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Relation entre la vitesse de rotation d'une roue déshydratante et l'efficacité et sa réponse transitoire. II. Comparaison entre les modèles mathématiques prévisionnels, les mesures expérimentales et l'analyse d'incertitude.

Relationship between energy wheel speed and effectiveness and its transient response. II. Comparison between mathematical model predictions and experimental measurements and uncertainty analysis.

Auteurs : ABE O. O., BESANT R. W., SIMONSON C. J., et al.

Résumé

This paper briefly describes the physical transient test facility, instrumentation, and tests performed on a stationary energy wheel to obtain the heat transfer and adiabatic moisture transfer time constants and weighting factors. Using the theoretical model in Part I (see this Bulletin, reference 2007-1232), these experimentally determined characteristic factors are then used to predict the sensible and latent effectiveness of an energy wheel rotating at a selected speed. These predicted effectiveness results are shown to agree with the corresponding measured data for effectiveness within the uncertainty bounds. Comparisons of predicted effectiveness and computer simulations also show good agreement except for very low air face velocities. It is concluded that transient test methods could be used to supplement or replace steady-state effectiveness tests. [Reprinted with permission from ASHRAE. Copyright, 2006].

Détails

  • Titre original : Relationship between energy wheel speed and effectiveness and its transient response. II. Comparison between mathematical model predictions and experimental measurements and uncertainty analysis.
  • Identifiant de la fiche : 2007-1233
  • Langues : Anglais
  • Source : ASHRAE Transactions. 2006 Annual Meeting, Quebec City, Canada. Volume 112, part 2 + CD-ROM.
  • Date d'édition : 25/06/2006

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