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Étude expérimentale d’un cycle frigorifique Joule-Thomson avec un mélange d’hydrocarbures R1150/R600 pour un congélateur commercial de petite taille à basse température à -68 °C.

Experimental investigation on a Joule-Thomson refrigeration system with hydrocarbon mixtures R1150/R600 for -68°C light commercial lowtemperature freezer.

Numéro : 1018

Auteurs : ZOU L., YU M., BAI T., QIAN S., YU J.

Résumé

In this paper, a -68℃ low-temperature freezer based on Joule-Thomson cycle is developed by using the natural binary mixed refrigerant R1150/R600. The experiment demonstrates the feasibility of using R1150/R600 freezer to obtain lowtemperature refrigeration below -68℃. The effects of mass fraction ratio, refrigerant charge and ambient temperature on the dynamic operating characteristics of the freezer during on-off and cool-down performance are discussed in detail. It is shown that 160g is the optimal refrigerant charge. Additionally, the concentration of the mixed refrigerant has a significant effect on the cool-down performance of the freezer. When the concentration of R1150 is 32.5%, the lowest freezing temperature can be achieved, but its daily power consumption is not the lowest. When the concentration of R1150 is 27.5%, it meets the cool-down requirements and has the lowest daily energy consumption of 5.94 kWh/24h.

Documents disponibles

Format PDF

Pages : 18 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 system with hydrocarbon mixtures R1150/R600 for -68°C light commercial lowtemperature freezer.
  • Identifiant de la fiche : 30032566
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 8th IIR International Conference on Sustainability and the Cold Chain. Proceedings: June 9-11 2024
  • Date d'édition : 11/06/2024
  • DOI : http://dx.doi.org/10.18462/iir.iccc2024.1018

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