Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Airtightness of a building envelope
The main investigation object of this paper if the airtightness of a building envelope and its influence of energy efficiency, indoor air quality and thermal conditions inside the building. First of all, the legislation regulations for the airtightness of buildings and the measuring methods were discovered. Secondly, the airtightness measurement took place at the end of the construction process in the daycare center in a city in Finland. When the building was commissioned, the indoor climate parameters were monitored to discover the influence of the airtightness of the building envelope and air leakages on indoor air quality and thermal comfort of occupants. Finally, the results were analyzed. It was found out that the building envelope has high airtightness. It was discovered that there is no significant influence on thermal conditions inside the building. The temperature and relative humidity did not fluctuate much. However, it was discovered that the low air leakage rate leads to a reduction of fresh air income inside the building, which leads to the increase of indoor air pollutants and the decrease in indoor air quality. That means that the ventilation system should be adjusted if the predicted number of occupants increases. The study showed that the improvement of airtightness leads to a reduction of the energy demand of the building. However, the reduction of fresh air income should be taken into account when the ventilation system is designed.
Airtightness of a building envelope
The main investigation object of this paper if the airtightness of a building envelope and its influence of energy efficiency, indoor air quality and thermal conditions inside the building. First of all, the legislation regulations for the airtightness of buildings and the measuring methods were discovered. Secondly, the airtightness measurement took place at the end of the construction process in the daycare center in a city in Finland. When the building was commissioned, the indoor climate parameters were monitored to discover the influence of the airtightness of the building envelope and air leakages on indoor air quality and thermal comfort of occupants. Finally, the results were analyzed. It was found out that the building envelope has high airtightness. It was discovered that there is no significant influence on thermal conditions inside the building. The temperature and relative humidity did not fluctuate much. However, it was discovered that the low air leakage rate leads to a reduction of fresh air income inside the building, which leads to the increase of indoor air pollutants and the decrease in indoor air quality. That means that the ventilation system should be adjusted if the predicted number of occupants increases. The study showed that the improvement of airtightness leads to a reduction of the energy demand of the building. However, the reduction of fresh air income should be taken into account when the ventilation system is designed.
Airtightness of a building envelope
Paramonova, Marina (Autor:in)
01.01.2019
Sonstige
Elektronische Ressource
Englisch
DDC:
690
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