determine the pump brake power if the pump efficiency is 82%.
A pump is required to draw 50 liters per second of water from reservoir A, with static suction lift of
4.5 m to reservoir B, with static discharge head of 15 m. The pipe in the suction line is 6
in nominal diameter and 8 m long. The pipe in the discharge side is 4 in nominal diameter
and 15 m long. The fittings and valves installed in the suction line are: one foot valve, one
standard elbow and one gate valve; and in the discharge line are: one check valve, one
gate valve, two standard elbows. Assuming an absolute roughness of 0.24 mm for a cast
iron pipe, and an absolute viscosity of water of 0.01002 poise, and neglecting the head
loss in the foot valve and at the exit in the discharge reservoir, determine the pump brake
power if the pump efficiency is 82%. Draw the piping system.
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