1994 年 60 巻 580 号 p. 4236-4243
Flow and solidification characteristics of tetradecane droplets [melting point of 5.8°C, latent heat of 229.1 kJ/kg, density of 770 kg/m3 (at 6°C) ] ascending in ethlene glycol water solution of 30 weight percent at low temperature were investigated experimentally in order to examine the possibility of a liquid-liquid or liquid-solid direct-contact-type latent cold heat storage system. A new type of solidification rate meter is proposed in the present study. As a result, some interesting freezing behaviors of droplets were observed by the visualization technique. From the measurements of solidification rate of tetradecane droplets, the relationships between the solidification rate and some experimental parameters were clarified.