The pressure at section (2) shown in the figure below is not to fall below 70 psi when the flowrate from the tank varies from 0 to 1.0 cfs and the branch line is shut off. Determine the minimum height, h, of the water tank under the assumption that (a) minor losses are negligible, (b) minor losses are not negligible. Assume h₁ = 4 ft, h₂ = 8 ft, the entrance is sharp-edged. (a) h= (b) h= ft ft h 600 ft with 15 90° elbows All pipe is 6-in.-diameter plastic (eID=0), flanged fittings Branch line 900 ft (2) Main line
The pressure at section (2) shown in the figure below is not to fall below 70 psi when the flowrate from the tank varies from 0 to 1.0 cfs and the branch line is shut off. Determine the minimum height, h, of the water tank under the assumption that (a) minor losses are negligible, (b) minor losses are not negligible. Assume h₁ = 4 ft, h₂ = 8 ft, the entrance is sharp-edged. (a) h= (b) h= ft ft h 600 ft with 15 90° elbows All pipe is 6-in.-diameter plastic (eID=0), flanged fittings Branch line 900 ft (2) Main line
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:The pressure at section (2) shown in the figure below is not to fall below 70 psi when the flowrate from the tank varies from 0 to 1.0 cfs
and the branch line is shut off. Determine the minimum height, h, of the water tank under the assumption that (a) minor losses are
negligible, (b) minor losses are not negligible.
Assume h₁ = 4 ft, h₂ = 8 ft, the entrance is sharp-edged.
(a) h=
(b) h=
ft
ft
600 ft
with 15
90° elbows
All pipe is 6-in.-diameter plastic
(E/D=0), flanged fittings
Branch line
900 ft
(2) Main
line
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