The pressure at the 2nd floor faucet in the residential building is estimated to be about 45 psi for Q = 2.5 cfs and D = 3.5 inch (Figure 1), which is less than the recommended domestic pressure range of 50 to 60 psi. It is considered that an additional pump will be installed at point 1 to provide the recommended pressure at the faucet. Estimate the additional pump horse-power requirement at point 1 to provide 60 psi pressure at the faucet.
The pressure at the 2nd floor faucet in the residential building is estimated to be about 45 psi for Q = 2.5 cfs and D = 3.5 inch (Figure 1), which is less than the recommended domestic pressure range of 50 to 60 psi. It is considered that an additional pump will be installed at point 1 to provide the recommended pressure at the faucet. Estimate the additional pump horse-power requirement at point 1 to provide 60 psi pressure at the faucet.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The pressure at the 2nd floor faucet in the residential building is estimated to be about 45 psi for Q = 2.5 cfs and D = 3.5 inch (Figure 1), which is less than the recommended domestic pressure range of 50 to 60 psi. It is considered that an additional pump will be installed at point 1 to provide the recommended pressure at the faucet. Estimate the additional pump horse-power requirement at point 1 to provide 60 psi pressure at the faucet.
Transcribed Image Text: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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