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Optimisation de la conception d’échangeurs de chaleur à l’aide de tubes non circulaires de forme optimisée pour un système de conditionnement d’air résidentiel utilisant du R290.

Design optimization of heat exchangers utilizing shape-optimized, non-round tubes for a residential air-conditioning system using R290.

Numéro : 1241

Auteurs : MERUVA V. P., TANCABEL J., AUTE V.

Résumé

Hydrocarbon (HC) refrigerants have emerged as promising replacements to hydrofluorocarbons due to their low GWP and promising thermophysical properties. This transition will require high-performance heat exchangers (HXs) with significant size, weight, cost, and refrigerant charge reductions compared to the current state-of-the-art to comply with flammable refrigerant charge limits. In this paper, an approximation-assisted optimization framework for HXs with shape-optimized, non-round tubes is utilized to optimize the condenser and the evaporator for a 10.55 kW (3-Ton) residential air-conditioning system using R290. Preliminary simulations show that the optimal HXs can achieve at least 20% reductions in airside pressure drop, envelope volume, and material volume along with more than 30% reduction in system refrigerant charge while maintaining or improving system performance. This study provides critical insights into the viability and advantages of using R290 in residential air-conditioning applications to help facilitate the adoption of flammable and mildly-flammable refrigerants.

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Format PDF

Pages : 9 p.

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 : Design optimization of heat exchangers utilizing shape-optimized, non-round tubes for a residential air-conditioning system using R290.
  • Identifiant de la fiche : 30032741
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
  • Date d'édition : 08/2024
  • DOI : http://dx.doi.org/10.18462/iir.gl.2024.1241

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