Question

Optimum blade speed ratio for impulse turbin

Answer 1

blade velocity ratio could be the answer

Answer 2

HELLO FRNDS
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》 the impulse turbine works on the principle of impulse. Therefore it follows the impulse momentum equation.


》 Blade velocity of impulse turbine is given by,

Cb = (π d N) / 60

Where,
d = Drum diameter

N = Speed of turbine in r.p.m.

Stem velocity at inlet is represented by Ci

Blade speed ratio of an impulse turbine can be
---------------------------------------------------------------------- defined as the ratio of blade velocity to steam
_______________________________
velocity at inlet.
____________

s = (Blade velocity) / (Steam velocity at inlet)

s = Cb / Ci

___________________------________-----____

Thank you

@srk6