Question: The two-loop water-distribution system in Example 4.9 is not functioning effectively. The demand for water at junction F is being met but not at the

The two-loop water-distribution system in Example 4.9 is not functioning effectively. The demand for water at junction F is being met but not at the pressure required by the industrial customer. (The industrial customer would like to have a pressure head of 14 m on the water delivered.) The water company has decided to increase the diameter of one pipe in the network by 5 cm. Determine which pipe should be replaced to have the greatest impact on the pressure in the system, specifically the pressure at node F. (Examine the output table of Example 4.9 for head losses, flow rates, and pipe sizes. One pipe stands out as the best choice, although there is a second pipe that is only slightly worse.) Replace the pipe of your choice (increase the diameter by 5 cm) and determine the pressure increase at junction F. Pipe network analysis software would be useful.

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It is clear from the solution table in Example 49 that pipes GD and BF are the pipes that should be replaced by larger diameter pipes Both have head losses that are over 20 m the next largest head los... View full answer

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