepted：2024-06-02
Funding
National Natural Science Foundation of China(52276008)
Affiliations
    1.School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510640, China
    2.College of Ocean Engineering and Energy, Guangdong Ocean University, Zhanjiang, 524088, China

Corresponding:

Wu Jianghong, female, professor, School of Mechanical and Automotive Engineering, South China University of Technology, 86-13580467927, E-mail: . Research fields: room temperature magnetic refrigeration, air-conditioning and thermal management of new energy vehicles, energy saving of heat pumps, and application of artificial intelligence in refrigeration system.
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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