Optimum Blade Velocity of Impulse Turbine - GATE '98 ME
If Vn and α are the nozzle exit velocity and nozzle angle in an impulse turbine, the optimum blade velocity is given by,
A. Vn cos2α
B. Vn sin 2α
C. (Vn cosα)/ 2
D. (Vn^2)/2
Ans: The correct option is D.
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