z=174 m z=152 m H z=104 m B z=91 m Pump G C F 2. A pump is used to deliver water from a reservoir to a large tank for a flowrate of 1310 L/s at 20 °C. The connecting pipe connects the reservoir at B with a square- edged entrance. From B to C, the pipe is 760 m long and has three gate valves and two 90° elbows. Gage pressure at C is 197 kPa. From F to G, the pipe is 760 m long and contains two gate valves (Kg,v=0.136), four 90° elbows (K90=0.51) and connects the tank with an exit (Kext=1). All pipe is 508 mm in diameter (D) and made by cast iron (e = 0.26 mm). 1) Calculate the average velocity of water in the pipe. (10 pts) 2) Calculate the gage pressure at F. (15 pts) 3) If the pump's efficiency is 80%, calculate the power input to the pump. (10 pts) 4) If the shear stress can be calculated using the equation Д др T = 4 дх др and ≈pg дх hL,major L Calculate the average wall shear stress in section F-G. (15 pts)

z=174 m z=152 m H z=104 m B z=91 m Pump G C F 2. A pump is used to deliver water from a reservoir to a large tank for a flowrate of 1310 L/s at 20 °C. The connecting pipe connects the reservoir at B with a square- edged entrance. From B to C, the pipe is 760 m long and has three gate valves and two 90° elbows. Gage pressure at C is 197 kPa. From F to G, the pipe is 760 m long and contains two gate valves (Kg,v=0.136), four 90° elbows (K90=0.51) and connects the tank with an exit (Kext=1). All pipe is 508 mm in diameter (D) and made by cast iron (e = 0.26 mm). 1) Calculate the average velocity of water in the pipe. (10 pts) 2) Calculate the gage pressure at F. (15 pts) 3) If the pump's efficiency is 80%, calculate the power input to the pump. (10 pts) 4) If the shear stress can be calculated using the equation Д др T = 4 дх др and ≈pg дх hL,major L Calculate the average wall shear stress in section F-G. (15 pts)

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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