스마트 이중외피 시스템의 기후대별 냉·난방 부하 저감 효과에 관한 시뮬레이션 연구

Abstract

Buildings account for approximately 37% of global energy consumption, with HVAC systems representing 33–50% of this use. Glass curtain wall buildings, commonly found in high-rise urban environments, often experience excessive solar heat gain and heat loss due to high window-to-wall ratios and low insulation. To address these issues, this study proposes a Smart Double-Skin Façade (SDSF) system incorporating IoT-based controls for dynamic operation of blinds and exhaust fans in response to cavity air temperature. An EnergyPlus simulation model was developed based on a validated testbed located in Jincheon, South Korea, and used to evaluate SDSF performance across 16 ASHRAE climate zones. The results demonstrated that SDSF reduced annual heating and cooling loads in all climate zones compared to a single-skin façade, with the greatest total load reductions observed in zones 3B-Coast and 3C, reaching 28.4% and 26.4%, respectively. Cooling load reductions were particularly significant, while heating reductions were limited in colder climates. The findings highlight the climate-responsiveness and energy-saving potential of the proposed SDSF system in various environmental conditions.