A lossless motor drives the fan shown in Fig. P12.40 at \(40 \mathrm{~Hz}\). The power input to the motor is \(40 \mathrm{amps}\) at 440 volts. For the geometry shown, what is the discharge flow rate of air through the fan? Assume that the tangential component of the velocity leaving the impeller is equal to that of the impeller at that point. The exit air temperature \(T_{2}=15^{\circ} \mathrm{C}\).

Figure P12.40

Transcribed Image Text:

'0.3 m V Vez -1.2 m-