8-90 Water at 15°C is to be pumped from a reser- voir (zA tion (zB = 9 m) through two 25-m-long plastic pipes con- nected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent effi- cient motor-pump unit that draws 8 kW of electric power dur- ing operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are consid- ered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes. 2 m) to another reservoir at a higher eleva- Reservoir B ZB = 9 m 25 m 3 cm Reservoir A 5 cm ZA = 2 m Pump FIGURE P8-90

8-90 Water at 15°C is to be pumped from a reser- voir (zA tion (zB = 9 m) through two 25-m-long plastic pipes con- nected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent effi- cient motor-pump unit that draws 8 kW of electric power dur- ing operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are consid- ered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes. 2 m) to another reservoir at a higher eleva- Reservoir B ZB = 9 m 25 m 3 cm Reservoir A 5 cm ZA = 2 m Pump FIGURE P8-90

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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8-90 Water at 15°C is to be pumped from a reser- voir (ZA tion (z=9 m) through two 25-m-long plastic pipes con- nected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent eifi- cient motor-pump unit that draws 8 kW of electric power dur- ing operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are consid- ered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes. = 2 m) to another reservoir at a higher eleva- Reservoir B ZB 9 m 25 m qo thpb svliv 3 cm 8 or a Reservoir A 5 cm 5020 ZA=2 m Pump FIGURE P8-90
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