Question 8.20: Calculate the power required to pump oil of density 850 kg/m...

Chemical Engineering: Solutions to the Problems in Volume 1

Calculate the power required to pump oil of density 850 kg/m³ and viscosity 3 mN s/m² at 4000 cm³/s through a 50 mm pipeline 100 m long, the outlet of which is 15 m higher than the inlet. The efficiency of the pump is 50%. What effect does the nature of the surface of the pipe have on the resistance?

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