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Évaluation des méthodes existantes de détermination de la charge en frigorigène pour les pompes à chaleur résidentielles à l'aide d'un banc d'essai virtuel.

Evaluation of existing refrigerant charge determination methods for residential heat pumps using a virtual test bench.

Numéro : 0157

Auteurs : JOUNAY M., CAURET O., TEUILLIERES C., TRAN C. T.

Résumé

Detecting and quantifying refrigerant leakages in residential heat pumps at an early stage is a major stake to maintain their efficiency and extend their lifespan. Several methods of leakage detection and refrigerant charge determination already exist. However, most focus on refrigerating or air-conditioning systems involving fixed-speed compressors and fixed orifice valves, lacking the dynamic aspects of more recent devices tending to smooth out the impacts of a leakage on the system.
This article first provides a brief insight on the state of the art of refrigerant charge determination methods. Two promising ones were selected, and a virtual test bench was developed and validated to evaluate them. The modeled system is an air-to-water heat pump for heating purpose involving a variable-speed compressor and an electronic expansion valve. These methods proved to be rather efficient on this numeric system, but further experimentation is required to assess them on a real device.

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Format PDF

Pages : 11

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Evaluation of existing refrigerant charge determination methods for residential heat pumps using a virtual test bench.
  • Identifiant de la fiche : 30031379
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0157

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