What is the CFM calculation for a register with an area of 4.167 square feet and a velocity of 500 FPM?

To determine the CFM (Cubic Feet per Minute) for a register, you'll apply the formula:

CFM = Area (in square feet) × Velocity (in feet per minute)

In this scenario, the area of the register is given as 4.167 square feet, and the velocity is 500 feet per minute (FPM). Plugging these values into the formula:

CFM = 4.167 sq ft × 500 FPM = 2083.5 CFM

This calculation shows that at a velocity of 500 FPM, a register with an area of 4.167 square feet can deliver 2083.5 cubic feet of air per minute. Understanding this calculation is crucial for HVAC professionals, as it helps ensure proper air distribution for both residential and commercial systems. Correctly calculating the CFM is essential for maintaining energy efficiency and comfort levels within a space.