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Amélioration de la performance d’un condenseur par séparation de phase confirmée par étude expérimentale et par modélisation.

Improvement of condenser performance by phase separation confirmed experimentally and by modeling.

Auteurs : LI J., HRNJAK P.

Type d'article : Article, Article de la RIF

Résumé

This paper presents results of an experimental study to determine the effect of vapor– liquid separation in a header of microchannel condenser for a MAC system. R134a is used as the working fluid. A condenser with separation and a baseline condenser identical on the air side have been tested to evaluate the difference in the performance due to separation. Two categories of experiments have been conducted: the heat exchanger-level test and the system-level test. In the heat exchanger-level test, it is found that at the same inlet and outlet temperatures the separation condenser generates 1.6% to 7.4% more condensate flow rate than the baseline. The separation condenser also lowers the refrigerant exit temperature compared with the baseline at the same condensate flow rate. The improvement in the separation condenser confirms the results by a model. In the system-level test, COP is compared under the same superheat, subcooling and refrigerating capacity. System with separation condenser shows up to 6.6% a higher COP than the system with baseline condenser.

Documents disponibles

Format PDF

Pages : 60-69

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 : Improvement of condenser performance by phase separation confirmed experimentally and by modeling.
  • Identifiant de la fiche : 30021560
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 78
  • Date d'édition : 06/2017
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.03.018

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