Optimizing the Opening Size of Double-Skin Façades for High-Rise Residential Buildings in the Hot Climate of Abu Dhabi, UAE

This study investigates energy efficiency in high-rise residential buildings in Abu Dhabi, focusing on the impact of glass façades on air-conditioning expenses due to heat accumulation. Employing the double-skin façade (DSF) approach, the study aims to determine optimal DSF design parameters and opening size, emphasizing sustainability and an innovative design approach. Using eQuest software, the research analyses the effectiveness of DSF with the optimal opening size in reducing overall air-conditioning energy consumption. Findings reveal that a DSF with a 35 cm gap and specific layers can significantly enhance energy efficiency. The methodology combines qualitative and quantitative methods, including data from surveys, existing cases, and authoritative sources. The study explores DSF layouts and geometric features, emphasizing the influence of opening dimensions on energy efficiency based on building codes and standards. Inlet width and balcony geometries are given attention, aligning with natural ventilation principles. A comparative analysis of passive design elements shows the importance of DSF in energy reduction. In conclusion, the research advocates different opening sizes, with operable natural ventilation, in well-designed natural ventilated façades. The use of DSF over mechanical systems is recommended for energy reduction. The study contributes field measurements in a hot, arid climate to supplement simulation approaches. Recommendations include diverse climate evaluations, life cycle cost analysis, occupant comfort assessments, integration of intelligent technologies, material sustainability evaluation, and exploration of renewable energy integration.