Partager

Document IIF

Evaluation théorique des systèmes frigorifiques de supermarché au CO2 transcritique. I. Modélisation, simulation et optimisation de deux solutions.

Theoretical evaluation of transcritical CO2 systems in supermarket refrigeration. I. Modelling, simulation and optimization of two system solutions.

Auteurs : SAWALHA S.

Type d'article : Article, Article de la RIF

Résumé

Using CO2 transcritical system solutions in supermarket refrigeration is gaining interest with several installations already running in different European countries. Using a computer simulation model, this study investigates the performance of two main system solutions: centralized with accumulation tank at the medium temperature level and parallel with two separate circuits for low and medium temperature levels. Both system solutions are presented and the simulation model is described in details. Calculations have been performed to design the systems and optimize their performances where basic layout and size of each solution have been defined. For ambient temperature range of 10-40°C, the reference centralized system solution shows higher COP of about 4-21% than the reference parallel solution. Using two-stage compression in the centralized system solution instead of single stage will result in total COP which is about 5-22% higher than that of the reference centralized system and 13-17% higher than that of the improved two-stage parallel system. The two-stage centralized system solution gives the highest COP for the selected ambient temperature range. See also this Bulletin, reference 2008-0687.

Documents disponibles

Format PDF

Pages : 516-524

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 : Theoretical evaluation of transcritical CO2 systems in supermarket refrigeration. I. Modelling, simulation and optimization of two system solutions.
  • Identifiant de la fiche : 2008-0686
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
  • Date d'édition : 05/2008

Liens


Voir d'autres articles du même numéro (18)
Voir la source

Indexation