1. DZ11 Qweisma

2. Introduction - Current System
DZ11 is divided into 12 district
Water Source: Ø600mm from Al-Qwesima reservoir which has an elevation of 984.
Number of customers: 35,000 customers
Number of persons as per CDM study : 8.1 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.

3. Population District No. of Customers Population 11A 2,566 20,785 11B
4,557
36,912
11C
1,418
11,486
11D
526
4,261
11E
6,763
54,780
11F
882
7,144
11G
1,334
10,805
11H
5,962
48,292
11I
3,264
26,438
11J
3,263
26,430
11K
360
2,916
11L
4,166
33,745
Total
35,061
283,994

4. Entrance District Elevation
Min. and Max. Elevations
District
H.P.
L.P.(All)
Difference
Entrance District Elevation
11A
946
906 40
940
11B
934
840 94
912
11C
928
859 69
921
11D
903
874 29
11E
925
861 64
915
11F
941
914 27
938
11G
933
896 37
929
11H
930
826
104
924
11I
948
885 63
11J
854 67
901
11K
961 33
11L
860 61
900
Reservoir Elevation:
984 meters
Reservoir height: 8.5m

5. Hydraulic Analysis C(Roughness Coefficient) Zone 1 Total 141,183
Base consumption l/c/d
20% NRW
C(Roughness Coefficient)
Ex. DI
PE & New pipes
Zone 1
District
Population
Avg. Demand (m³/d)
Peak Demand (m³/d)
11B
36,912
5,537
11074
11C
11,486
1,723
3446
11D
4,261
639
1278
11E
54,780
8,217
16434
11L
33,745
5,062
10123
Total
141,183
21,177
42,355
Ex Steel and Galv

6. Hydraulic Analysis Total 142,811 21,422 42,843 Zone 2 11A 20,785 3,118
District
Population
Avg. Demand (m³/d)
Peak Demand (m³/d)
11A
20,785
3,118
6235
11F
7,144
1,072
2143
11G
10,805
1,621
3242
11H
48,292
7,244
14488
11I
26,438
3,966
7932
11J
26,430
3,965
7929
11K
2,916
437
875
Total
142,811
21,422
42,843
Zone 2

7. Main Feeders - Existing

8. Schematic - Existing
Schematic - Existing

9. Hydraulic Model – Zone 1

10. Hydraulic Model Results - Zone 1
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentage P >7
11B 75 25
11C 16 84
11D
100
11E 83 17
11L 80 20
All DZ
72%
28% 0%

11. Hydraulic Model – Zone 2

12. Hydraulic Model Results - Zone 2
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages
>7
11A
100
11F 86 14
11G
11H 88 12
11I
11J
11K 17 83
All DZ
89%
11%

13. Proposed System The proposed solutions include: Split DZ
Modify Districts’ Boundary
Spilt Districts
Add main Feeders
Network Reinforcement
Add PRVs and District Meters

14. DZ11-Zone 1

15. DZ11-Zone 2

16. Main Feeders - Proposed
Proposed Main Feeders – Zone 1
Proposed Main Feeders – Zone 2

17. Schematic - Proposed
Schematic - Proposed

18. District B

19. District C

20. District E

21. District L

22. Zone 1 Hydraulic Model – Peak Demand

23. Zone 1 Hydraulic Model – Peak Demand
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages>7
11B 96 4
11C
100
11D
11E 99 1
11L
All DZ 0%
98% 2%

24. Zone 1 Hydraulic Model – Avg. Demand

25. Zone 1 Hydraulic Model – Avg. Demand
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages >7
11B 89 11
11C 55 45
11D 50
11E 93 6 1
11L
100
All DZ 0%
89%
11%

26. Zone 1 Hydraulic Model – Night Flow

27. Zone 1 Hydraulic Model – Night Flow
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages >7
11B 99 1
11C
100
11D
11E 98
11L 3 97
All DZ
0.5%
98% 1%

28. PRV Settings for Zone 1 District Peak Flow Average Flow Night Flow
From (bars) To
(bars)
Flow (m³/d)
BC&D
6.4
3.5
15,768
6.9
2.0
7,899
7.1
1,580 E2
7.0
6,875
7.5
0.5
3,438
7.7
688 E1
7.2
3.0
9,559
7.6
1.0
4,779
7.8
956 L
8.0
10,122
8.9
2.5
5,061
9.3
1,012 B2
4.5
4,665
5.2
1.5
1,780
5.9
356 C2
4.6
1,367
683
137

29. PIPES ESTIMATED QUANTITIES (ZONE 1)
District
Diameter
Length (m)
Main Line Zone 1
600
1430 E1
300
750 B2
200
500
Total
2,700

30. PRV ESTIMATED QUANTITIES (ZONE 1)
District
New
BCD √ B2 C2 E1 E2 L
Total 6

31. Zone 2 Hydraulic Model – Peak Demand

32. Zone 2 Hydraulic Model – Peak Demand
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages >7 A
100 F G H 13 83 I 79 21 J 57 34 9 K
All DZ 1%
70%
24% 6%

33. Zone 2 Hydraulic Model – Avg Demand

34. Zone 2 Hydraulic Model – Avg Demand
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages >7 A 97 3 F
100 G 74 26 H 93 7 I 87 13 J 65 29 2 K
All DZ 0%
75%
22% 1%

35. Zone 2 Hydraulic Model – Night Flow

36. Zone 2 Hydraulic Model – Night Flow
Pressure
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages >7 A 93 7 F
100 G 78 22 H 37 57 I 4 33 63 J 1 71 20 8 K
All DZ 3%
63%
20%
15%

37. PRV Settings for Zone 2 District Peak Flow Average Flow Night Flow
From (bars) To
(bars)
Flow (m³/d) F
4.1
1.0
2,144
5.1
1,072
5.4
214
AG&F
4.0
2.5
9,477
5.0
2.0
4,739
5.3
948 H
5.8
3.5
14,488
7.3
3.0
7,244
7.8
1,449 K
875
4.9
437
5.2 87 J
Inactive
7,866
7.6
3,979
8.2
833 I
4.2
7,935
4.5
3,968
794

38. PIPES ESTIMATED QUANTITIES (ZONE 1)
District
Diameter
Length (m) H
400
1100
300
530 I
1540
Total
3,200

39. PRV ESTIMATED QUANTITIES (ZONE 1)
District
Replace
New
A,G √ F H I J  √ K
Total  2 4

40. Percentages 5<P<7
District J
District
Percentages < 1
Percentage 1<P<5
Percentages 5<P<7
Percentages >7
J (ALL) 57 34 9
J1 & J2 81 16 3

41. District J