Compressed Air / CDA

Actual, normal and FAD-labelled airflow conversion with explicit reference conditions.

Inside diametermmVelocitym/sGauge pressurebar(g)Temperature°C

Flow basisPressure basisAtmospheric pressurekPa(a)Actual temperature°CReference pressurekPa(a)Reference temperatureK

Normalized flow is not automatically FAD; FAD requires the applicable OEM test basis.

Formula / Method

Qa=A·V; Qn=Qa·Pabs/Pn·Tn/Tabs

Flow conversion only; specific power requires measured compressor input and FAD.