Question

In a reaction turbine, the mean blade ring diameter is 1 m and the

turbine runs at a speed of 50 RPS. The blades are designed for 50% 

reaction with exit angles 30º and inlet angles 50º. The turbine is

supplied with steam at the rate of 160 kg/sec and the stage

efficiency is 85%. Determine—

(a) power output of the stage;

(b) percentage increase in relative velocity.

Answer 1

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