Analysis of independent energy saving possibilities in flats of apartment buildings
2021
Adomavicius, V., Kaunas Univ. of Technology (Lithuania)
The article provides results of measurements performed in the experimental apartment building in order to explore opportunities to improve the efficiency of energy usage in this and in other similar buildings. The experiments were performed in the apartment building located on the KTU campus and renovated a few years ago. After analysing the results of the performed measurements, it was found that even after the renovation there are many opportunities to significantly improve the energy efficiency in this apartment building and most probably in other similar buildings as well. Proposals to use various measures to increase the energy efficiency of a building have been combined with the need to create a microclimate with optimal parameters recommended by global construction, government, and health organizations for living and working spaces so that residents can live, work and relax comfortably. Parameters of thermal energy circulating in the building, amounts of the heat energy used for the production of one cubic meter of domestic hot water, variations of indoor and outdoor temperatures, as well as variations of indoor and outdoor humidity over a long time, photographic and thermographic images of heat wasting parts (windows and doors) were obtained experimentally. The obtained parameters are analysed, the problems causing unnecessary heat loss are found out and suggestions for reducing these losses are presented. Implementation of untapped potential energy-saving measures in apartment buildings could result in significant energy savings.
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