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Trends in high performance buildings and the role of ventilation

: Hauser, G.

Air Infiltration and Ventilation Centre -AIVC-, Coventry; Energie- und Umweltzentrum am Deister -EUZ-, Springe-Eldagsen; Fraunhofer-Institut für Bauphysik -IBP-, Stuttgart:
4th International Symposium on Building and Ductwork Air Tightness, BUILDAIR & 30th AIVC Conference "Trends in High Performance Buildings and the Role of Ventilation" 2009. Reader : 1. - 2. Oktober 2009 in Berlin, with accompanying trade fair; complete contributions
Springe-Eldagsen, 2009
International Symposium on Building and Ductwork Air Tightness (BUILDAIR) <4, 2009, Berlin>
Conference "Trends in High Performance Buildings and the Role of Ventilation" <30, 2009, Berlin>
Internationales Symposium "Luftdichtheit von Gebäuden und Lüftungssystemen" <4, 2009, Berlin>
Tagung "Entwicklungen bei Hocheffizienten Gebäuden und die Rolle der Lüftung" <30, 2009, Berlin>
Conference Paper
Fraunhofer IBP ()

On the way to the solution of our energy-problems, the conditioning of buildings is the most important sector. We have to create new buildings, that produce more energy than they need in the course of a year, so called plus-energy buildings and we have to perform large-scale retrofitting of existing buildings. Priority must be given to increasing energy-efficiency. Having fulfilled this, the implementation of renewable energy has to be undertaken. To achieve this, new techniques have to be developed, but also the political regulations and the conscience and behaviour of the users have to seriously taken into account. In the past a lot of developments have been undertaken to reduce the transmission losses. In future we have to focus on the ventilation and infiltration losses because of the increase in their relative importance. Even in existing buildings the implementation of central ventilation systems with heat recovery is easily possible by using a new system, presented in this paper.