Abstract
In order to overcome the problem of water supercooling phenomenon for encapsulated ice storage system, ice nucleation effect of some ice nucleating substances is investigated in a bulk supercooled distil1ed water and tap water under various factors. It was understood that a supercooling degree was decreased in an increase in mass ratio of ice nucleating substance in the distil1ed water. The supercooling degree was decreased with increasing vibration frequency for the test sample. Moreover, it was seen that as the repeating number of freezing and thawing increases, supercooling degree for cholesterol as an ice nucleating substance increases, while that for metaldehyde decreases.
