Abstract
In the modern society, most of architectures have depended a great deal on consumable energy supplied from the outside in order to maintain comfortable indoor environment. In the double skin proposed in this paper, a method was adopted in which a buffer layer for heat exchange is formed by providing a hollow space between them and the stress of the buffer layer is reduced by using natural convection through the natural vents at the upper and lower parts. PCM (Phase Change Materials), which can receive a passive effect to resolve such current problems as the direct inflow and indoor inflow of solar energy, created by direct sun rays, through the existing secondary internal outer-layers, was also used as a secondary internal outer-layer. Therefore, the passive double skin system could resolve such basic problems through efficient and continuous use of natural energy by controlling the heat storage and energy release by sun light. In order to evaluate the energy performance, a specimen was developed and fabricated in the system of window-type double outer-layers applicable to general apartments, and the general window system and the general double outer-layer system were also fabricated as the control groups.