1997 Volume 63 Issue 607 Pages 1021-1028
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 ethylene glycol water solution of 30 mass percent at low temperature were investigated experimentally in order to examine the existence of a liquid-liquid or liquid-solid direct-contact-type latent cold heat storage system. Some interesting freezing behaviors of droplets were observed under the conditions of various water solution flow velocities and oil-injection nozzle diameters by the visualization technique. Eventually, the relation-ships between the solidification rate and some experimental parameters were clarified.