1990 Volume 7 Issue 3 Pages 235-242
An experimental study was performed to investigate the freezing characteristics of porous media wetted by water. For the experimental sample a sand was used, whose mean grain size was 208μm and specific weight 2.57. The experiments were carried out at the volumetric water content 0.10 and 0.25. The porosity was varied from 0.46 to 0.55and the cooling rates were -2 °C/h and -13°C/h. Freezing temperature of suppercooled water and thermal energy released from the wetted and unsaturated porous media were measured in the experiment. The effects of the porosity, the water content and the cooling rate for the degree of the supercooling and the released heat flux were clarified in the present study.
