高 IPF 氷スラリー中の氷粒子の凝集力に関する検討

抄録

Recently, use of ice slurry in the cold storage of foods has increased. To use the ice slurry during the daytime after it was formed using the midnight power, the formed ice slurry must be stored for a long time. However, during the long time storage, ice particles in the ice slurry cohere with each other because of their buoyancy and weight. Occurrence of cohesion of ice particles prevents effective utilization of ice slurry. Thus, to suppress cohesion of ice particles, factors governing cohesion for low IPF slurry (until 30[%]) were clarified. In this paper, ice slurry with higher IPF generated by dissolution of supercooling of pure water at a fixed supercooling degree was stored for a long storage time, after which, the porosity of the ice particles’ lump was measured at each storage time. And, it was clarified that influence of the measured values on the cohesive force of the lump at each storage time, comparing with the ice slurry with low IPF.