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Cryogenic high-pressure thermomechanical pressurizer.

Number: 133

Author(s) : SYMONENKO I., CHYHRIN A., KOSTENKO Y.

Summary

The aim of the work is to create a prototype of a thermomechanical compressor to provide circulation of protective gas media. The most important operating factor, which largely determines the compression rate of the thermocompressor, is the ratio of absolute temperatures of the pumped medium at characteristic cycle points. When selecting the temperature characteristics of a supercharger, two designs are possible, each with one of the heat carriers close to ambient temperature. In a high-temperature thermocompressor, the second source temperature is limited by the strength properties of the materials of construction and usually does not exceed 800 K. In a low-temperature compressor, by reducing the absolute temperature of the cold "source" it is possible to realize compression ratios which cannot be reached in conventional thermomechanical compressors. A thermocompressor for pumping of inert gases and their mixtures was developed. If condensing components are present in the flow, heat transfer to liquid nitrogen is provided using an intermediate refrigerant. A sealless displacer movement mechanism was developed. Consumption characteristics depending on temperature conditions, discharge pressure and cycle period are obtained.

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Details

  • Original title: Cryogenic high-pressure thermomechanical pressurizer.
  • Record ID : 30031056
  • Languages: English
  • Source: Proceedings of the 17th IIR International Conference on Cryogenics, Dresden, Germany, april 25-28 2023
  • Publication date: 2023/04/25
  • DOI: http://dx.doi.org/10.18462/iir.cryo.2023.0133

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