SAE 30 Engine Oil at 20 °C has a density of 0.882 g/cm² and kinematic viscosity of 272 mm³/s and is being discharged by a l-em- diameter, 10-m-long horizontal pipe from a storage tank open to the atmosphere. The height of the oil level above the center of the pipe is 5 m. Determine the flow rate of oil through the pipe. Use a kinetic energy correction factor of a = 2 if the flow is laminar, 1.04 if the flow is turbulent. • Hint: Solve it first with no losses to get a feel for fastest flow possible, then add in losses to find the flow rate with losses.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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SAE 30 Engine Oil at 20 °C has a density of 0.882 g/cm³ and
kinematic viscosity of 272 mm³/s and is being discharged by a l-cm-
diameter, 10-m-long horizontal pipe from a storage tank open to the
atmosphere. The height of the oil level above the center of the pipe is
5 m. Determine the flow rate of oil through the pipe. Use a kinetic
energy correction factor of a = 2 if the flow is laminar, 1.04 if the
Oil
5 m
flow is turbulent.
tank
1 cm
• Hint: Solve it first with no losses to get a feel for fastest flow
possible, then add in losses to find the flow rate with losses.
• Original problem said, “Do not include minor losses." (Why
would you? We haven't even discussed minor losses yet or
mentioned that losses we have been calculating are called major losses. Next class!)
Transcribed Image Text:SAE 30 Engine Oil at 20 °C has a density of 0.882 g/cm³ and kinematic viscosity of 272 mm³/s and is being discharged by a l-cm- diameter, 10-m-long horizontal pipe from a storage tank open to the atmosphere. The height of the oil level above the center of the pipe is 5 m. Determine the flow rate of oil through the pipe. Use a kinetic energy correction factor of a = 2 if the flow is laminar, 1.04 if the Oil 5 m flow is turbulent. tank 1 cm • Hint: Solve it first with no losses to get a feel for fastest flow possible, then add in losses to find the flow rate with losses. • Original problem said, “Do not include minor losses." (Why would you? We haven't even discussed minor losses yet or mentioned that losses we have been calculating are called major losses. Next class!)
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