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The effect of air bubbles on the diffusion-controlled solidification of water and aqueous solutions of ammonium chloride.

Author(s) : BIANCHI M. V. A., VISKANTA R.

Type of article: Article

Summary

Gas pores appear during solidification when the gas concentration in the liquid is higher than the gas solubility at a certain location. Since the thermal conductivity on the gas can be orders of magnitude lower than that of the solid phases, the effective thermal conductivity of the porous solid may be lower when gas bubbles are present. In the study, experiments have been carried out to determine the effect of air bubbles on the process of solidification and solid formation. Water and ammonium chloride solutions have been solidified under diffusion controlled conditions and the temperature distributions as well as the interface positions have been measured during the experiments.

Details

  • Original title: The effect of air bubbles on the diffusion-controlled solidification of water and aqueous solutions of ammonium chloride.
  • Record ID : 2000-0646
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 42 - n. 6
  • Publication date: 1999/03

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