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Étude sur le transfert de masse avec un phénomène de givrage sous convection naturelle.

Study on mass transfer with frosting phenomenon under natural convection.

Numéro : pap. C1-049

Auteurs : INOUE S., OHKUBO H.

Résumé

When the surface temperature of a solid is below the solidification point of water, water vapor in air condenses on the solid surface to from frost. This phenomenon is generally known as frost formation, and is a transient phenomenon in which both heat transfer and mass transfer take place simultaneously. In engineering, the frost formation is a process associated with such consumer products as refrigerators and heat pumps. In the frost formation process, the growth of the frost layer and crystallization of frost depend on several factors such as: the cooling surface temperature where the frost is formed, the temperature and humidity of the main air flow, air velocity, pressure, cooling surface’s shape, dimensions, orientation, roughness and wettablity, and the time elapsed since the start of frost formation. In the present work, the amount of frost deposited ,the frost layer thickness, the apparent density of frost layer, and the view point of the mass transfer with frosting phenomenon.

Documents disponibles

Format PDF

Pages : 5 p.

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 : Study on mass transfer with frosting phenomenon under natural convection.
  • Identifiant de la fiche : 30005143
  • Langues : Anglais
  • Source : ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
  • Date d'édition : 07/06/2010

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