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Étude expérimentale sur un cycle frigorifique Joule-Thomson avec un mélange ternaire d’hydrocarbures pour un congélateur à basse température.

Experimental investigation on a Joule-Thomson refrigeration cycle with a ternary mixture of hydrocarbons for low-temperature freezer.

Numéro : 0332

Auteurs : LIU J., LIU Y., YAN G., YU J.

Résumé

In this paper, experimental researches of the -70°C low-temperature freezer based on the conventional Joule-Thomson refrigeration cycle are carried out. A ternary mixture of hydrocarbons with low global warming potential R601a/R290/R1150 is selected as the working fluid of the freezer. In this paper, the effects of the charged concentration and the total charge on the operation characteristics during cool-down and stable operation processes are analysed in detail. The experimental results show that this refrigerant mixture has great application potential in Joule-Thomson refrigeration cycle. The low temperatures below -70°C and low compressor pressure ratios can be achieved with this refrigerant. The optimal concentration of R601a/R290/R1150 is 65%/15%/20%. The cooling rate is faster when the total charge is 300g. The final cabinet temperature is lower when the total charge is 250g, which can reach -78°C. This research could help to promote the development of low-temperature freezers and has significant practical value.

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Format PDF

Pages : 7 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental investigation on a Joule-Thomson refrigeration cycle with a ternary mixture of hydrocarbons for low-temperature freezer.
  • Identifiant de la fiche : 30031755
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0332

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