Q5. Steam flows into the nozzles of a turbine stage from the blades of preceding stagewith a velocity of 100m/s and issues from the nozzles with a velocity of 325 m/s at angleof 20° to the wheel plane. Calculate the gross stage efficiency for the following data:Mean blade velocity=180m/sExpansion efficiency for nozzles and blades = 0.9Carry over factor for nozzles and blades = 0.9Degree of reaction = 0.26Blade outlet angle = 28°

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Answered: Q5. Steam flows into the nozzles of a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The velocity of steam existing the nozzle of the impulse turbine is 400m/s. The blades operate close to the maximum blading efficiency and the speed ratio is 0.45. The nozzle angle is 20o. Considering equiangular blades and neglecting blade friction, calculate the power for a steam flow of 0.6 kg/s.
Can you draw a diagram of what’s happening please thanks
A single jet Pelton wheel is required to drive a generator to develop 10Mw. The available head at the nozzle is 762m. Assuming electric generator efficiency is 95%, Pelton wheel efficiency 87%, coefficient of velocity 0.97, mean bucket velocity 0.46 of the jet velocity, outlet bucket angle 15° and the friction of bucket reduces the relative velocity by 15%, find (a) the flow rate of water through turbine (b) the diameter of the jet (c) the force exerted by the jet to the nozzle.
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Q4 see photo provided.
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