In: Mechanical Engineering
Soybean oil at 30 degress Celsius is to be pumped from an open vat through 60 m of standard galvanized iron pipe (internal diameter of 9 cm) into the top of a stroage tank that is 17 m above the surface of the vat. The pipeline contains 3 type B elbows and a gate valve. It is desired to pump the oil at 13.7 m^3/hr.
1) How much work head must be added by a pump at this pumping rate?
2) Assuming 75% efficiency, what size motor (watt) would the pump require?
3) What percentage of the total frictional head loss is due to pipe friction alone (major losses)?