In a detergent-making process, 5.3 m³ /h of water flows through a 50.8 mm pipe system as follows: Exit from pump, 610 mm vertical, open gate valve, 4.267 m vertical, 908 bend, 3.658 m horizontal, 1/4 open globe valve, 6.096 m horizontal, 908 bend, 1.829 m horizontal, 908 bend, 3.658 m vertical, 908 bend, 4.267 m horizontal, 908 bend, 1.219 m vertical, 908 bend, 8.534 m horizontal, open gate valve 914 mm horizontal, entry to tank containing 9.144 m 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?