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Document IIF

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

Experimental study of a high-tolerance piston-cylinder pair in the alpha Ross-yoke Stirling refrigerator.

Auteurs : SMIRNOV D., DVORTSOV V., SAICHENKO A., et al.

Type d'article : Article, Article de la RIF

Résumé

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.

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Format PDF

Pages : 235-245

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    20 €

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Détails

  • Titre original : Experimental study of a high-tolerance piston-cylinder pair in the alpha Ross-yoke Stirling refrigerator.
  • Identifiant de la fiche : 30025619
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 100
  • Date d'édition : 04/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2019.01.018

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