Exploring the potential of dynamic fagade systems: an exterior shading system versus a switchable window

摘要

Dynamic fagade Systems can play an important role in the overall Performance of the building by adjusting the amount of transmitted solar radiation into the room and responding to environmental conditions. This paper evaluates two types of dynamic facade Systems under various control strategies and shows their influences on energy, Visual comfort, and thermal comfort in an office building.This study looks into the simulated hourly/annual results of venetian blinds versus electrochromic glazing (EC) for an open office room with south-facing window shaded/operated by different control strategies such as manual, radiation-based, illuminance-based, and optimal control scenario, to indicate the overall capabilities and limitations of each shading system. Finally, results show that a well-engineered automatic control strategy can ensure visual and thermal comfort as well as total site energy savings up to 38 % for an EC glazing and up to 49 % for external venetian blinds.