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Document IIF

Simulation du cycle transcritique d'une pompe à chaleur au CO2 utilisée dans les applications de refroidissement et de chauffage + erratum.

Simulation of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications + erratum.

Auteurs : SARKARA J., BHATTACHARYYA S., GOPAL M. R.

Type d'article : Article, Article de la RIF

Résumé

A steady state simulation model has been developed to evaluate the system performance of a transcritical carbon dioxide heat pump for simultaneous heating and cooling. The simulated results are found to be in reasonable agreement with experimental results reported in the literature. Such a system is suitable, for example, in dairy plants where simultaneous cooling at 4°C and heating at 73°C are required. The optimal COP was found to be a function of the compressor speed, the coolant inlet temperature to the evaporator and inlet temperature of the fluid to be heated in the gas cooler and compressor discharge pressure. An optimizing study for the best allocation of the fixed total heat exchanger inventory between the evaporator and the gas cooler based on the heat exchanger area has been carried out. The effect of heat transfer in the heat exchangers on system performance has been presented as well. Finally, a novel nomogram has been developed and it is expected to offer useful guidelines for system design and its optimisation.

Documents disponibles

Format PDF

Pages : 735-743

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 : Simulation of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications + erratum.
  • Identifiant de la fiche : 2006-2047
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 5
  • Date d'édition : 08/2006

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