| 요약2 |
Recently, the use of thermal energy storage with phase change material (PCM) is considered to be one of the most important advanced technologies, and a lot of attention has been paid to utilization of the essential techniques for thermal applications, ranging from heating to cooling in buildings. And PCMs need shape stabilization and improving thermal conductivity. Vacuum impregnation method is considered to be a more effective method of incorporation. Therefore, this study selected the vacuum impregnation methods as phase stabilization method for application to building materials. In this experiment, we used PCMs to incorporate the porous building materials. From the representative result, the latent heat storage of n-octadecane/diatomite composite was 116.8 J/g and 112.9 J/g during heating and freezing, respectively. However, low conductivity property of PCMs has still remained after shape-stabilization process. So in the next study, carbon nanoparticles were applied to manufacture the thermal conductivity improved SSPCMs as a PCM container. In the representative analysis, the thermal conductivity of Bio-based PCM and thermal enhanced Bio-based PCM show 0.154 and 0.557W/m·K, respectively. As a result, thermal enhanced Bio-based PCM has a 375% increase of thermal conductivity, compared to the Bio-based PCM. |