1. Water Distribution Network for South- East Zone of Qalqilia City
Amjad Abd AL-Nasser Omar
and
Rafat Jamal
Under the direction of
Dr. Hafez Shaheen

2. Outline Objectives Study Area Methodology Results WaterCAD
Introduction
Study Area
Methodology
Results
WaterCAD

3. `water distribution network
Objectives
The main objective of this project is:
To analyze and design of the WDN for the South- East Industrial Zone of Qalqilia City using WaterCAD
`water distribution network

4. Introduction
Water distribution network is necessary in order to facilitate the process of providing consumers with clean water and quantity that suit their needs and control the quality of this water because the presence of this network ensure unpolluted water and access to consumers with best quality.

5. Study Area Population Climate
Location C B D
The Source of water for distribution network

6. Population for Qaqilia City
Year
Population
1922
2,803
1931
3,867
1945
5,850
1961
11,402
1980
20,000
1997
31,772
2007
41,739
2010
45,763
Population for Qaqilia City

7. Population P(t) = P0 + k2t Design period= 35 years.
41,739 persons in 2007
31,772 persons in 1997
k2= 996.7
The population after 35 years “2048”
P(2048)= 83,638 capita
the growth rate= 1.6 % by using this equation Pn = Pi (1+i) n

8. B:
Location

9. C: Climate A)Temperature B) Wind C) Rainfall
Annual average temperature is between ° C
Average maximum temperature in Qalqilia is 22.3 ° C.
Minimum temperature is 15.6 ° C.
B) Wind
The prevailing wind direction in Qalqilia, southwest and northwest at an annual average speed of 3.4 km/h
C) Rainfall
Average annual rainfall in Qalqilia= 559 mm
The average number of rain days= days.

10. Sources of water in Qalqilia
Rainfall
B) Evaporation
C) Groundwater
D) Wells
Gayyaza Well
Al Wakalah Well
Al Maslakh well
Sofin well
Abd Al Rahman Well

11. located at the South- East part of the city center.
D: The Source of water for distribution network of industrial zone
The main sources is:
Abd Al Rahman Well:
located at the South- East part of the city center.
Its depth is ( ) m.
water level in the well (20-25) m.
diameter of the well is 0.5 m.
designed to produce 90 m3/hr .

12. Methodology Site investigation Collecting Data Qalqilia Municipality
other sources
Consumption
AutoCAD map
maps Analysis
AutoCAD and GIS
Analysis WDN
WaterCad
demand
Pipes & node
Pump and Storage tank
Result
velocity
Pressure
Methodology

13. Data related to the study area:
Contour map.
Information from Qalqilia Municipality
AutoCAD and GIS data.

14. Water demand
Represent the necessary minimum amount of water sufficient to meet the basic need for drinking, sanitation, and water uses; it might be extended to include the water requirements for a particular purpose such as irrigation, municipal supply and storage.

15. Registered professional shops and light industries in Qalqilia
Professional Shops Light Industry
The Num
Auto oil shops 5
Building Material shops 20
Auto spare shops 30
Carpentry and Blacksmith tools shops 12
Tailoring workshops 70
Electrical appliances repair workshops 27
Gold shaping workshops 3
Carpentries 47
Blacksmith and lathing workshops 55
Auto general mechanic workshops 53
Car wash and oil changes workshops 13
Auto body repair and painting workshops 40
Auto electrical repair workshops
Auto tire repair workshops 14
Aluminum window/door assembly workshops 19
Tiles and block making factories 4
Stone cutting factories
Granite making factories 6
Tissues making factories 2
Meat canning factories
Total
440

16. The average water consumption for registered professional shops and light industries is about 700 l/d/unit.
The total number of unit= 440 unit
The total water consumption for Registered professional shops and light industries
= 440 * 700
= l/d
= m3/hr.

17. The water demand for expected factories
Water demand for total area(m3/hr)
Water demand Per Area (l/s/ha)
Total area (ha)
Num
Area (ha)
Type of industry
1.4
0.78
0.4 1
0.5
Food & beverage
0.52
0.43
0.34
Chemical &Cosmetics
1.86
0.7
0.74
Building material
0.31
0.2
Textile & Clothing
0.29 2
0.17
Plastic & Rubber
4.43
2.02 6
Total

18. Total water consumption for industrial area = 4.43 + 12.83
= 17.26m3/hr
Peak factor = 1.5
Design water demand = 17.26*1.5
= 25m3/hr

19. Water tank design

20. The water demand for working hourS
The capacity of tank:
The water demand for working hourS

21. From the chart,
75-25 = 50 m3/hr
The capacity= 50*8
= 400 m3
Now, we add 100 m3 (Fire)
The capacity= (fire) = 500 m3
The cross section for the tank is Circular
With diameter = 11m

22. Number of hour to fill the tank= 16 hour
Time schedule to fill the tank

23. Water CAD Software
Water CAD is a powerful yet easy to use program that helps engineers design and analyze complex, pressurized piping systems And Water CAD help to analyze multiple time-variable demands at any junction node.

24. Preparing data Junction : Elevation → contour maps
Demand rate → We distribute the demands on the junctions as the following:
And For the remains
junctions the demand = 1.3 m3/h
Junction
Demand m3/h
J-1
2.79
J-2
2.1
J-12
0.51
J-13
J-14
0.47
J-20
0.78

25. pipe 1 . Find the length of each pipe using WaterCAD program.
2. Specify start and end node for each pipe.
3. Assume an adequate diameter for each pipe.
4. The materials for the pipes is PVC , The roughness of it is 150 as reported by C = Hazen-Williams roughness Coefficient.

26. Design considerations
After running process, checks have to be made to make sure that the velocity in pipes and the head at nodes fulfill required criteria which indicate that:
Allowable nodal pressure arranges between (20-80) meter head.
Allowable velocity in the pipes arrange between (0.3 −3) meters per second.

27. The Result
Pressure:

28. Velocity

29. Result Maximum velocity (m/s) = 1.35 Minimum velocity (m/s) = 0.3
Maximum Pressure (m H2O) = 46.1
Minimum Pressure (m H2O) = 20.9
Diameter (in)
length (m)
2 in
1163
3 in 16
4 in
6 in
414
Total
1609