Abstract
Uncontrolled air leakages through the building shell
increases energy consumption and deteriorates the indoor
air quality by allowing the outdoor airborne contaminants
to enter indoors. The accurate determination of air
leakages is difficult, especially in large buildings. To
quantify the air leakages within mechanically ventilated
buildings a new method has been developed. It consists of
a computational model and measured outdoor air, filtered
supply air and exhaust air particle concentrations. Based
on the measured concentrations, the leakage air flow can
be achieved by fitting the experimentally obtained air
concentrations with theoretically calculated values. The
method was tested at a field measurement site during a
four month measurement period. The results show that
leakage flows could be reliably determined by the method
described and that leakage flows are clearly dependent on
weather conditions.
Original language | Finnish |
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Title of host publication | Rakennusfysiikka 2017 |
Subtitle of host publication | uusimmat tutkimustulokset ja hyvät käytännön ratkaisut |
Editors | Juha Vinha, Henna Kivioja |
Publisher | Tampere University of Technology |
Pages | 437-440 |
Volume | 2 |
ISBN (Print) | 978-952-15-4023-3 |
Publication status | Published - 2017 |
MoE publication type | A4 Article in a conference publication |
Event | Rakennusfysiikka 2017: Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut - Tampere, Finland Duration: 24 Oct 2017 → 26 Oct 2017 |
Seminar
Seminar | Rakennusfysiikka 2017 |
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Country/Territory | Finland |
City | Tampere |
Period | 24/10/17 → 26/10/17 |
Keywords
- infiltration
- modelling
- fine particles