Étude expérimentale d'un couple piston-cylindre haute tolérance dans un réfrigérateur Stirling alpha à embiellage Ross-yoke

Translated title of the contribution: Experimental study of a high-tolerance piston-cylinder pair in the alpha Ross-yoke Stirling refrigerator

D. Smirnov, V. Dvortsov, A. Saichenko, M. Tkachenko, M. Kukolev, A. Bischi, H. Ouerdane

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Optimal design of the sealing mechanism in the piston-cylinder pair of Stirling refrigerators is beneficial in terms of system's cost, reliability, efficiency and cooling capacity; yet this is often overlooked in the literature. We report on our experimental study of a high-tolerance lubricated piston-cylinder pair with cast iron-steel materials as an integral part of the Ross-yoke alpha-type Stirling refrigerator. We measured: the gas leakage rate through the sealing gap; the friction force in the piston-cylinder pair; and the refrigerator temperature during operation. Our results show that owing to careful design, the loss of the ideal cooling capacity due to gas leakages amounted to 2.2%, and that the friction loss to the ideal cycle power input was 8.1%. We also discuss which type of lubricants demonstrates a higher resistance to operational loading and what engineering problems must be solved for reliable operation of the sealing mechanism.

Translated title of the contributionExperimental study of a high-tolerance piston-cylinder pair in the alpha Ross-yoke Stirling refrigerator
Original languageFrench
Pages (from-to)235-245
Number of pages11
JournalInternational Journal of Refrigeration
Volume100
DOIs
Publication statusPublished - Apr 2019

Keywords

  • Cooling technologies
  • Refrigerator
  • Stirling cycle

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