5. For the water circulation system below, if the minimum power added to the water by the pump
is defined as $hp[fi]=20-2000Q^2$ \rightarrow pump head, determine: a: the flow rate through the
filter (Q in ft3/s), if the pump efficiency is 85%, and b: The pump work (HP).
$K_{L ext} = 1.0$
$K_{L elbow} = 1.5$
$K_{L valve} =6.0$
$K_{L filter} = 12.0$
Filter
Pump
$K_{L ent}=0.8$
200 ft. of 0.1-ft-diameter
pipe with elD = 0.01