When the valve $($KL $=0\mathrm{.}15)$ is opened, the water in a canal is pumped at $30$ ft$3/$s through a drainage pipe $($diameter d $=1\mathrm{.}4$ ft$)$ across a two$-$lane road embankment using a $22-$hp turbine runs. The corrugated steel pipe of roughness $0\mathrm{.}024-$in has two bends of loss coefficient KL $=0\mathrm{.}112.$ Use H $=7\mathrm{.}1$ ft and z $=7\mathrm{.}5$ ft$.$ The width, D of the embankment is $24\mathrm{.}32$ ft$.$ Determine the efficiency of the turbine $.$When the valve $(KL=0\mathrm{.}15)$ is opened, the water in a canal is pumped at $30ft\frac{3}{s}$

through a drainage pipe $($diameter $d=1\mathrm{.}4ft)$ across a two$-$lane road

embankment using a $22-$hp turbine runs. The corrugated steel pipe of roughness

$0\mathrm{.}024-$in has two bends of loss coefficient $KL=0\mathrm{.}112.$ Use $H=7\mathrm{.}1ft$ and $z=7\mathrm{.}5ft.$

The width, D of the embankment is $24\mathrm{.}32ft.$ Determine the efficiency of the

turbine $[\%].$

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