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Évaluation des performances de trois méthodes de mesurage virtuelles pour estimer les besoins énergétiques d’un chauffage périmétrique par zone.

Performance evaluation of three virtual metering methods to estimate zone-level perimeter heater energy requirement.

Numéro : 310044

Auteurs : DARWAZEH D., DUQUETTE J., GUNAY B.

Résumé

Virtual metering provides a cost-effective alternative to physical meters to monitor building energy performance and capture unmetered energy flows at the zone-level. Virtual metering accuracy depends on the modelling method and its ability to represent the heating and cooling processes at a building thermal zone. This paper employs three virtual metering methods to estimate the heating energy of zone-level perimeter heaters: a steady-state modelling method, a transient modelling method, and a load disaggregation modelling method. Inverse models representing these three virtual metering methods are trained using data obtained from seven perimeter offices in an academic building in Ottawa, Canada. Model parameters are identified using the genetic algorithm and used for creating virtual meters that estimate the energy requirement of zone-level perimeter heaters. The virtual meters' accuracy is assessed by comparing the results to measured heating energy obtained from physical meters installed in the seven offices. The three virtual metering methods' performance is evaluated through illustrative examples in terms of modelling assumptions, data requirements, and virtual metering accuracy. The results indicate that the three virtual metering methods can estimate the daily heating energy supplied by perimeter heaters at a normalized root-mean-square error between 13% and 23%.

Documents disponibles

Format PDF

Pages : 10

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 : Performance evaluation of three virtual metering methods to estimate zone-level perimeter heater energy requirement.
  • Identifiant de la fiche : 30028677
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 2021 Purdue Conferences. 6th International High Performance Buildings Conference at Purdue.
  • Date d'édition : 24/05/2021
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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