Answer to Question #284194 in Mechanical Engineering for Cynthia

Question

• A steam with a velocity of 600m/s enters an impulse turbine row of bladee at an angle of 25°C to the plane of rotation of the blades. The mean blade speed is 255m/s. The exit angle from the blades is 30°C. There is a 10% loss in-relative velocity due to friction in the blades. Determine:

(a) the entry angle of blades

(b) the work done /kg steam/s

(c) the diagram efficiency

(d) the end thrust/kg steam/ s

Answer 1

diagram efficiency:

Work done on the blades to the energy supplied to the blades. Work done on the blades per kg of steam to the total energy supplied per stage per kg of steam. The energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam.