期刊
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
卷 104, 期 -, 页码 42-50出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2019.04.029
关键词
Magnetic refrigeration; Asymmetrical regenerator; Prototype; Flow control; Rotary
资金
- BASF New Business [IPP I28]
- Guangdong Provincial Science and Technology Program [2015A050502015]
- Guangzhou Municipal Science and Technology Program [2016201604030070, 201605130138149, 201604016103]
- Natural Science Foundation of Guangdong Province [2016A030313494, 2018A030313615]
- Zhongshan Municipal Science and Technology Program (Platform construction and innovation team)
- Guangzhou Ethics Project
A rotary active magnetic regeneration refrigerator prototype named FAME Cooler was developed for studying the performance of different magnetocaloric materials in a realistic practical environment. The rotary magnetic field source generates an average magnetic field of 0.875 T within a volume of 0.71 l The regenerator is designed asymmetrically and holds in total 1.18 kg of gadolinium spheres for a first performance test. Combined with a real-time controlled programmable solenoid-valves system, different working parameters or thermodynamic cycles can be applied. In the performance test, while the temperature of system hot side was fixed at 295 K, under a utilization condition of 0.25, this prototype achieved a maximum zero-span cooling power of 162.4 W, and a zero-power temperature span of 11.6 K. Under a utilization condition of 0.15, a maximum COP of 1.85 was reached. These performance metrics are comparable with existing magnetic heat pump devices of the same scale. (C) 2019 Elsevier Ltd and IIR. All rights reserved.
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