현장실험을 통한 박스형 이중외피시스템의 환경성능평가

The purpose of this study is to evaluate the environmental performance of the box type double skin facade (DSF) system. The results of this study are as follows; (1) The peak of air temperature within the air cavity appeared 1 hour later after the peak time of outdoor temperature. It appears that the air cavity had a time delay effect. (2) There was about 3℃ temperature difference between the upper zone and the lower zone in case 3. It appears that the sun control window films could reduce the solar radiation. (3) The difference of sound pressure level (SPL) between case A and case D was up to 32.4 dB, at least 17.3㏈ in each frequency band. It appears that sound insulation effect of DSF system would be approximately 39 ㏈ (4) The difference of the illuminance level between separation distance, 1 m, and separation distance 5 m, was up to approximately 1350 lx, at least approximately 250 lx. It appears that would not be necessary to use artificial lighting within 3 m from window side because of the natural lighting being through the window and light shelf.