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Talks and Poster Presentations (with Proceedings-Entry):

M. Dörn, N. Morishita-Steffen, A. Korjenic, T. Bednar:
"The combined impact of thermal renovations and user behaviour on predicting residential heating energy use";
Talk: 5th International Building Physics Conference (IBPC), Kyoto, Japan (invited); 2012-05-28 - 2012-05-31; in: "The Role of Building Physics in Resolving Carbon Reduction Challenge and Promoting Human Health in Buildings", (2012), Paper ID P 913-920, 8 pages.



English abstract:
This paper compares the calculated heating energy demand to the actual energy use in three existing single family homes. Three
case study houses built in 1957, 1965, and 1987, underwent phased thermal renovations and were studied using detailed data
collected over several years. The two-storey detached homes with basements are situated in the Austrian Vorarlberger
Highlands close to the western Austrian border.
The findings from a recent master´s thesis completed at the Research Center of Building Physics and Sound Protection, Vienna
University of Technology, compared the estimated to actual residential heating energy use in three existing single family homes.
The results discussed below showed that the calculated values exceeded actual energy consumption by up to 35%. The main
reasons for the discrepancies between the estimated values in the Austrian energy certificate calculations and the actual
consumption showed that detailed input data including information about user behaviour, building services, climate data, and
building construction are needed for accurate estimations (Dörn, 2011). The connection between phased thermal renovations
and inhabitants´ behaviour on energy consumption in relation to the energy estimates in the energy certificate calculations for
individual single family homes are shown.

Keywords:
user profile, energy-related occupant behaviour, energy certificate calculations, residential heating energy, single family homes

Created from the Publication Database of the Vienna University of Technology.