Comparison of Thermal Energy Saving Potential and Overheating Risk of Four Adaptive Façade Technologies in Office Buildings

Adaptive façades are gaining greater importance in highly efficient buildings under a warming climate. There is an increasing demand for adaptive designed to regulate solar and thermal gains/losses, as well avoid discomfort glare issues. Occupants developers of office ask healthy energy-neutral working environment. appropriate dynamic solutions controlled automatically or through occupant interaction. However, relatively few studies compared their energy overheating risk performance, there still vast knowledge gap on behavior operation. Therefore, we chose study four envelopes representing different façade families: shading, electrochromic glazing, double-skin, active ventilative façades. Three control strategies were chosen the aspect control, operative temperature, control. Simulations realized with EnergyPlus BESTEST case 600 from ASHRAE standard 140/2020 temperate climate Brussels. A sensitivity analysis was conducted most influential parameters. The findings indicate that shading devices glazing have remarkable influence annual demand, decreasing total loads can reach 30%. On other hand, BIPV double-skin (cavity façades) could be more cold climates. ranks technologies provides novel insights designers building owners regarding performance risk.