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Pertes dues à un échange de chaleur régénératif non équilibré dans les compresseurs frigorifiques.

[In Russian. / En russe.]

Auteurs : KOLOSOV M. A., BORISENKO A. V.

Type d'article : Article

Résumé

The processes in the world around involve losses, and the task of any engineer is to take them into account at the stage of a machine design. But the losses may be concealed coming into being in one process and showing quite in another one. Such losses are the losses in the compressors owing to a non­equilibrium regenerative heat exchange. In some constructions they may be completely absent but in the others they may occur and lead to reducing the compressor output or showing in a different way. Today the methods of the thermodynamic calculation of a compressor don’t include a direct calculation of losses due to a non­equilibrium regenerative heat exchange. The paper analyses the mechanism of losses that appear due to regenerative heat exchange during the process of a cyclic gas compression in the compressor; the method to calculate such losses is cited. It is based on the analytic solution of the problem of the non­stationary heat conductivity in a semi­bounded body at harmonic boundary conditions. As an example to use the method were calculated the losses due to non­equilibrium regenerative heat exchange in the PB100 refrigeration compressor, the losses share of the compressor consumed power was defined.

Détails

  • Titre original : [In Russian. / En russe.]
  • Identifiant de la fiche : 30019705
  • Langues : Russe
  • Source : Kholodilnaya Tekhnika - n. 5
  • Date d'édition : 05/2016

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