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Hygrothermal performance of a whole building

 
: Holm, A.; Sedlbauer, K.

Alsayed, M.K.:
Intelligent Building Middle East 2005. CD-ROM : International Exhibition and Conference for Building Concepts, Materials and Technologies
Manama (Bahrain): Bahrain Society of Engineers, 2005
9 pp.
Intelligent Building Middle East -IBME-, International Exhibition and Conference for Building Concepts, Materials and Technologies <1, 2005, Manama (Bahrain)>
English
Conference Paper
Fraunhofer IBP ()
hygrothermal simulation; indoor humidity; moisture buffering; intermittent air-conditioning; humidity control

Abstract
The hygrothermal behaviour of the building envelope affects the overall performance of a building. There are numerous tools for the simulation of the heat and moisture transfer in the building envelope and also whole building simulation tools for energy calculations. However, working combinations of both models for practical application are just about to be developed. In this paper such a combined model, that takes into account moisture sources and sinks inside a room, input from the envelope due to capillary action, diffusion and vapour ab- and desorption as a response to the exterior and interior climate conditions as well as the well-known thermal parameters will be explained. By way of well documented field experiments the new model is validated and the moisture buffering capacity of the building envelope is determined. In the conclusions the possible range of future applications of hygrothermal building performance models is addressed and demands for further research are indicated.

: http://publica.fraunhofer.de/documents/N-36534.html