Ice storage system with water-oil mixture formation of suspension with high IPF

A new method of forming ice, which is one of the dynamic types of ice stora ge system, is studied. In the method a water-oil emulsion is cooled with st irring in a vessel and changed into an ice-oil and water suspension. A mixt ure of 10 vol% silicone-oil and 90 vol% water is emulsified with a small am ount of an additive. Silane-couplers are tested as the additive and effects of the additive on ice formation process are investigated. Cooling rate is changed and vessels made of various materials are tested. It is proved tha t the present method has the following characteristics. Ice-oil and water s uspension (slush ice) which has a good fluidity is able to be formed withou t adhering to the cooling surface. Ice in the suspension is granular and di spersed state and the suspension with more than 70% of ice packing factor ( IPF) is also able to be formed. The suspension with the high IPF can be pre served for a long time in the granular state. (C) 2000 Elsevier Science Ltd and IIR. All rights reserved.