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DEVELOPMENT OF A PRACTICAL PULSE TUBE REFRIGERATOR: CO-AXIAL DESIGNS AND THE INFLUENCE OF VISCOSITY.

Author(s) : RICHARDSON R. N.

Type of article: Article

Summary

PULSE TUBE REFRIGERATION OFFERS THE POTENTIAL TO DEVELOP AN INHERENTLY RELIABLE CRYOCOOLER. REFRIGERATION RESULTS FROM A PROCESS KNOWN AS SURFACE HEAT PUMPING INVOLVING THE THERMAL INTERACTION BETWEEN A PULSATING GAS COLUMN AND ADJACENT TUBE WALL. A COMPACT CO-AXIAL DESIGN WHICH MAY BE READILY MINIATURIZED IS DESCRIBED IN DETAIL AND REFERENCE IS MADE TO A VALVED (OR ORIFICE) DESIGN WHICH OFFERS HIGHER PERFORMANCE. DEVELOPMENT OF SUCH A TUBE REQUIRES AN UNDERSTANDING OF THE INFLUENCE OF VISCOSITY ON SURFACE HEAT PUMPING. IT IS CONCLUDED THAT A TRULY PRACTICAL PULSE TUBE OFFERING A WORKING TEMPERATURE OF 70 K SHOULD BE POSSIBLE IF THE CO-AXIAL AND VALVED DESIGNS ARE COMBINED IN A SINGLE DEVICE.

Details

  • Original title: DEVELOPMENT OF A PRACTICAL PULSE TUBE REFRIGERATOR: CO-AXIAL DESIGNS AND THE INFLUENCE OF VISCOSITY.
  • Record ID : 1989-0408
  • Languages: English
  • Source: Cryogenics - vol. 28 - n. 8
  • Publication date: 1988

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