Essential improvement of the JT cryocooler working at liquid helium temperature for space: Efficient and lightweight

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2024-09-19 DOI:10.1016/j.ijrefrig.2024.08.006

引用次数: 0

Abstract

Due to long lifetime, low level vibration and negligible electromagnetic interference, the Joule-Thomson (JT) cryocooler working at liquid helium temperature has been used in space. However, its cooling capacity and thermodynamic efficiency still need to be further improved under a certain mass limit, which is an essential improvement for space-efficient application of the JT cryocooler. Therefore, in this study, optimization design is carried out for a JT cryocooler working at liquid helium temperature. Based on the modification of Stirling cryocooler, pulse tube cryocooler and JT compressor, the developed JT cryocooler can provide a cooling capacity of 0.36 W at 4.18 K while the total input power and the total mass (without cryostat) are 1157 W and 26.8 kg, respectively. Compared with the literature research, it can be found that the developed JT cryocooler is suitable for space applications.

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对在液氦温度下工作的 JT 低温冷却器进行了重要改进：高效、轻巧

在液氦温度下工作的焦耳-汤姆逊（JT）低温冷却器具有寿命长、振动小和电磁干扰小等优点，已被用于太空。然而，在一定的质量限制下，其冷却能力和热力学效率仍需进一步提高，这是 JT 低温冷却器在太空高效应用的必要改进。因此，本研究对在液氦温度下工作的 JT 低温冷却器进行了优化设计。在对斯特林低温冷却器、脉冲管低温冷却器和 JT 压缩机进行改进的基础上，所开发的 JT 低温冷却器在 4.18 K 时可提供 0.36 W 的冷却能力，而总输入功率和总质量（不含低温恒温器）分别为 1157 W 和 26.8 kg。与文献研究相比，可以发现所开发的 JT 低温冷却器适用于空间应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.