Application Study of Nanoparticle-enhanced Phase Change Material in Ceiling Board

The application of phase change materials (PCMs) is very promising in buildings because it allows the storage and discharge of considerable quantities of cooling and heating energy, dumping the air temperature swings within the building so that the indoor air temperature is closer to the desired temperature for a longer period of time. In order to account for the good characteristics of Alumina nanoparticle-in-paraffin as phase change material, based on enthalpy-porosity model and numerical analysis, detailed phase fields and heat flux are obtained, compared with that of pure paraffin. And study demonstrates that room with ENPCM ceiling is a good way of saving cool energy in summer.