A multi-material cascade elastocaloric cooling device for large temperature lift
Guoan Zhou (),
Zexi Li,
Qiuhong Wang,
Yuxiang Zhu,
Peng Hua,
Shuhuai Yao () and
Qingping Sun ()
Additional contact information
Guoan Zhou: The Hong Kong University of Science and Technology
Zexi Li: The Hong Kong University of Science and Technology
Qiuhong Wang: Wuhan University
Yuxiang Zhu: The Hong Kong University of Science and Technology
Peng Hua: Harbin Institute of Technology
Shuhuai Yao: The Hong Kong University of Science and Technology
Qingping Sun: The Hong Kong University of Science and Technology
Nature Energy, 2024, vol. 9, issue 7, 862-870
Abstract:
Abstract Elastocaloric cooling using shape memory alloys is a promising candidate for next-generation environmentally friendly refrigeration. The temperature lift (Tlift), that is, the ability of the cooling device to transfer heat from a low-temperature source to a high-temperature sink, is a critical performance indicator. However, increasing the Tlift of existing elastocaloric devices is difficult due to the narrow temperature window across which the individual elastocaloric materials exhibit superelasticity (for example, ≤50 K for commercially-available NiTi shape memory alloys). Here we construct a multi-material cascade elastocaloric cooling device using NiTi with three different temperatures at which the martensite-to-austenite transition is completed, also called austenite finish temperature. By matching the working temperature distribution of the NiTi units with their austenite finish temperatures, we expand the device’s superelastic temperature window to over 100 K and achieved a Tlift of 75 K on the water side. This work demonstrates the great potential of multi-material cascade elastocaloric regenerators for space cooling in the near future.
Date: 2024
References: Add references at CitEc
Citations:
Downloads: (external link)
https://www.nature.com/articles/s41560-024-01537-3 Abstract (text/html)
Access to the full text of the articles in this series is restricted.
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:nat:natene:v:9:y:2024:i:7:d:10.1038_s41560-024-01537-3
Ordering information: This journal article can be ordered from
https://www.nature.com/nenergy/
DOI: 10.1038/s41560-024-01537-3
Access Statistics for this article
Nature Energy is currently edited by Fouad Khan
More articles in Nature Energy from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().