Heterogeneity of pressures

Numerical and experimental identification of factors influencing the pressure homogeneity during an airtightness test in a large building

Submitted by on Mon, 04/15/2019 - 16:17

Airtightness is the most important property of building envelopes to understand the ventilation. Airtightness refers to the flow measurement through the building envelope as a function of pressure across the building envelope. This relationship often fits to a power law, which is the most common way of expressing data. However, pressure homogeneity during airtightness tests can crop up, especially in large buildings.