كيف يتم حساب كمية ال cfm للمراوح

CFM stands for Cubic Feet per Minute, which is the amount of air that a fan can intake or exhaust in the presence of static pressure, measured in cubic feet per minute. To calculate CFM, consider the following steps: 1) Determine the volume of the space in cubic feet, 2) Choose the appropriate air change rate for the calculated area from Table V1, 3) Calculate the CFM using the equation (Volume of the building in cubic feet / Appropriate air change rate = CFM). This formula helps in determining the fan’s airflow rate in cubic feet per minute.