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Étude analytique des performances du système d’un camion frigorifique au R134a, R404A et R744.

Analytical study on performance of R134a, R404A, and R744 refrigeration truck system.

Numéro : No 288

Auteurs : SHIN Y., KIM Y., KIM M., CHO H.

Résumé

An automotive air-conditioning system and refrigeration truck is normally used refrigeration R134a and R404A. The natural refrigerant R744 is one of alternative refrigerant for refrigeration truck. In this study, the theoretical study on the performance comparison between R744, R134a, and R404A for the refrigeration truck. The cooling capacity, compressor work, and COP of R744 refrigeration system were analyzed according to outdoor air temperature and compressor rotating speed. Also, those are compared with those of R404A and R134a system. As a result, the performance of all systems with the outdoor temperature was rapidly decreased. The performance decrement of R404A is relatively higher than that of other system. In the change of RPM, the increasing rate of cooling capacity and compressor work of the R404A, R134a, and R744 system reached the highest at 1500 RPM. The data of this study is to provide the basic performance data of refrigeration system of refrigeration truck.

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Pages : 5 p.

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Détails

  • Titre original : Analytical study on performance of R134a, R404A, and R744 refrigeration truck system.
  • Identifiant de la fiche : 30030083
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Date d'édition : 31/08/2021

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