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1 Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

1 2009

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Natural pressure influence on air flow through holes and non solidity of room enclosure

Zhukovsky S., Voznyak O.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

2009

z. 54 [266]

143-149

It is considered that thermal pressure influences are caused by densities of external Pe and internal Pi air. They directly proportionally depend on height of ventilation pipe. Analysis shows, that there are not taken into account at least such values: pressure influences of convective flows, which are resulted from heat sources; temperature division of internal air; variability of boundary layer external air density against running height of building. It must be noted, that only gravital pressure influences are taken into account, but wind pressure influences are ignored. However, wind pressure influences are based at natural ventilation of rooms in different seasons.