Fan Laws

Q             = Volume Flow (m³/s)

Pt            = Total Pressure (kPa)

Ps           = Static Pressure (kPa)

W            = Absorbed Power (kW)

Kp           = Compressibility Factor

Fan Cropping Rules

Volume Flow = Diameter Ratio³

Pressure = Diameter Ratio^0.6

Power = Diameter Ration^3.5