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Q5. Steam at a pressure and temperature of 4 bar and 200℃ respectively, leaves the fixed blades of a 50 % reaction turbine stage.

The moving blade inlet and outlet angles are 50° and 35° respectively. The mean blade speed is 170 m/s. The blade height is 10 % of the blade ring mean diameter. The mass flow rate of steam through the stage is 14 kg/s.

Calculate EACH of the following:

(a) The blade height; (5)

(b) The stage power; (4)

(c) The percentage increase in the moving blade relative velocity; (4)

(d) The stage specific enthalpy drop. (3)