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Engineering ToolBox > Sensible Heat Flow
The sensible heat flow can be expressed in SI-units (metric) as
Qs = cp ρ q Δt / 3600 (1)
where
Qs = sensible heat flow (kW)
cp = specific heat of air (kJ/kg K)
ρ = air density at standard conditions (kg/m3)
q = air flow (m3/hr)
Δt = temperature (oC)
In English (imperial) units the sensible flow heat can be expressed as
Qs= 60 cp ρ q Δt = 1.075 q Δt (2)
where
Qs = sensible heat flow (Btu/hr)
cp = 0.2388 - specific heat (Btu/lboF)
ρ = 0.075 - air density at standard conditions (lb/ft3)
q = air flow in (ft3/min)
Δt = temperature difference (oF)