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Rpm to Cfm Calculator

How to Estimate CFM

To calculate the CFM for a fan, you need to know the fan's diameter, pitch, and RPM. The formula is:

CFM = (Fan Area in Square Feet) × (Air Velocity in Feet per Minute)

Use the form above to input the fan dimensions and RPM, and the calculator will provide the required CFM.

Fan RPM Meaning

RPM (Revolutions Per Minute) is a measure of the speed of a rotating object, such as a fan blade, in terms of the number of complete revolutions it makes in one minute.

For fans, RPM is an important specification as it directly affects the airflow generated by the fan. A higher RPM generally means that the fan will move more air, but it also typically means that the fan will be louder and consume more power.

When selecting a fan for a specific application, it is important to consider the balance between RPM, airflow, noise, and power consumption. The ideal RPM for a fan can vary depending on the specific needs of the application, such as the size of the space being cooled, the desired level of airflow, and the acceptable level of noise.

In some cases, fans may be equipped with variable speed controllers that allow the user to adjust the RPM of the fan to match the changing needs of the application. This can help to optimize the performance of the fan and reduce energy consumption.

Reference

https://www.hunker.com/13407187/how-to-calculate-cfm-from-rpms/

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