In a detergent-making process, 1400 gal/h of water flows through a 2-inch pipe system as follows: Exit from pump, 2 ft vertical, open gate valve, 14 ft vertical, 908 bend, 12 ft horizontal, 1/4 open globe valve, 20 ft horizontal, 908 bend, 6 ft horizontal, 908 bend, 12 ft vertical, 908 bend, 14 ft horizontal, 908 bend, 4 ft vertical, 908 bend, 28 ft horizontal, open gate valve, 3 ft horizontal, entry to
In a detergent-making process, 1400 gal/h of water flows through a 2-inch
pipe system as follows:
Exit from pump, 2 ft vertical, open gate valve, 14 ft vertical, 908 bend,
12 ft horizontal, 1/4 open globe valve, 20 ft horizontal, 908 bend, 6 ft horizontal,
908 bend, 12 ft vertical, 908 bend, 14 ft horizontal, 908 bend, 4 ft
vertical, 908 bend, 28 ft horizontal, open gate valve, 3 ft horizontal, entry to
tank containing 30 ft of liquid.
a. If the pump and tank are both at grade level, estimate the head that the
pump must deliver.
b. If the pump inlet pressure is 25 psig, what is the outlet pressure?
c. Estimate the pump shaft work.
d. If the pump is powered by an electric motor with 85% efficiency, what is
the annual electricity consumption?
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