In this paper, a brief review for research and development activities on ice slurries in Japan has been made. The present paper essentially consists of two parts. In the former part of the present paper, the fundamental studies on the basic components, namely,the production,the transportaion, and the melting of ice slurry were presented. Furthermore,the performance of cold thermal storage system was extensively discussed.
The computer simulation on the cold thermal storagre system has been performed to study the effects of such as the operation mode on the system performance. On the other hand,in the latter part, the state of the art of ice slurries, which is applied to development of ice storare systems for air conditioning uses in Japan, has been descrtbed. The types of ice storage system were categorized into five groups by the way of ice manufacturing. Furthermore, the performance of ice storage system was also discussed.