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Document IIF

Grille globale d'évaluation de la performance utilisée afin de caractériser l'impact économique des pannes survenant dans lessystèmes de refroidissement à détente directe.

An overall performance index for characterizing the economic impact of faults in direct expansion cooling equipment.

Auteurs : LI H., BRAUN J. E.

Type d'article : Article, Article de la RIF

Résumé

Air conditioning is a non-critical application for fault detection and diagnosis (FDD) where decisions about servicing faults should involve the use of economics. Existing methods for evaluating impacts of faults on equipment performance only consider some individual factors such as the equipment COP or cooling capacity. This paper develops an overall economic performance degradation index (EPDI) for air conditioning equipment that includes the combined effects of degradations in COP, cooling capacity, and sensible heat ratio. EPDI quantifies the performance degradation caused by faults based on economics so it can be used as part of the decision making process in an overall FDD system. Furthermore, EPDI can be used along with estimates of typical field performance degradations to assess the economic benefits associated with the application of automated FDD. A case study is presented where EPDI was applied to measurements for an existing unit where faults were artificially introduced.

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Format PDF

Pages : 299-310

Disponible

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    20 €

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    Gratuit

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Détails

  • Titre original : An overall performance index for characterizing the economic impact of faults in direct expansion cooling equipment.
  • Identifiant de la fiche : 2007-0305
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 2
  • Date d'édition : 03/2007

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