CFM Formula HVAC?

Answer

In order to calculate the HVAC CFM formula, you need to use a suitable formula for the spacing in question. The default formula is CFM = BTU/Hr / ( 1.08 x Temperature Difference). You can find other formulas by going to HVAC technician websites.
Reference:
Q&A Related to "CFM Formula HVAC?"
to get the CFM you take the cross-sectional area ( length x width ) of the rectangular duct or pi x r^2 for round and multiply by the velocity ..example,,,,vel= 2 m/sec.. ,,,,,,50
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1. Measure the length and width of a room where you need to calculate the required airflow. Multiply these together to get the square footage of the room, i.e. if the room is 10 ft
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Cubic Ft / Min.
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This is the formula for fan CFM: Cubic feet per minute: air speed (feet per minute) X area
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