%0 Conference Paper %B 6th International Conference on Cold Climate, Heating, Ventilating and Air-Conditioning %D 2009 %T Application of software tools for moisture protection of buildings in different climate zones %A Martin Krus %A Thierry Stephane Nouidui %A Klaus Sedlbauer %X

The application of software tools for moisture protection of buildings in different climatic zones is demonstrated in this paper. The basics of the programs are presented together with a typical application for a problem specific for the chosen climatic zone. A 1-D calculation has been performed for tropical climate zone with the improvement of a flat roof in Bangkok as an example. For half timbered buildings, which are common in the temperate zone with the 2-D model an infill insulation and its benefits are demonstrated. Finally the combined appliance of the whole building model and the mould risk prognosis model is shown in detail as a special case for the cold climate zone: In heated buildings of cold climate zones the internal climate with its low relative humidity in wintertime often causes discomfort and health problems for the occupants. In case of using air humidifier the risk of mould growth increases. Instead of an uncontrolled humidifying of the dry air an innovativecontrol system using a thermal bridge, which switches the humidifier off when condensation occurs is presented. To quantify the improvement in the comfort while preventing the risk of mould growth for a typical building comparative calculations of the resulting inner climates and its consequences on comfort have been performed.

%B 6th International Conference on Cold Climate, Heating, Ventilating and Air-Conditioning %C Sisimiut, Groenland %G eng %0 Journal Article %J Bauphysik %D 2009 %T Neue objektorientierte hygrothermische Modell-Bibliothek zur Ermittlung des hygrothermischen und hygienischen Komforts in Räumen %A Thierry Stephane Nouidui %A Klaus Sedlbauer %A Christoph Nytsch-Geusen %A Kurt Kießl %B Bauphysik %V 31 %P 271-278 %G eng %R 10.1002/bapi.200910036 %0 Conference Proceedings %B 8th Nordic Symposium on Building Physics in the Nordic Countries 2008 %D 2008 %T Object-oriented hygrothermal building physics library as a tool to predict and to ensure a thermal and hygric indoor comfort in building construction by using a Predicted-Mean-Vote (PMV) control ventilation system %A Thierry Stephane Nouidui %A Christoph Nytsch-Geusen %A Andreas Holm %A Klaus Sedlbauer %X

The indoor temperature and humidity conditions of the building envelope are important parameters for the evaluation of the thermal and hygric indoor comfort. In the research project GENSIM a new hygrothermal building library, based on the object- and equation-oriented model description language Modelica® has been developed by the Fraunhofer Institutes IBP and FIRST. This library includes many models as for instance a hygrothermal wall model, an air volume model, a zone model, a window model and an environment model. Due to the object-oriented modelling approach, some models of this library can be configured to a complex hygrothermal room model, which can predict the time dependent indoor temperature and humidity conditions in a building construction. In this paper we will introduce in a first step the object-oriented hygrothermal room model of this library. In a second step, the validation of the room model with some field experiments will be shown. In a third step we willpresent some simulation results, we obtained by coupling the room model with an implemented Predicted-Mean-Vote (PMV) control ventilation system to predict and to ensure a thermal and hygric indoor comfort in one case study. In the conclusion, the possible range of future applications of this new hygrothermal building physics library and demands for further research are indicated.

%B 8th Nordic Symposium on Building Physics in the Nordic Countries 2008 %C Copenhagen, Denmark %V 2 %P pp.825-832 %G eng