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Q8. A single stage impulse turbine has a mean blade diameter of 2.2 m, and the speed of rotation is 2547 rev/min. The nozzle angle 1s 20° to the plane of rotation and the steam leaves the nozzles at 1200 m/s.

The blade velocity coefficient is 0.8 and there is no axial thrust. For a steam mass flow rate of 0. 55 kg/s.

Calculate EACH of the following:

(a) the velocity of the blades;

(b the blade inlet angle;

(c) the blade outlet angle;

(d) the power output.