HVAC & Refrigeration
Intermediate
Airflow (Sensible)
Air volume flow needed to carry a sensible heat load (imperial units).
Formula
Variables
CFMAirflow (ft³/min)
QSensible load (BTU/h)
\Delta TTemp difference (°F)
Example
Q=21,600, ΔT=20: CFM = 1000
Did You Know?
The 1.08 factor bundles air density and specific heat at standard conditions.
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