Abstract

Natural ventilation of double-skin facades (Nicola Mingotti) We discuss the buoyancy-driven natural ventilation of double-skin facades. We investigate how the double-skin facade and the adjoining rooms should be ventilated in different seasons or climatic contexts. Summertime facade overheating is a frequent problem. We study how to reduce the temperature build-up in the facade during the warmer season. In doing so, two ventilation regimes can develop in the facade: we determine which regime is more desirable, and how we can obtain it.

Energy Implications of Stratification (Andrea Kuesters) About 40% of energy consumed in buildings is used for heating. In this talk we explore the effect which temperature stratification due to heating and ventilation has on the energy consumption in spaces. In the first part we explore a single space with various ventilation methods and heat sources. In the second part we investigate multiply connected spaces, as can be found for example in a shopping mall.