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Document IIF

Méthode de suivi des performances non intrusive pour les conditionneurs d’air.

Non-intrusive performance monitoring method for air conditioners.

Auteurs : GIANNETTI N., YIN J., MIYAOKA Y., TALLURI L., MILAZZO A., TANAKA K., KOWA W.

Type d'article : Article de la RIF

Résumé

A novel technique that relies solely on cost-effective and non-intrusive instrumentation for monitoring the performance of air conditioning installations in buildings was developed and experimentally tested. The pro posed method addresses the challenges of field measurements in air-to-air units by using thermocouples and strain gauges placed strategically on the refrigerant pipeline of the outdoor unit to estimate the cycle COP. The tests demonstrated the feasibility of estimating refrigerant temperature and pressure without cutting the refrigerant pipeline. Real-time cycle COP deviations could be limited to 3 % with proper calibration of the strain signal and the use of refrigerant properties. Additionally, compressor speed is identified through the frequency spectrum of the strain signal. Therefore, the refrigerant flow rate can be estimated using a compressor curve method that relies exclusively on simple instrumentation. Widespread adoption of this method could help close the knowledge gap between catalogue and field-operating performance of the numerous air conditioning installations.

Documents disponibles

Format PDF

Pages : 10 p.

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 : Non-intrusive performance monitoring method for air conditioners.
  • Identifiant de la fiche : 30034493
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 181
  • Date d'édition : 01/2026
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2025.10.003

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