Partager

Document IIF

Influence du déséquilibre de la courbe de débit et de la masse sur la performance des régénérateurs magnétiques actifs. Partie II : Simulation numérique.

Influence of the flow rate waveform and mass imbalance on the performance of active magnetic regenerators. Part II: Numerical simulation.

Auteurs : NAKASHIMA A. T., DUTRA S. L., TREVIZOLI P. V., et al.

Type d'article : Article, Article de la RIF

Résumé

In this part of the paper, an existing regenerator model was extended to predict the experimental data generated in Part I on the influence of the blow time fraction on the performance of a Gd packed bed AMR. The effect of mass imbalance between the hot and cold blows was evaluated numerically, and a significant improvement of the model predictions was obtained when the numerical and experimental mass imbalance set points were equal. A numerical assessment of the system performance beyond the conditions of Part I indicated optimal utilization factors and blow time fractions for temperature spans of 10 and 20 K, and operating frequencies of 0.25 and 0.5 Hz. For an operating point specified by fixed values of cooling capacity (20 W), temperature span (10 K) and frequency (0.5 Hz), the maximum COP was generated for a blow time fraction of 31% and a utilization factor of approximately 0.6.

Documents disponibles

Format PDF

Pages : 159-168

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 : Influence of the flow rate waveform and mass imbalance on the performance of active magnetic regenerators. Part II: Numerical simulation.
  • Identifiant de la fiche : 30024679
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 93
  • Date d'édition : 09/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.07.005

Liens


Voir d'autres articles du même numéro (25)
Voir la source

Indexation