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

Author(s) : CHEN Z., LIU S., SHA X., SHEN Y., YIN W., HUANG Z., DING L., JIANG Z., GAN Z., WU Y.

Type of article: IJR article

Summary

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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Pages: 89-94

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Details

  • Original title: Essential improvement of the JT cryocooler working at liquid helium temperature for space: Efficient and lightweight.
  • Record ID : 30032818
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 168
  • Publication date: 2024/12
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2024.08.006

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