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”?

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

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Transcribed Image Text

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