POROUS MATERIAL FOR LATENT HEAT AND ACCUMULATED HEAT AND METHOD FOR PRODUCING THE SAME

摘要

Provided are a porous material for latent heat and accumulated heat, which is useful as a heat storage/supply medium with higher efficiency and prevents leakage of a phase change material by impregnating a fluid phase change material into porous clay or pearlite, and a method for producing the same. The porous material for latent heat and accumulated heat is produced by the method comprising impregnating a phase change material(PCM) into a porous material by a pressure impregnation technology. Preferably, the phase change material(PCM) is a paraffinic material and the porous material is selected from porous clay or porous pearlite. The pressure impregnation is preferably performed under a condition of heat having a temperature above a melting point of PCM and a pressure of 40-100 kPa.