Standard-air sensible heat calculator

Uses air density 0.075 lb/1 ft³ and specific heat 0.24 Btu/(1 lb·1 Δ°F).

Units

q_{\text{air}} = 1.08 \times \mathrm{CFM} \times \Delta T

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

q_{\text{air}} = 1.08 \times 2000 \times 20 = 43{,}200

Symbol	Meaning	Unit
$q_{\text{air}}$	air sensible heat rate	Btu/h
$\mathrm{CFM}$	airflow at assumed standard density	ft³/min
$\Delta T$	air temperature change	°F

Symbol	Meaning	Unit
$q_{\text{air}}$	air sensible heat rate	kW
$Q_{\text{air}}$	airflow at assumed standard density	L/s
$\Delta T$	air temperature change	K

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.