Document IIF

Performance d'un compresseur linéaire sans huile utilisant du R1234yf.

Performance of an oil-free linear compressor using R1234yf.

Numéro : pap. n. 1128

Auteurs : LI Z., LIANG K.

Résumé

This is the 13 slide PowerPoint presentation of Li and Lang's paper.

As an alternative to the hydrocarbons (HCs), R1234yf synthetic refrigerant from the family of the hydrofluoroolefins (HFOs), has emerged recently as a replacement fluid for R134a. The purpose of this study is to investigate the performance of an oil-free linear compressor using R1234yf operated at different pressure ratios for household refrigerators. A mathematical model for the oil-free linear compressor using R1234yf has been developed. The compressor stroke was set as 14 mm for minimum dead volume with the evaporator temperature of – 23 °C. The result shows that the bleed flow rate can be 5% of main flow rate, and the resonant frequency varies between 32.7 Hz and 35.3 Hz for pressure ratios of 5-12. Cylinder mean pressure, shaft power, bleed flow, and clearance seal power loss increase with the pressure ratio. At pressure ratio of 10, and clearance seal power loss represents 8% of shaft power.

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Pages : 13

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Détails

  • Titre original : Performance of an oil-free linear compressor using R1234yf.
  • Identifiant de la fiche : 30024954
  • Langues : Anglais
  • Source : 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
  • Date d'édition : 09/2018

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