Researchers in building physics at the University of Weimar are investigating how to improve the energy balance of existing buildings and urban quarters and save CO2 emissions. Based on a digital architectural model, they are also looking at the effects of temperature developments in the interior of a building. For example, they take into account how windows, ovens and human body heat affect temperature development.
In their investigations, the researchers found that the temperatures of an unheated, first-floor example apartment with three exterior walls would drop to a minimum of around 7 to 8 degrees Celsius on average in an average winter in Germany without heating. Their studies are based on the assumption that it is not possible to heat with gas due to the lack of gas supplies.
They based their calculations on an apartment building in Buttelstedt, Thuringia, built in the 1970s, whose windows and exterior walls were renovated in the 1990s. "In Germany, there is a very large proportion of residential buildings that have a similar geometric and energy quality," says Mara Geske, head of the AG Energie at the Chair of Building Physics, explaining the choice. Interested parties can read more about the topic, among other things, in an interview with the AG head on uni-weimar.de.
Source: www.idw-online.de/www.uni-weimar.de
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