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Qian S, Catalini D, Muehlbauer J, Liu B, Mevada H, Hou H, Hwang Y, Radermacher R, Takeuchi I. High-performance multimode elastocaloric cooling system. Science 2023; 380:722-727. [PMID: 37200413 DOI: 10.1126/science.adg7043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/13/2023] [Indexed: 05/20/2023]
Abstract
Developing zero-global warming potential refrigerants has emerged as one area that helps address global climate change concerns. Various high-efficiency caloric cooling techniques meet this goal, but scaling them up to technologically meaningful performance remains challenging. We have developed an elastocaloric cooling system with a maximum cooling power of 260 watts and a maximum temperature span of 22.5 kelvin. These values are among the highest reported for any caloric cooling system. Its key feature is the compression of fatigue-resistant elastocaloric nitinol (NiTi) tubes configured in a versatile multimode heat exchange architecture, which allows the harnessing of both high delivered cooling power and large temperature spans. Our system shows that elastocaloric cooling, which only emerged 8 years ago, is a promising direction for commercializing caloric cooling.
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Affiliation(s)
- Suxin Qian
- Department of Refrigeration and Cryogenic Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
- Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
| | - David Catalini
- Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
| | - Jan Muehlbauer
- Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
| | - Boyang Liu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Het Mevada
- Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
| | - Huilong Hou
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, People's Republic of China
- Zhongfa Aviation Institute of Beihang University, Hangzhou, Zhejiang 310023, People's Republic of China
- Tianmushan Laboratory (Zhejiang Provincial Laboratory for Aviation), Hangzhou, Zhejiang 310023, People's Republic of China
| | - Yunho Hwang
- Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
| | - Reinhard Radermacher
- Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
| | - Ichiro Takeuchi
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
- Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, MD 20742, USA
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