does anyone know how to calculate a blower CFM, given:
Motor Spec:
motor RPM = 1470rpm
3 phase induction motor
Type Y 180L4
415V, 40 Amps
Power = 30HP / 22kW
Frequency = 50Hz
diameter of motor pulley = 250mm
Blower spec :
diameter of fan pulley = 200mm
Fan diameter = 710mm
No. of blades = 10 blades
Thickness of blades = 3 mm
Type of fan = Centrifugal Fan (Type BC)
Efficiency = 85%.
Does anyone know how do i calculate the flow rate of the blower from the given motor @ fan RPM?
and if i want to know the air velocity produced at input and also at output?
please help me...

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