8–90 Water at 15°C is to be pumped from a reservoir (ZA = 2 m) to another reservoir at a higher elevation (zB = 9 m) through two 25-m-long plastic Page 432 pipes connected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent efficient motor-pump unit that draws 8 kW of electric power during operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes. Reservoir B Z =9 m 25 m 3 сm Reservoir A

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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8–90 Water at 15°C is to be pumped from a reservoir (ZA = 2 m) to another reservoir at a higher elevation (zB = 9 m) through two 25-m-long plastic
Page 432
pipes connected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent efficient motor-pump unit that
draws 8 kW of electric power during operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are considered
to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes.
Reservoir B
Z=9 m
25 m
3 сm
Reservoir A
5 сm
ZA =2 m
Pump
Transcribed Image Text:8–90 Water at 15°C is to be pumped from a reservoir (ZA = 2 m) to another reservoir at a higher elevation (zB = 9 m) through two 25-m-long plastic Page 432 pipes connected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent efficient motor-pump unit that draws 8 kW of electric power during operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes. Reservoir B Z=9 m 25 m 3 сm Reservoir A 5 сm ZA =2 m Pump
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