Enter the diameter of the fan and its RPM (revolutions per minute) into the calculator to determine the wind speed generated by the fan. This calculator helps in estimating the speed of air being moved by the fan.
Fan Wind Speed Formula
The following formula is used to calculate the wind speed generated by a fan:
WS = (π * D * RPM * 60) / 5280
Variables:
- WS is the wind speed (miles per hour)
- π (Pi) is a constant approximately equal to 3.14159
- D is the diameter of the fan (feet)
- RPM is the revolutions per minute of the fan
To calculate the wind speed generated by a fan, multiply the circumference of the fan (which is π times the diameter) by the RPM and then by 60 to convert to hours. Finally, divide by 5280 to convert feet per hour to miles per hour.
What is Fan Wind Speed?
Fan wind speed is the velocity at which air is moved by a fan. It is a crucial factor in determining the effectiveness of a fan in ventilating a space or cooling an environment. The speed at which a fan moves air can be influenced by the fan’s size, shape, and RPM.
How to Calculate Fan Wind Speed?
The following steps outline how to calculate the Fan Wind Speed.
- First, measure the diameter of the fan (D) in inches and convert it to feet by dividing by 12.
- Next, determine the RPM (revolutions per minute) of the fan.
- Use the formula WS = (π * D * RPM * 60) / 5280 to calculate the wind speed.
- Finally, calculate the Fan Wind Speed (WS) in miles per hour.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Diameter of the fan (D) = 24 inches
RPM (revolutions per minute) of the fan = 1200 RPM
