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A pipeline (eps = 0.0015 mm) carries oil (density = 989 kg/m , viscosity = 7.63e-4 Pa-s) at a rate of 0.0021 m /s. Determine the optimum economic pipe diameter in meters and also suggest Diameter Nominal for Schedual 40 ste pipe, given that: C2 = RO 0.125 /kwh C1 = RO 700 /mn+1 t = 5196 hr/yr F =6.75 n = 1.2 a = 0.10 b = 0.01 n = 0.75 What is the the fluid velocity in selected Nominal pipe? Write it in the Moodle answer field