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# F11_hw10 - All minor losses are accounted for in the Σ K...

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ENV 4561 Fall 2011 Homework # 10 Assigned: November 3, 2011 Due: November 10, 2011 1. A 10 MGD water treatment plant distributes water to your community. The water travels through the distribution system shown in Figure 1 before arriving at your house. If the pressure leaving the plant is 60 psi, the water temperature is 70°F, and the pipes are cast iron (e = 0.0102 in), what will the pressure be at your home (P2)? Pipe Diameter Length Σ K No. (in) (ft 1 20 100 1 2 14 230 0 3 8 426 2.5 4 10 160 0.5 5 6 337 0 6 8 285 0 7 12 509 2 8 12 241 3 9 18 130 1.25 10 20 140 0.5 11 12 230 0 12 6 450 0.7 13 14 180 0 14 6 95 4.3 15 12 313 0 16 8 220 1.8 Assume and note the following: There is no elevation difference between the WTP and your house. The velocity in the pipe leaving the plant is equal to the velocity in the pipe at your house.

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Unformatted text preview: All minor losses are accounted for in the Σ K values in the following table (i.e. no additional K values need to be added.) Initially, assume that the flow is fully turbulent. 2. Find the discharge and pressure head in each pipe of the welded steel network shown in Figure 2. The pressure head at A is 115ft. Provide a diagram indicating direction of flow. WTP To system House 1 9 2 3 4 5 6 7 8 10 11 12 13 14 15 16 Figure 1 Q LEFT Q RIGHT P1 P2 Figure 2. Pipe network for problem 2...
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F11_hw10 - All minor losses are accounted for in the Σ K...

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