| 摘要: |
| 弹热制冷是由应力场驱动弹热材料相变而产生制冷效应的固态制冷技术，特点是无任何环境破坏作用，具有较高的理论制冷效率和制冷功率密度。近年来，欧美多个研究机构对弹热制冷技术进行了持续性研究，使该技术得到快速发展，已有多个可实际工作的弹热制冷原型机。本文从热力学理论基础、弹热工质、原型机开发和系统性能仿真等方面展开分析与讨论，为国内同行开展弹热制冷相关领域的研究提供参考。根据文献资料，现阶段弹热制冷机的制冷效率可达14%的热力完善度（外部参数），且有潜力在未来达到30%的热力完善度，从长远来看，材料层面的热力完善度可达80%，在系统层面还有较大性能提升空间。因此，可以持谨慎乐观的态度认为，弹热制冷技术在今后将得到更快、更广泛的发展和应用。 |
| 关键词: 非蒸气压缩制冷技术 固态制冷 形状记忆合金 制冷循环 原型机 |
| DOI： |
| 投稿时间：2017-02-22
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| 基金项目:国家自然科学基金（51606140）和中国博士后科学基金（2016M600789）资助项目。 |
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| State-of-the-art and Prospects of Elastocaloric Cooling Technology |
| Qian Suxin,Yuan Lifen,Yan Gang,Yu Jianlin |
| (School of Energy and Power Engineering, Xi’an Jiaotong University) |
| Abstract: |
| Elastocaloric cooling is a solid-state cooling technology based on the latent heat associated with the stress-induced phase transformation in elastocaloric materials. It is harmless to the environment, with remarkable theoretical system efficiency and cooling power density. Recently, rapid developments in elastocaloric cooling technology have been reported at research institutes in Europe and the USA. Some first-generation prototypes have been successfully developed and are properly functioning. As a guide for future related studies in China, this paper introduces the state-of-the-art and major challenges of this technology, including thermodynamic fundamentals, elastocaloric materials, prototype developments, and numerical simulations. Based on the literature, current elastocaloric refrigerators offer up to 14% Carnot cycle efficiency, a figure expected to exceed 30% in the near future; there is still significant potential for improvement when compared with the 80% Carnot efficiency offered by elastocaloric materials. Consequently, we can optimistically expect that elastocaloric cooling technology will experience faster growth and wider applicability in the future. |
| Key words: not-in-kind cooling technologies solid-state cooling shape memory alloys refrigeration cycle prototypes |
