Academics – Applied Heat : 2022/OCT/08
Question
Q8. In a 50% reaction turbine stage, steam enters the fixed blades with a velocity of 288 mis~ the blade to steam ratio is 0.45 and the inlet angle is 24°
The mean blade ring diameter is 0.65 m.
(a) Sketch the combined velocity diagram, labelling all velocities and angles. (3)
(b) Determine EACH of the following:
(i) the speed of rotation of the turbine rotor. (3)
(ii) the blade inlet angles (4)
(iii) the diagram efficiency. (6)
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