Answer:
23.06262m^3/s
Explanation:
The volume flow rate of the water is determined from the needed power output and the elevation difference:
Where, height (h) =221m, power(w)=50MW=50*10^6w
Density of water (ρ)=1000kg/m^3
Efficiency of turbine(η)=100%=1
V=W/ρηgh
=50*10^6m^3/(1)*(1000)*(9.81)*(221)s=23.06262m^3/s
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