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Evaluation de la pertinence de modèles basés sur des données empiriques pour la prévision de la performance énergétique des refroidisseurs de liquide.

Evaluation of the suitability of empirically based models for the prediction of energy performance of liquid chillers.

Auteurs : LEE T. S., LU W. C.

Résumé

This paper presents the results of comparing the suitability of six reported chiller performance models to be used for energy analysis. The data adopted to validate the models comprise of two broad classes including constant and variable chilled water flow rates. There are 373 sets of data in total. The optimal regression coefficient for each empirically based model is obtained by using the least square method. Criteria for evaluating the model suitability are based on the coefficient of variation of root-mean-square error (CVRMSE). The results show that among the six empirically based performance models for liquid chillers chosen in the study, the multivariate polynomial regression model possesses the best prediction accuracy. Its average CVRMSE value is around 0.66%. The results of the study could serve as a reference for the selection of empirically based models for liquid chillers when applied to the energy analysis of buildings.

Documents disponibles

Format PDF

Pages : pp. 641-646

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 : Evaluation of the suitability of empirically based models for the prediction of energy performance of liquid chillers.
  • Identifiant de la fiche : 2010-0874
  • Langues : Anglais
  • Source : ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
  • Date d'édition : 20/05/2009

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