A type of oil [SG = 0.85 , visco = 211cP] is pumped at a rate of 86 ft^3/hr from an open reservoir to the bottom of another open tank. The liquid level in the reservoir and the bottom of the discharge tank are vertically 17 feet apart. Friction losses in the pipe total to 7.5% of the elevation head. If the goal is to keep the level of liquid in the discharge tank at a constant 4.5 feet, calculate the theoretical power requirement of the process in ft lbf /s. If the pump has an efficiency of 65 %, calculate the actual power requirement.

Structural Analysis
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A type of oil [SG = 0.85 , visco = 211cP] is pumped at a rate of 86 ft^3/hr from an open reservoir to the bottom of another open tank. The liquid level in the reservoir and the bottom of the discharge tank are vertically 17 feet apart. Friction losses in the pipe total to 7.5% of the elevation head.

If the goal is to keep the level of liquid in the discharge tank at a constant 4.5 feet, calculate the theoretical power requirement of the process in ft lbf /s. If the pump has an efficiency of 65 %, calculate the actual power requirement.

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