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Analyse de la performance des refroidisseurs à l'aide de valeurs de référence et d'analyse de l'enveloppement des données.

Chiller system performance benchmark by data envelopment analysis.

Auteurs : YU F. W., CHAN K. T.

Type d'article : Article, Article de la RIF

Résumé

The operation of chiller systems could account for the major proportion of electricity consumption in commercial and industrial facilities. This paper considers using data envelopment analysis (DEA) to facilitate benchmarking their energy performance. A system serving an institutional building was studied, which contains five sets of chillers, pumps and cooling waters. The scale, technical and overall efficiencies defined in DEA were calculated based on the correlation between the output [system coefficient of performance (COP)] and the inputs (load factor and temperatures of chilled water and condenser water). Results of DEA indicated that the existing operating strategy gave an average technical efficiency of 0.85 and fine-tuning the temperature-related variables could improve the average system COP from 3.87 to 4.56, the highest possible performance with technical efficiency of one. The significance of this study is to demonstrate how DEA helps rectify control and operational problems of chiller systems and to estimate their highest achievable performance.

Documents disponibles

Format PDF

Pages : 1815-1823

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 : Chiller system performance benchmark by data envelopment analysis.
  • Identifiant de la fiche : 30005891
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 7
  • Date d'édition : 11/2012

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