Question: The following data relate to a Francis turbine:
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Net head = 70 m, speed = 700 rpm, over all efficiency = 85% shaft power = 350 KW, Hydraulic efficiency = 92%, flow ratio = 0.22, Breadth ratio = 0.1, outer diameter of runner = 2 x inner diameter of runner, velocity of flow is constant & outer discharge is radial. The thickness of the vanes occupies 6% of circumferential area of the runner.

Determine.

a) Guide vane angle.

b) Runner vane angels at inlet & outlet.

c) Diameter of runner at inlet & outlet.

d) Width of wheel at inlet.


Subject : Thermal and Fluid Power Engineering

Topic : Impacts of Jets and Water Turbine

Difficulty : High

tfpe(66) • 590 views
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written 20 months ago by gravatar for ashusarode90 ashusarode9030
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