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Échelle de mesure de la masse différentielle pour mesurer la charge en frigorigène et la rétention d’huile des échangeurs de chaleur à tubes ronds à plaques et à ailettes (ASHRAE RP-1785).

Differential mass measurement scale for measuring refrigerant charge and oil retention of round tube plate fin heat exchangers (ASHRAE RP-1785).

Numéro : 2124

Auteurs : LEE A. J., BACH C. K., BRADSHAW C. R.

Résumé

During the product development process of split-system air-conditioning units, simulation models are widely used by manufacturers to predict equipment performance. Model-based development allows manufacturers to reduce the number of experiments prior to product launch, reducing product development cycle time and cost. However, the current models struggle to predict performance for reversible heat pump systems because of inaccurate predictions of refrigerant charge and oil retention. This is due to a lack of validation data for R410A charge models. This study provides high-quality reference data for refrigerant and oil charge measurements in residential fin-tube heat exchangers operating with R410A. This high-quality reference data will allow tuning of simulation models to improve charge prediction accuracy. As a result, the data will enable enhanced simulation model development with better charge and performance prediction capabilities, reducing product development cost for our industry. A key component, the Differential Mass Measurement Scale (DMMS) with 0.006% of relative accuracy of 49.9 kg tare weight of a heat exchanger test module, to implement this method is presented.

Documents disponibles

Format PDF

Pages : 8

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 : Differential mass measurement scale for measuring refrigerant charge and oil retention of round tube plate fin heat exchangers (ASHRAE RP-1785).
  • Identifiant de la fiche : 30028417
  • Langues : Anglais
  • Source : 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 05/2021
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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