In a stage of an impulse steam turbine, the mean diameter of the blade ring is 800 mm and the speed of rotation is 3000 rpm. The direction of the final absolute velocity of steam is axial. The inlet and exit angles of the blade are 30 degrees. Assuming a blade friction factor of 0.85 and a steam flow rate of 1 kg/s, determine: (a) the nozzle angle, (b) the absolute velocity of steam leaving the nozzle, (c) the enthalpy drop in the stage, (d) the tangential thrust, (e) the axial thrust, (f) the blading work, and (g) blading efficiency.
