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A. Korjenic, T. Bednar:
"A simplified method for determining the humidification and dehumidification demands";
Vortrag: 5th International Building Physics Conference (IBPC), Kyoto, Japan (eingeladen); 28.05.2012 - 31.05.2012; in: "The Role of Building Physics in Resolving Carbon Reduction Challenge and Promoting Human Health in Buildings", (2012), Paper-Nr. P 597-604, 8 S.

Ventilation systems are now frequently installed in buildings. In museums and exhibition rooms, they are used to guarantee the
optimal temperature and humidity conditions for valuable and irreplaceable objects. Ventilation systems are increasingly used
even in residential and office buildings. In Austria and other similar climates, winter outdoor air is very dry. Because of the
constant air exchange using a ventilation system, the relative humidity of indoor air is often lower than the comfort limit, so that
air humidification is necessary. In the same rooms, air must be dehumidified during the summer months. Humidification and
dehumidification should be minimized as the processes consume a large amount of energy. Until now, it has been unclear how
much humidification or dehumidification is necessary for room conditioning and thus, could not be calculated easily. In this
investigation, a simplified method for determining the humidification and dehumidification demands considering effective
room moisture capacity was developed. The model is used for energy balance calculations and will be integrated into the
program for energy certification in Austria.

humidification, dehumidification, simplified balance method, heat and moisture recovery, HVAC