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Confirmation expérimentale de l’amélioration des condenseurs à microcanaux par un circuit d’extraction au R134a.

Experimental confirmation of improvement of microchannel condensers by extraction circuitry using R134a.

Numéro : 2586

Auteurs : LI J., MUNCAN V., WANG D., HRNJAK P.

Résumé

This paper experimentally confirmed the benefits of liquid extraction in microchannel condensers. Experiments are conducted on a mobile air conditioning (MAC) system. R134a is used as the working fluid. An extraction tube with valve is added to one condenser so that it can work in two modes: the conventional mode and the extraction mode. Two types of experiments have been conducted: the heat exchanger-level test and the system-level test. In the heat exchanger-level tests, for the same inlet and outlet enthalpy on the refrigerant side, the extraction mode generates more condensate than the conventional mode. The extraction mode also lowers the refrigerant outlet enthalpy compared to the conventional baseline at the same refrigerant flow rate. The effects of air-side conditions have also been explored. In the system-level test, the air conditioning system with the extraction-mode condenser achieves a higher COP than the baseline under the same superheat and refrigerating cooling capacity.
 

Documents disponibles

Format PDF

Pages : 10

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental confirmation of improvement of microchannel condensers by extraction circuitry using R134a.
  • Identifiant de la fiche : 30028559
  • Langues : Anglais
  • Source : 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 05/2021
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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