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Influence of storage on permeability of ice-water mixtures.

[In Japanese. / En japonais.]

Author(s) : OKAWA S., SAITO A., MAEDA T., et al.

Type of article: Article

Summary

The purpose of this research was to study the change of morphology of the ice particle and its effect on permeability of ice/water mixtures as porous media. Various sizes of sliced ice were used and specific area before and after the storage was measured. It was found that the morphology of the ice particle changed following storage for 24 hours in a water tank at 0 °C. The shape of the ice particle seemed to change into round and smooth, and the specific area decreased. Kozeny's constant was calculated using the Kozeny Charmann equation. It was found that the constant decreased and reached the value for smooth sphere, independent of the porosity and the size of ice particle. Hence, it was concluded that transformation of sharp edges and rough surfaces on the particles into smoother surfaces cause a decrease in the specific area and Kozeny's constant, and leads to an increase in permeability.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2005-0043
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 21 - n. 1
  • Publication date: 2004

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