Air Velocity Calculator:
Enter the values of Air Flow Rate AFR(ft3/s) & Air Duct Area DA(ft2) to determine the value of Air Velocity Vair(ft/s) .
Air Velocity Formula:
The Air Velocity Vair(ft/s) in feet per second is equal to the Air Flow Rate AFR(ft3/s) in feet cube per second is divided by the Air Duct Area DA(ft2) in feet square.
The Equation of Air Velocity can be writtern as,
Vair(ft/s) = AFR(ft3/s) / DA(ft2)
Here,
Vair(ft/s) = Air Velocity in feet per second
AFR(ft3/s) = Air Flow Rate in feet cube per second
DA(ft2) = Air Duct Area in feet square
Calculation for Air Velocity:
1)Determine the Air Velocity and given for Air Flow Rate = 100 ft3/2 , Air Duct Area = 10 ft2.
Answer
Vair = AFR / DA
Vair = 100 / 10
Vair = 10ft/s.
2)Determine the Air Duct Area and given for Air Flow Rate = 100 ft3/2 , Air Velocity = 10ft/s.
Answer
Vair = AFR / DA
10 = 100 / DA
DA = 10ft2.