How is the air volume of the fan calculated?

Release time：

2022-08-25

The definition of fan air volume is: The product of wind speed V and sectional area F of air duct. Because the wind speed of large fan can be accurately measured by anemometer, the air volume calculation is also very simple. The air volume can be calculated directly by using the formula Q=VF. To determine the number of fans, it is necessary to calculate the total air volume required by the plant according to the air exchange rate of the selected room, and then calculate the number of fans. Calculation formula: N=V × N/Q, in which: N -- number of fans (set); V - site volume (m3); N -- Ventilation rate (times/hour); Q -- single air volume of the selected fan model (m3/h).

The definition of fan air volume is:

The product of wind speed V and sectional area F of air duct.

Because the wind speed of large fan can be accurately measured by anemometer, the air volume calculation is also very simple. The air volume can be calculated directly by using the formula Q=VF.

To determine the number of fans, it is necessary to calculate the total air volume required by the plant according to the air exchange rate of the selected room, and then calculate the number of fans.

Calculation formula:

N=V × N/Q, in which: N -- number of fans (set); V - site volume (m3);

N -- Ventilation rate (times/hour);

Q -- single air volume of the selected fan model (m3/h).

Related news