過冷却中を成長する氷結晶の体積変化
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概要
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Recently, dynamic type of ice storage system has been high lightened, since it gives a solution to the problem of peak electrical load. The deferent types of the method of ice making produce the different types of ice, and the selection of the type of ice influence the coefficient of performance of ice storage system. Hence studying the shape of ice and its behavior such as stickiness are important. The shape of ice crystal depends on various factors such as concentration of solution, temperature, convection, time and so on. There are various types of ice exists, such as frazil ice, dendrite, needle ice, solid ice, slurry ice. However, there is no report measuring the volume of the crystal, yet, because the shape of the crystal is too complicated to measure. In this report, pure water was used and single crystal ice was formed in supercooled water. The shape of the crystal was measured in three-dimensions using Mach-Zehnder spectro-interferometer. Volume of the crystal was measured. It was found that the volume depends upon time and the degree of supercooling, and experimental equation was derived. Furthermore, projected area normal to c-axis was measured. It was found that the area depends not only on time but also the degree of supercooling.
- 公益社団法人 日本冷凍空調学会の論文
公益社団法人 日本冷凍空調学会 | 論文
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