THERMAL PERFORMANCE OF THE SHAPE-STABILIZED PHASE CHANGE MATERIAL WALL PREPARED BY DIFFERENT METHODS

This paper investigated the thermal performance of the concrete walls which add shape-stabilized phase change material (PCM). The material is composed of paraffin mixtures and high-density polyethylene, and the walls were prepared respectively by different methods, such as direct mixing method and lamination interpolation method. Energy-saving effects of shape-stabilized PCM walls were studied by comparing with traditional walls. The results showed that the surface temperature and the thermal flow through the phase change material walls prepared by different methods are lower than that of traditional wall and the change of them are small, moreover, there was the weaken and detention on PCM wall; Energy-saving effects of PCM walls prepared by lamination interpolation method are better than that of walls by direct mixing, and the effects are increasing with the increase of the lamination. Results can provide the basis for the application of phase change material walls in real buildings.