Water at 60°F and one atmosphere is being transferred from tank 1 to tank 2 with a 2-hp pump that is 75% efficient, as shown in Figure 8-7. All the piping is 4-inch schedule 40 steel pipe except for the last section, which is 2-inch schedule 40 steel pipe. All elbows are 4-inch diameter, and a reducer is used to connect to the 2-inch pipe. The change in elevation between points 1 and 2 is z2 - z1 = 60 ft. Tank 1 6 ft 4-inch 15 ft 4-inch 300 ft 4-inch 150 ft 4-inch Pump Tank 2 xnoot 90° Elbow = Reducer All piping is schedule 40 steel with diameters given. Figure 8-7 Pipe and Pump Network Calculate the expected flow rate in gal/min when all frictional losses are cor Repeat part (a) but only consider the frictional losses in the straight Dide who

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Problem Statement
Water at 60°F and one atmosphere is being transferred from
tank 1 to tank 2 with a 2-hp pump that is 75% efficient, as
shown in Figure 8-7. All the piping is 4-inch schedule 40
steel pipe except for the last section, which is 2-inch
schedule 40 steel pipe. All elbows are 4-inch diameter, and a
reducer is used to connect to the 2-inch pipe. The change in
elevation between points 1 and 2 is z2 - z1 = 60 ft.
Tank 1
6 ft
4-inch
15 ft
4-inch
300 ft
4-inch
150 ft
4-inch
Pump
Tank 2
= 90° Elbow
= Reducer
All piping is
schedule 40 steel
with diameters given.
Figure 8-7 Pipe and Pump Network
Calculate the expected flowrate in gal/min when all frictional losses are cor
Repeat part (a) but only consider the frictional losses in the straight pipe
a. Calculate the expected flow rate in gal/min when all
frictional losses are considered.
b. Repeat part (a) but only consider the frictional
losses in the straight pipes.
c. What is the % error in flow rate for part (b) relative to
part (a)?
d. Repeat parts (a), (b), and (c) for one of the liquids
given in Table D-3
Transcribed Image Text:Problem Statement Water at 60°F and one atmosphere is being transferred from tank 1 to tank 2 with a 2-hp pump that is 75% efficient, as shown in Figure 8-7. All the piping is 4-inch schedule 40 steel pipe except for the last section, which is 2-inch schedule 40 steel pipe. All elbows are 4-inch diameter, and a reducer is used to connect to the 2-inch pipe. The change in elevation between points 1 and 2 is z2 - z1 = 60 ft. Tank 1 6 ft 4-inch 15 ft 4-inch 300 ft 4-inch 150 ft 4-inch Pump Tank 2 = 90° Elbow = Reducer All piping is schedule 40 steel with diameters given. Figure 8-7 Pipe and Pump Network Calculate the expected flowrate in gal/min when all frictional losses are cor Repeat part (a) but only consider the frictional losses in the straight pipe a. Calculate the expected flow rate in gal/min when all frictional losses are considered. b. Repeat part (a) but only consider the frictional losses in the straight pipes. c. What is the % error in flow rate for part (b) relative to part (a)? d. Repeat parts (a), (b), and (c) for one of the liquids given in Table D-3
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