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Document IIF

Etude sur la vitesse de refroidissement de l'eau sur-refroidie à l'intérieur de capsules cylindriques.

A study of cooling rate of the supercooled water inside of cylindrical capsules.

Auteurs : BRAGA S. L., MILÓN GUZMÁN J. J., JIMÉNEZ-PACHECO H. G.

Type d'article : Article, Article de la RIF

Résumé

An experimental apparatus was developed to investigate the supercooling phenomenon of pure water inside cylindrical capsules used for cold storage process. The phase change material used was distilled water. The external coolant material was a water-alcohol mixture (50% vol.), controlled by a constant temperature bath in four fixed values (-4, -6, -8, and -10°C). Temperatures varying with time were measured inside and outside the capsule. Cylindrical capsules with internal diameter of 30, 45, and 80 mm, with 1.5 mm wall thickness were made in aluminium, bronze or acrylic materials. The cooling rate was investigated for different positions on the internal wall of the capsule, for different external coolant temperatures, different capsules diameters and different materials. The results showed that the cooling rate is a strong function of the angular position on the internal wall, the coolant temperature, the capsule material, and the capsule's diameter.

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Format PDF

Pages : 953-959

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 : A study of cooling rate of the supercooled water inside of cylindrical capsules.
  • Identifiant de la fiche : 2009-1692
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 5
  • Date d'édition : 08/2009

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