Answered: Water is to be pumped from a reservoir…

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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Question

Water is to be pumped from a reservoir (Z_A= 5m) to another reservoir at a higher elevation (Z_B=13m) through two 36-m-long pipes connected in parallel. The pipes are made of commercial steel, and the diameters of the two pipes are 4 and 8 cm.The volume flow rate throughpipe 1is 4 L/s.The volume flow rate through pipe 2 is 25 L/s.The Tee connection near the pump is threaded. The two smooth bends are also threaded. The minor loss of Tee connection near the B reservoir is negligible. Determine the necessary pump head.

Control
= 13 m
4= 36 m
D, =4 cm
volume
B
-boundary
=5m
Pump
D,=8 cm
L= 36 m

Tee (branch flow):
Tee (line flow):
Flanged: K, - 0.2
Threaded: K, = 0.9
Bends and Branches
Flanged: K, - 1.0
Threaded: K, = 2.0
90° smooth bend:
Flanged: K = 0.3
Threaded: K, - 0.9

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