Heat and mass transfer through water saturated ceramics with inclusions of ice

• The temperature and water pressure gradients force to move ice in frozen porous medium.
• Mobility of the ice inclusion reduces with decreasing its size.

The experimental setup is made to study the heat and mass transfer properties of frozen ceramics. Measurements were carried out for two ceramic samples, one of which (sample A) contains an ice body about 5 cm3, and ice in the other (sample B) is a set of small grains with sizes of 1–100 μm.The hydroconductivity and thermo-osmosis coefficients of the sample A are several orders higher than the corresponding coefficients of the sample B.Barothermic effect is registered for only one sample namely the ceramics with the ice macro-inclusion.The thermal conductivity coefficient of the sample A is a non-monotonic function of temperature, in contrast to the sample B.Distinctive features of the sample A are associated with the regelation movement of ice in a porous medium under the influence of the temperature and water pressure gradients.