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Analyse comparative de deux types de compresseurs volumétriques utilisés pour le conditionnement d'air.

Comparative analysis of two types of positive displacement compressors for air conditioning applications.

Numéro : pap.1331

Auteurs : DINIZ M. C., DESCHAMPS C. J.

Résumé

Different types of positive displacement compressors are employed in low-capacity air conditioning applications. Understanding the advantages and drawbacks of each of these technologies is important in order to identify the ranges of cooling capacities at which a specific compression technology is more efficient. This paper presents a comparative analysis between two positive displacement compressors (rolling piston and scroll) designed for air conditioning applications. The compressors operate with R-22 and present a nominal cooling capacity of 18000 BTU/h at the AHRI-A checkpoint condition. First, the compressors were tested in a hot-cycle test bench to measure the mass flow rate and power consumption for MBP and HBP operating conditions. The results showed that the most efficient compressor depends on the operating condition. After this, simulation models for each compressor were validated against the experimental data, showing good agreement. Therefore, through the simulation models, it was possible to evaluate the effect of different aspects, such as leakage, heat transfer and discharge process, on the efficiency of each compressor.

Documents disponibles

Format PDF

Pages : 10 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 : Comparative analysis of two types of positive displacement compressors for air conditioning applications.
  • Identifiant de la fiche : 30019554
  • Langues : Anglais
  • Source : 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
  • Date d'édition : 11/07/2016

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