Answered: Based on the layout of the water supply…

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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Based on the layout of the water supply system, how much pressure in psi will be available at the faucet of the 2^nd floor of the residential building as show in Figure 1 below? The pressure at the source is 75 psi. Do you think that the pressure is enough for the building? Consider flow through the delivery pipe, Q = 3.75 cfs and diameter of the pipe, D = 4.25 inch. Ignore the minor pressure losses and use the following formulae to calculate the major pressure losses. If the pressure on the 2^nd floor is not with the standard limit of 50 – 60 psi, a pump needs to be added in the place 65 ft from the source, as shown. Estimate the pump power in horsepower to provide a pressure of 58 psi in the house

L v2
h₁ = 1 D 28'
f
2g
f= friction factor (0.01)
p=yh
1
Pressure = 75 psi
Pump
Pump
Horizontal pipe length = 100 ft.
Figure 1
2
Vertical pipe
length = 25 ft.
Residential building

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