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Réduction de la charge en frigorigène dans des petits systèmes de froid commercial.

Refrigerant charge reduction in small commercial refrigeration systems.

Numéro : pap. 2467

Auteurs : JIANG L., HRNJAK P.

Résumé

This paper presents analysis of location of refrigerant inventory and theoretical results of charge reduction in a typical bottle cooler. The original unit was first characterized by determining its capacity, the coefficient of performance (COP), pull-down characteristics and total charge using non-destructive instrumentation. After that the unit was instrumented by insertion of valves to separate main components and allow measurements of the charge in each of them, as well as pressure transducers, mass flow meter and thermocouples. Condenser is found to be the component that retains the most charge. The system was modelled using Engineering Equation Solver (EES) for calculation of performance and charge. Models are fully validated using steady state experimental results. Discussion of the results and direction for the charge reduction is provided.

Documents disponibles

Format PDF

Pages : 9 p.

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 : Refrigerant charge reduction in small commercial refrigeration systems.
  • Identifiant de la fiche : 30013412
  • Langues : Anglais
  • Source : 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 14/07/2014

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