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Analyse expérimentale d'un compresseur à spirale au R410A noyé dans l'huile.

Experimental analysis of oil flooded R410A scroll compressor.

Auteurs : RAMARAJ S., YANG B., BRAUN J. E., et al.

Type d'article : Article, Article de la RIF

Résumé

Approaching quasi-isothermal compression is possible by flooding the refrigerant vapor stream with a liquid that has high specific heat to absorb some heat of compression. To evaluate the benefits of liquid flooded compression, an R410A scroll compressor was tested over a wide range of operating conditions while flooding POE oil into the compression chamber using a hot-gas bypass test stand. The experimental results indicate that oil flooded compression leads to an increase in refrigerant mass flow rate and a decrease in compressor discharge temperature. Also, every operating condition has a maximum limit of possible oil injection, which depends on the system pressure ratio and the dimensions of the injection and discharge ports. By fitting the experimental data, a performance map for the compressor with oil flooding is developed using a semi-empirical model. This map can be used to assess the benefits of the oil flooding technology for various conditions employed in other applications.

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Format PDF

Pages : 185-195

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Détails

  • Titre original : Experimental analysis of oil flooded R410A scroll compressor.
  • Identifiant de la fiche : 30012395
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 46
  • Date d'édition : 10/2014

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