An Alaska pipeline is 48 in in diameter and 800 miles long. It carries crude oil from Prudhoe bay to Valdez and is designed to deliver about 2.1 million barrels per day. Use viscosity data from the literature. Find the total pressure drop in the system and the power needed to maintain the flow.

Note that power is the rate at which work is done (the familiar \(P V\) term in thermodynamics). Hence

\[\text { Power }=\text { Pressure drop } \times \text { volumetric flow rate }\]