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Nouveau modèle de formation de givre intégrant la propagation de la glace à l’aide de la méthode CFD.

A novel frost growth model incorporated with ice propagation using CFD method.

Numéro : 2432

Auteurs : CHEN J., PARK Y. J., WANG S.

Résumé

In heat pump systems, frost formation is a critical issue during cold winter days, significantly impacting heat pump system COP. Despite considerable efforts to simulate the frost growth process, the initial ice propagation stage has been neglected. This work presents a comprehensive study integrating the ice propagation model with the Euler method’s frost growth model to simulate frost formation on various surfaces considering the ice propagation. Our model significantly enhances understanding of frost layer distribution and its impact on thermal and hydraulic boundary layers at the early stages of frost growth. Notably, it captures how the volume fraction of ice, especially the "bumping" shape at the leading and trailing edges, affects both the hydraulic and thermal boundary layers. The model effectively illustrates the critical edge effect on frost growth, providing new insights into the optimization of surface structure design for anti-frosting. This research advances the fundamental knowledge of frost formation and offers novel insights for anti-frosting optimization of heat pump system design.

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Pages : 10 p.

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Détails

  • Titre original : A novel frost growth model incorporated with ice propagation using CFD method.
  • Identifiant de la fiche : 30033129
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 17/07/2024

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