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Cascade refrigerators with vortex tube stage.

Author(s) : ARKHAROV I. A., LUCKYANOV P. A., NAVASARDYAN E. S., et al.

Summary

The paper presents a new and different application of a vortex tube in air-conditioning systems, and freezers for biomaterial conservation are considered. Compressed air goes through the standard air conditioner where it is cooled up to 5 °C and then it goes to the vortex tube cascade. The outlet temperature of a cold stream is -15 to -25 °C. Temperatures of -15 to -70 °C can be reached in the two-cascade cycle which consists of a standard vapour-compressed refrigerator that is used as a precooling stage, and of a vortex tube as a final stage. Such refrigerators, as alternatives to existing freezers at -70 °C, are offered for small-scale systems for conservation of biomaterials. The main advantages of the refrigerator proposed are as follows: homogeneous cooling of specimens by airflow, ecologically safe, reliable, and low cost.

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Details

  • Original title: Cascade refrigerators with vortex tube stage.
  • Record ID : 2004-1178
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17

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