Hydraulics Water in steady state flows through the 8-pipe network shown below. The flow rates, pipe information and node elevations are given in the information table. Use the Hardy Cross approach to analyze the network and complete the table. The initial

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Water in steady state flows through the 8-pipe network shown below. The flow rates, pipe information and node elevations are given in the information table. Use the Hardy Cross approach to analyze the network and complete the table. The initial flow rate of pipe #1 in ft3/sec is: Q1 = (y + 30,000) / 100,000, where: y = your GMU student ID number, with the “G” and leading zeros removed. Round your Q1calculation to two decimal places. To receive credit for this assignment you must attach all of your calculations with the completed table. If you use a spreadsheet, upload your spreadsheet model.

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CEIE 240 – Hydraulics HW# 10 Assignment HW Assigned: 08 April 2019 -- Due: 15 April 2019 at start of class Water in steady state flows through the 8-pipe network shown below. The flow rates, pipe information and node elevations are given in the information table. Use the Hardy Cross approach to analyze the network and complete the table. The initial flow rate of pipe #1 in ft3/sec is: Q1 = (y + 30,000) / 100,000, where: y = your GMU student ID number, with the “G” and leading zeros removed. Round your Q1 calculation to two decimal places. To receive credit for this assignment you must attach all of your calculations with the completed table. If you use a spreadsheet, upload your spreadsheet model. A B 1 2 C Loop 1 7 8 5 Loop 3 3 Loop 2 F 6 E 4 Name ______________________________________________________________________ G-number: ______________________ Q1 (initial) = ______________________________cfs Ans: Q(2) = 3.07 ft3/sec; hL(2) = 67.16 ft D CEIE 240 – Hydraulics, HW#10 Assignment Due: 15 Apr 2018 Page 2 Service Level Node Pipe Information Table el. (ft) Q(cfs) Type B 260 30 Supply 1 2 C 65 6 Demand D 155 4 Demand E 0 7 Demand 3 4 5 6 F 120 A 90 7 8 0 C L (ft) D (in) 155 1400 18 100 3680 10 110 1500 24 70 750 12 120 85 3840 2100 16 24 130 1650 36 90 2520 18 Q (cfs) hL (ft) Node P (psi) 20 --
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Explanation & Answer

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Loop 1

Pipe
P1
P8
P7

Length Diameter(ft)
1400
1.5
2520
1.5
1650
2.166666

C
155
90
130

KQn
K
Flow (ft^3/s) Direction
0.08066
10.2
CW
0.08066
0.39734
3.2
CW
0.39734
0.02197
3.2
CCW -0.02197
0.456036

ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659 10.344351 CW
0.080659
0.397342
3.2 CW
0.397342
0.021965
3.2 CCW
-0.02197
0.456036
ΔQ

Pipe

Length

Loop 1
Diameter(ft) C

K

Flow (ft^3/s) Direction KQn

P1
P8
P7

1400
1.5
2520
1.5
1650 2.1666658

155 0.080659 10.488115 CW
90 0.397342
3.2 CW
130 0.021965
3.2 CCW

0.080659
0.397342
-0.02197
0.456036

ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659
10.6313 CW
0.080659
0.397342
3.2 CW
0.397342
0.021965
3.2 CCW
-0.02197
0.456036
ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659 10.773913 CW
0.080659
0.397342
3.2 CW
0.397342
0.021965
3.2 CCW
-0.02197
0.456036
ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659 10.915964 CW
0.080659
0.397342
3.2 CW
0.397342
0.021965
3.2 CCW
-0.02197
0.456036
ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659 11.057459 CW
0.080659
0.397342
3.2 CW
0.397342
0.021965
3.2 CCW
-0.02197

0.456036
ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659 11.198406 CW
0.080659
0.397342
3.2 CW
0.397342
0.021965
3.2 CCW
-0.02197
0.456036
ΔQ

Pipe
P1
P8
P7

Loop 1
Length
Diameter(ft) C
1400
1.5
155
2520
1.5
90
1650 2.1666658
130

K
Flow (ft^3/s) Direction KQn
0.080659 11.338813 CW...

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