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Performance study and optimization of a new type of 4 K GM/PT hybrid refrigerator.

Author(s) : YU Y. L., WANG L.

Summary

The authors proposed and designed a new type of 4 K GM/PT hybrid refrigerator, where the upper warm stage is a typical GM refrigeration cycle, and the cold stage is a pulse tube refrigerator, on which is thermodynamically coupled the upper warm stage. Four different types of phase shifting assembly were analyzed for adjustment of phase shift in the pulse tube. The volume ratio of the regenerator to pulse tube, the volume ratio of the cold auxiliary piston to pulse tube, and the initial phase angle between the cold auxiliary piston and main displacer are the three most important parameters. The authors summarize their previous work and further optimize the hybrid refrigerator with respect to the structure parameters and geometrical configuration.

Details

  • Original title: Performance study and optimization of a new type of 4 K GM/PT hybrid refrigerator.
  • Record ID : 2006-0014
  • Languages: English
  • Source: Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
  • Publication date: 2002/07/22

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