A simple impulse turbine has a mean blade speed of 250 m/s. The nozzle angle is 20 and the steam velocity from the nozzle is 600 m/s. The turbine uses 3000 kg/h of steam. The blade outlet angle is 25 . Determine the amount of energy converted to heat by blade friction if the blade friction factor is 0.86.

A simple impulse turbine has a mean blade speed of 250 m/s. The nozzle

1.	A simple impulse turbine has a mean blade speed of 250 m/s. The nozzle angle is 20 and the steam velocity from the nozzle is 600 m/s. The turbine uses 3000 kg/h of steam. The blade outlet angle is 25 . Determine the amount of energy converted to heat by blade friction if the blade friction factor is 0.86.
A.	65.32 kJ
B.	30.50 kJ
C.	45.32 kJ
D.	78.32 kJ
Answer» C. 45.32 kJ

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