Fluid Glass Façade Elements: Energy Balance of an Office Space with a Fluid Glass Façade

High-rise buildings with a large proportion of transparent areas, where conventional external overheating protection cannot be used due to the wind loads, are often problematic from an energetic and comfort point of view. In this paper a glass façade system is examined, which controls the energy flows within the transparent building envelope. Two fluid-filled layers are implemented in a glass façade. The inner fluid layer controls the inside surface temperature and thus the room temperature, while the outer, dyeable liquid layer controls the energy transmission by absorption of the solar radiation. The inside and outside fluid layers are thermally separated.