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Question

The large turbine in Fig. P3.184 diverts the river flow under

a dam as shown. System friction losses are h _{f} = 3.5 V ^{2} /(2 g ),

where V is the average velocity in the supply pipe. For

what river flow rate in m 3 /s will the power extracted be

25 MW? Which of the two possible solutions has a better

“conversion efficiency”?

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Engineering

Mechanical Engineering

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Transcribed Image Text

z1 = 50 m V D= 4 m Z2 = 10 m Z3 = 0 m Turbine