1. DZ01 – Marka D B E C B G A B C

2. Introduction - Current System
DZ01 is originally divided into 6 zones.
Current Water Source: Ain Ghazal Reservoir through two pipes Ø400mm & Ø300mm DI to Marka ground reservoir.
A New primary Ø600mm DI pipeline from Abu Alanda Reservoir will feed Marka ground reservoir (under construction) and Districts A & C will be supplied directly through Ø400mm DI branched from the same pipeline.
Number of customers: 18,000 customers.
Number of persons as per CDM study: 6.6 persons/customer.
Network received from GIS department and updated through meetings with Miyahuna operation and maintenance concerned personnel as well as extensive site visits to verify the elevations, boundaries, critical areas …etc.
Current System

3. Population Current System District No. of Customers Population 01A
8,203
54,140
01B
5,256
34,690
01C
2,438
16,091
01D
264
1,742
01E
1,652
10,903
01G
120
792
Total
18,000
118,500
Current System

4. Min. and Max. Elevations Current System District H.P. L.P.(All)
Difference
L.P (Developed)
01A
795
725 70
750 45
01B
776
690 86
696 80
01C
777
743 34
01D
728
674 54
01E
755
665 90
01G
740
685 55
692 48
Current System

5. Districts and Main Feeders Layout- Existing Network
Main Feeders- Existing
Current System

6. Current System- Schematic
Schematic- Existing
Current System

7. Hydraulic Analysis Demand: C (Roughness Coefficient):
District
Population
Avg. Demand (m³/d)
Peak Demand (m³/d)
01A
54,140
8,662
17,324
01B
34,690
5,550
11,100
01C
16,091
2,575
5,150
01D
1,742
280
560
01E
10,903
1,745
3,490
01G
792
127
254
Demand:
Base consumption 120 l/c/d
25% NRW
C (Roughness Coefficient):
Ex. Steel & Galv
Ex. DI
Ex. PE
New pipes
Current System

8. Hydraulic Model – Existing System Ground Reservoir Districts
Current System

9. Hydraulic Model – Existing System Tower Districts
Current System

10. Hydraulic Model Results- Existing
Pressure
Pressure Range (Bar)
Percentage (%)
P < 1
≈ 0
1 ≤ P ≤ 5 90
P > 5 10
Total
100%
Current System

11. Proposed System The proposed solutions include:
Modify Districts’ Boundaries
Spilt Districts
Replace main Feeder
Add PRVs and District Meters
Proposed System

12. Districts and Main Feeders Layout- Proposed System
Main Feeders- Proposed
Proposed System

13. Proposed System- Schematic
Schematic- Proposed
Proposed System

14. Min. and Max. Elevations- Proposed
District
H.P.
L.P.(All)
Difference
L.P (Developed)
01A
795
725 70
750 45
01B1
776
690 86
696 80
01B2
774
704
714 60
01B3
760 56 46
01B4
764
745 19
01C
777
743 34
01D
728
674 54
01E
755
665 90
01G
740
685 55
692 48
Proposed System

15. District B
Proposed System

16. PRVs’ Proposed Locations
Proposed System

17. Hydraulic Model – Proposed System Ground Reservoir Districts- Peak

18. Hydraulic Model – Proposed System Tower Districts -Peak

19. Hydraulic Model Results- Proposed- Peak Demand
Pressure
Pressure Range (Bar)
Percentage (%)
P < 1
≈ 0
1 ≤ P ≤ 5 95
P > 5 5
Total
100%
Proposed System

20. Model Results Comparison
Existing System
Proposed System - Peak
Pressure Range (Bar)
Percentage (%)
P < 1
≈ 0
1 ≤ P ≤ 5 90
P > 5 10
Total
100%
Pressure Range (Bar)
Percentage (%)
P < 1
≈ 0
1 ≤ P ≤ 5 95
P > 5 5
Total
100%
Proposed & Current Systems

21. Hydraulic Model – Proposed System Reservoir Districts- Average Demand

22. Hydraulic Model – Proposed System Tower Districts- Average Demand

23. Hydraulic Model Results Average Demand Scenario
Pressure
Pressure Range (Bar)
Percentage (%)
P < 1
≈ 0
1 ≤ P ≤ 5 95
P > 5 5
Total
100%
Proposed System

24. Hydraulic Model – Proposed System Reservoir Districts- Night Flow

25. Hydraulic Model – Proposed System Tower Districts- Night Flow

26. Hydraulic Model Results Night Flow Scenario
Pressure
Pressure Range (Bar)
Percentage (%)
P < 1
≈ 0
1 ≤ P ≤ 5 96
P > 5 4
Total
100%
Proposed System

27. PRV Settings- Peak, Average & Night Flow Scenarios
District
PRV DM
Peak Demand
Average Demand
Night Flow
Pressure From to (Bars)
Flow (m3/d)
01A √
3.9 ~ 2.5
22,474
3.9 ~ 1.5
11,237
3.9 ~ 1.3
2,247
01B1
Inactive
2.8 ~ 1.8
2,687
2.9 ~ 1.6
537
01B2
1.6 ~ 1.3
1,396
1.7 ~ 1.3
279
01B3
3.3 ~ 1.7
5,568
3.8 ~ 1.7
2,784
4.0 ~ 1.0
557
01B4 -
N/A
01C
4.0 ~ 2.0
5,149
3.5 ~ 1.7
2,575
515
01D
4.6 ~ 2.0
533
4.9 ~ 1.7
266
4.3 ~ 1.7 53
01E
6.4 ~ 4.9
3,489
6.8 ~ 4.0
1,745
6.2 ~ 3.7
349
01G
5.8 ~ 2.0
253
5.5 ~ 0.5
127 25
Proposed System

28. Pipe, PRVs & DMs Quantities
Line Diam. (mm) & Material
Total Length (m)
400 DI
≈ 500
District Name
PRV Quantity
DM Quantity
New or Replace
Pipe Diameter
(mm)
01A 1
New
New 400DI
01B1
Ex. 250DI
01B2
01B3
Ex. 300DI
01B4
Ex. 150DI
01C
Replace in Ex. Chamber
01D
Ex. 100DI
01E
Ex. 200DI
01G
Total 8 9
Proposed System

29. Thank you