- 11 2 The Steam From The Nozzles Of A Single Wheel Impulse Turbine Discharges With A Velocity Of 600 M S And At 20 To Th 1 (76.67 KiB) Viewed 60 times
11.2 The steam from the nozzles of a single-wheel impulse turbine discharges with a velocity of 600 m/s and at 20° to the plane of the wheel. The blade wheel rotates at 3000 rev/min and the mean blade radius is 590 mm. The axial velocity of the steam at exit from the blades is 164 m/s and the blades are symmetrical. Calculate: (i) the blade angles; (ii) the diagram work per unit mass flow rate of steam; (iii) the diagram efficiency; (iv) the blade velocity coefficient. (28° 47'; 126.2 kJ per kg/s; 70%; 0.799)