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Experimental study on pulse tube refrigeration with helium and nitrogen mixtures.

Author(s) : GAN Z. H., CHEN G. B., THUMMES G., et al.

Type of article: Article

Summary

An experimental investigation on two-component multi-phase helium and nitrogen mixtures in a single-stage pulse tube refrigerator was carried out. The experimental results show that both COP and cooling power can be improved to some extent at above 70 K when the nitrogen fraction in the mixture is less than 25%. An approximate stable temperature platform at the triple point 63.15 K of nitrogen, which is independent of nitrogen's fraction, is obtained when the cooling power is below 7 W.

Details

  • Original title: Experimental study on pulse tube refrigeration with helium and nitrogen mixtures.
  • Record ID : 2002-1166
  • Languages: English
  • Source: Cryogenics - vol. 40 - n. 4-5
  • Publication date: 2000/04

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