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Modeling and simulation of a transcritical CO2 heat pump system with an internal heat exchanger.

Modélisation et simulation d'un système de pompe à chaleur au CO2 transcritique avec échangeur de chaleur interne.

Numéro : pap. n. 169

Auteurs : SIAN R., WANG C. C.

Résumé

In this study, a transcritical carbon dioxide heat pump model consisting of five components (compressor, plate heat exchanger gas cooler, expansion device, finned-coil evaporator and tube-in-tube internal heat exchanger) is proposed. The detailed geometrical variation in each of the components and parametric influences of the fluids upon the system are taken into account. Computer code has been developed to evaluate both thermodynamic and transport properties for CO2, water and air in each of the components correspondingly, as well as a solution algorithm for the system without imposing excessive constrains. Moreover, the proposed study aims not only to improve the existing models, but also to provide a better understanding in realizing the systemic performance of CO2 as a working fluid. Furthermore, the results from this study may assist in the analysis and design of transcritical CO2 systems.

Documents disponibles

Format PDF

Pages : 9 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Modeling and simulation of a transcritical CO2 heat pump system with an internal heat exchanger.
  • Identifiant de la fiche : 30015334
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0169

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