IIR document
Ice formation process by cooling water-oil emulsion with stirring in a vessel.
Author(s) : TSUCHIDA D., KANG C., OKADA M., et al.
Type of article: Article, IJR article
Summary
An emulsion, which was a mixture of silanol-aqueous solution and silicone oil, was investigated as a heat storage material for a dynamic type ice storage system. The emulsion was poured into a vessel, which was immersed into a constant temperature bath at a low temperature, and frozen with stirring. Using stainless steel vessels coated with PFA resin and PTFE vessels with different thickness, the experiments were carried out under various conditions of temperature. Measuring the temperature history in the vessel, overall heat transfer coefficients before the start of freezing and during the ice formation were obtained. The effects of the material of the cooling surface and the thermal resistance of the wall on the ice formation process were clarified. If the heat flux of the wall was less than a critical value, slurry ice was formed without adhesion to the cooling surface. The results obtained under the same condition of the thermal resistance proved that it was effective against ice adhesion to coat PFA resin inside the vessel. It was found by the experiments in which the PTFE vessels were used that the critical value of the heat flux was nearly constant regardless of the thermal resistance.
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Details
- Original title: Ice formation process by cooling water-oil emulsion with stirring in a vessel.
- Record ID : 2002-1701
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 25 - n. 2
- Publication date: 2002/03
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