AN EXPERIMENTAL-STUDY OF DYNAMIC SOLID-LIQUID PHASE-EQUILIBRIUM IN A POROUS-MEDIUM

An experimental study has verified the dynamic equation of state deriv ed from a thermodynamic model representing simultaneous heat and mass transfer from the liquid supply front to the solid-liquid interface in a liquid saturated porous medium. Measurement of pore liquid pressure at the solid-liquid interface fixed on the top surface of an Ohya-tuf f specimen (the porous medium) enabled us to experimentally verify the relationship between temperature, pore liquid pressure and solid pres sure at the interface, and liquid supply pressure. This experimental m ethod was established by re-verifying the so-called Clausius-Clapeyron equation (GCCE), the static equation for a porous medium without liqu id flow. This study also clarified the relationship between the dynami c equation of state and the GCCE on the pore liquid pressure-liquid su pply pressure plane.