Journal of Korean Institute of Architectural Sustainable Environment and Building SystemsISSN:1976-6483(Print) 2586-0666(Online)한국건축친환경설비학회

A PCM is a substance that stores or releases heat through the physical transition process from solid to liquid state to liquid to solid state. Due to the high heat capacity using latent heat and the Time-Lag phenomenon, heat transfer of the structure is slowed down, and in the process of accumulating and releasing latent heat, the energy saving effect of the building and the effect of reducing the peak load can be expected. In particular, PCM has the advantage that it can be used semi-permanently with passive technology that can prevent sudden changes in room temperature without active elements, and much research is underway to apply it to building materials. Therefore, in this research, we developed a composite panel Prototype in which PCM applied to the wall surface of an existing building with an appropriate phase change temperature applied, and verified the time rack effect depending on the mounting position of the PCM composite panel Prototype through a chamber experiment.