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Optimisation de la régulation de systèmes de conditionnement d'air au CO2 transcritique fonctionnant dans un climat subtropical.

Control optimization of transcritical CO2 air conditioning systems operating in subtropical climate.

Numéro : pap. ID: 470

Auteurs : PADALKAR A., MARTÍNEZ-BALLESTER S., KADAM A

Résumé

For vapour compression cycles where, heat rejection occurs under transcritical pressure, an optimum pressure that maximizes the COP exists. The most common application of this situation are CO2 transcritical systems. The paper presents two different air conditioning systems operating in subtropical conditions, which have different control techniques to set the gascooler pressure to its optimum value. Simulation studies has been carried out in order to get the optimum gas cooler pressure for each system, to compare differences of both systems and for analysing the COP improvement of these systems respect to the baseline split air conditioning system without pressure control. The simulated values of the optimum gascooler pressure for both systems were compared with other correlations of literature, showing different deviations depending on the analysed system.

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Pages : 8 p.

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Détails

  • Titre original : Control optimization of transcritical CO2 air conditioning systems operating in subtropical climate.
  • Identifiant de la fiche : 30003192
  • Langues : Anglais
  • Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Date d'édition : 21/08/2011

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