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Comparaison et analyse multi-objectifs d’un système frigorifique en cascade utilisant le CO2 comme frigorigène pour le cycle à basse température.

Comparison and analysis on multi-objectives of cascade refrigeration system using CO2 as low temperature cycle refrigerant.

Numéro : pap. 74

Auteurs : NING J., ZHENG T.

Résumé

In this paper, based on the thermodynamics, economy and environment cascade refrigeration systems of R290, R32, R717 and R404A as high-temperature cycle refrigerant respectively, CO2 as low-temperature cycle refrigerant are compared and analyzed in multiple target. It is concluded that, under the same conditions, the cascade refrigeration system using R717 as high-temperature circuit refrigerant has higher thermal efficiency, better economy and more friendly environment compared to the other three cascade
refrigeration systems. R290 / CO2 and R32/CO2 cascade refrigeration systems have similar thermal efficiency and friendly environment, but the R290 / CO2 cascade refrigeration system has better economy. The coefficient of performance, economyand environment of the R404A / CO2 cascade refrigeration system compared with that of the R717/CO2 , R290 / CO2 and R32 / CO2 cascade refrigeration system respectively decreace by14.1%, 7.5%, 13.7%, 8.0%, 5.0%, 7.8% and 6.6%, 4.4%, 6.8%.

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Pages : 6

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    20 €

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    Gratuit

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Détails

  • Titre original : Comparison and analysis on multi-objectives of cascade refrigeration system using CO2 as low temperature cycle refrigerant.
  • Identifiant de la fiche : 30023430
  • Langues : Anglais
  • Source : 5th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Beijing, Chine, 6-8 avril 2018
  • Date d'édition : 06/04/2018
  • DOI : http://dx.doi.org/10.18462/iir.iccc.2018.0074

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