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Fault detection and diagnosis (FDD): an example of use.

Détection et diagnostic automatique de panne (FDD) : un exemple d’utilisation.

Author(s) : TERRIER M. F., TREMEAC B.

Type of article: Article

Summary

The energy consumption of refrigeration system sis about 36TWh, and it is commonly assumed that 60 to 80% of the systems do not operate under optimal conditions (wrong settings or malfunctions). FDD (detection and diagnosis of failures) methods are automatic supervision process which can detect a deviation from a normal operation, and identify one or more ‘faults’ for which they have been programmed in a prior phase. After a general description of this technique, an example is presented about the detection of a lack of refrigerant, using evaporator outlet superheat and condenser outlet subcooling. Possible developments to diagnose other faults are finally discussed.

Details

  • Original title: Détection et diagnostic automatique de panne (FDD) : un exemple d’utilisation.
  • Record ID : 30008551
  • Languages: French
  • Source: Revue générale du Froid & du Conditionnement d'air - vol. 103 - n. 1134
  • Publication date: 2013/06

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