Basic research on ice-storage process of alcoholic solution ice-slurry for high performance cold energy storage

通过实验研究酒精冰浆贮存一晚后的熔化特性。第一年，酒精冰浆在两种条件下储存；(1)恒温略高于初熔点温度，。(2)固体和液体区域之间的周期性温度变化。精确地观察了冰的晶体形状和大小的变化，并沿着冰的高度测量了空气、水和冰的体积比。层。经证实，冰层顶部的冰晶经过一晚的储存，会变成更大的冰块。并阐明了这一变化的机理。第二年，在第一年成果的基础上，实验研究了通过顶部热水淋浴的融化过程在冰层中形成的“水路径”。阐明了由均匀和非均匀冰晶（上部较大）组成的冰晶层的“水路”形成过程。

Experiments were performed to clarify the melting characteristics of alcoholic ice-slurry stored for one night. In the first year, alcoholic ice-slurry was stored under two conditions ; (1) constant temperature slightly higher than the initial melting point temperature,. (2) periodic temperature varying between solid and liquid regions. The variations in crystal shape and size of ice were observed precisely, and the volumetric ratio of air, water and ice was measured along the height of the ice. layer. It was confirmed that the ice crystal at the top of the ice layer changes to a larger lump of ice through a storage of one night. The mechanism of the change was also clarified. In the second year, formation of "water path" in an ice layer through the melting process by a hot water shower from the top was investigated experimentally, based on the result of the first year. Processes of "water path" formation were clarified for the layer composed of uniform and non-uniform (larger one at the top) size of ice crystal.