Ventilation Systems: Operation and Testing - GHDonline
Ventilation Systems: Operation and Testing - GHDonline
Ventilation Systems: Operation and Testing - GHDonline
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Factors in the Perception of Air Quality<br />
Conservation of Mass<br />
1 velocity = 50 FPM<br />
Hood<br />
2 velocity = 3000 fpm<br />
Air Flow<br />
Duct<br />
Q = V . A<br />
Where<br />
Flow rate at point 1 is called Q 1<br />
<strong>and</strong> is equal to<br />
flow rate at point 2 which is called Q 2<br />
Q = Volumetric Flow Rate, ft 3 /min<br />
V = Air Velocity, ft/min or fpm<br />
A = Cross Sectional Area, ft 2 or SF<br />
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