| Abstract [eng] |
People spend about 80-90% of their time in buildings. That is why, when designing new and renovating old buildings, more and more attention is paid to ensuring the microclimate and energy efficiency of the premises. In most buildings, attempts are made to regulate the temperature and air quality by opening windows and doors, using individual ventilation, conditioning and heating systems. In most cases, these options are not energy efficient. Proper facade can protect the premises from overheating, increase the energy efficiency of the building. Nowadays, it is very popular to design most of the facade of a building from glass structures. With this in mind, the aim of this master's thesis was to investigate how different facades can change the energy consumption in the “Sky office”, using the IDA ICE dynamic energy consumption modeling program and literature sources. The final master's thesis examines the “Sky office” building currently under construction in Vilnius. During the experiment, the IDA ICE program examined glass facades: single-layer, double unventilated, so-called Closed cavity facades. The double ventilated facade has been studied with the help of literature sources. The obtained modeling results showed that the enclosure of enclosed spaces can be efficient and save 22.5% of energy for the supply of the building compared to the single-layer facade and 4.3% compared to the double ventilated facade. The choice of façade is greatly influenced by the installation price, which ranges between 600-850 Eur / m2 in all cases, and maintenance costs, in this respect the costs of single-layer and closed-cavity façades remain almost unchanged, and double ventilated façade costs can be as high as 7 Eur / m2. After completion of modeling and calculation of savings, installation and maintenance costs, the payback period of the closed cavity façade (compared to the single-layer façade) was calculated to be 38 years. |
