While planning a future expansion, a water distribution pipe will be replaced as shown in Figure 2. The current plan is for the new configuration to have the same head-loss between points A and B once the new pipes are laid. Considering that the physical characteristics of these new pipes will be identical to the previously laid pipe (L, D, CHW), (A) what will the new operational flow be? After years of wear and tear while operating above the required flow, the pipes have prematurely degraded. The Hazen-Williams coefficients have dropped to: CHW1= 130, CHW2= 135, CHW3= 125. You must now (B) quantify the head-loss between points A and B for an operational flow of 200 l/s.
While planning a future expansion, a water distribution pipe will be replaced as shown in Figure 2. The current plan is for the new configuration to have the same head-loss between points A and B once the new pipes are laid. Considering that the physical characteristics of these new pipes will be identical to the previously laid pipe (L, D, CHW), (A) what will the new operational flow be? After years of wear and tear while operating above the required flow, the pipes have prematurely degraded. The Hazen-Williams coefficients have dropped to: CHW1= 130, CHW2= 135, CHW3= 125. You must now (B) quantify the head-loss between points A and B for an operational flow of 200 l/s.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:While planning a future expansion, a water distribution pipe will be replaced as shown in Figure 2. The
current plan is for the new configuration to have the same head-loss between points A and B once the
new pipes are laid.
Considering that the physical characteristics of these new pipes will be identical to the previously laid
pipe (L, D, CHW), (A) what will the new operational flow be?
After years of wear and tear while operating above the required flow, the pipes have prematurely
degraded. The Hazen-Williams coefficients have dropped to: CHW₁= 130, CHW2= 135, CHW3= 125. You
must now (B) quantify the head-loss between points A and B for an operational flow of 200 l/s.
A
-▬▬▬▬▬▬▬▬▬▬▬▬▬▬
LA-B = 150 m
D = 0.15 m
Qoperational =50 1/s
CHW= 150
B
▬▬▬▬▬
A
▬▬▬▬▬▬
Pipe 1
Pipe 2
Pipe 3
Figure 2 Initial (left) and future (right) pipe configuration
B
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