The single-stage, axial-flow turbomachine shown in Fig. P12.56 involves water flow at a volumetric flowrate of 9 m3/s. The rotor revolves at 600 rpm. The inner and outer radii of the annular flow path through the stage are 0.46 and 0.61 m, and β2 60°. The flow entering the rotor row and leaving the stator row is axial when viewed from the stationary casing. Is this device a turbine or a pump? Estimate the amount of power transferred to or from the fluid.
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