PROBLEM 4 :A crude oil with a specific gravity of 0.862 is delivered from one storage tank to another. A pump is used for fluid transfer that draws 1.208 gal/s and has an output of 2600 W. The suction...

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Extracted text: PROBLEM 4 :A crude oil with a specific gravity of 0.862 is delivered from one storage tank to another. A pump is used for fluid transfer that draws 1.208 gal/s and has an output of 2600 W. The suction line is a 5" nominal size Schedule 10 steel pipe. The pump discharged its flow through a 4" nominal size Schedule 40 steel pipe. The liquid level difference at Tank 1 and Tank 2 remains at 20 m throughout the process. Assuming that the temperature of the oil remains the same,: (Note: You must use the physical data from Perry's Handbook) a) Determine the frictional loss in J/kg, assuming that the pump's efficiency is 100%. b) Determine the new value of shaft work in hp when the pump's efficiency has dropped by 20%, assuming that the frictional loss value obtained earlier is the same. c) Determine the pressure drop at the pump in mm Hg using the efficiency and shaft work values in part (b). 20 m Ws