Authors built an ice making system using water-oil emulsion, which is applicable to dynamic type ice storage system. In order to operate this system, it is important to prevent ice from adhering to cooling wall. In this study, the effects of initial oil content of emulsion and ice making rate were investigated. As the result, it was found that the adhesion of ice is caused by decrease of oil content of the emulsion. The oil content decreases in ice making process, because oil in the emulsion adheres to the ice particles generated in it. It was also found that the decreasing rate of oil content becomes higher as the ice making speed increases. Therefore it was concluded that the initial oil content should be high and ice making rate should be low, in order to produce more amount of ice in this system.
