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An – Najah National University

An – Najah National University. Design of The Water Distribution Network of Qaryut Village Prepared By: Mohammad Sate' Mosa Mosa Supervisor: Dr. Mohammad N. Almasri 2010. 1 Introduction. 1.1 Water distribution networks (WDN):.

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An – Najah National University

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  1. An – Najah National University Design of The Water Distribution Network of Qaryut Village Prepared By: Mohammad Sate' MosaMosa Supervisor: Dr. Mohammad N. Almasri 2010

  2. 1Introduction

  3. 1.1 Water distribution networks (WDN): • Water supply systems are the lifeline of urban and rural communities. But this system is not easy or cheap to be earn, such a system is costly, and the most costly element in this system is the water distribution network. • A water distribution network (WDN) is comprised of a number of links (mainly pipes) connected together to form loops and/or branches.

  4. 1.1 Water distribution networks (WDN): •  The WDNs should be capable of: • Meeting the demands • Satisfactory the pressure head • The WDNs may be classified as: • Grid(looped) systems • Branching systems • Combination of the two

  5. 1.2 Design of WDNs: • The design of WDNs involves the following: • Determination of pipe diameters • Determination of pump specifications • Determination of reservoir sizeand location • Selection of pipe material

  6. 2Objectives

  7. 2.1 The Objective of the Project: • The main objective of this project is to design the water • distribution network of Qaryut with the aid of EPANET.

  8. 3Study Area

  9. 3.1 Geography and Topography: • Qaryut is located 42 km to north of Jerusalem and 26 km to the south of Nablus. • Administratively, Qaryut is belongs to Nablus governorate it is located at the top of mountain which is elevated 750 m above mean sea level. The area of Qaryut is about 7491 dunnoms. • Topographically, the village is a mountainous area reaching heights of between Nablus and Ramallah

  10. Qaryut

  11. 3.2 The Meaning of Qaryut: • Qaryut is an old Canaanite name, where Qaryut called by that name because it is surrounded by several villages. This name includes two parts: • (QAR): which means villages, the second part, • (YUT): meaning center. • So the meaning of Qaryut is the center of villages.

  12. 3.3 Rainfall:

  13. 3.4 Population:

  14. 3.5 Water Resources: • Qaryut has two springs: • 1. Qaryut spring

  15. 3.5 Water Resources: • 2. Salon spring

  16. 3.5 Water Resources: • 3. Mekorot : • Citizens in Qaryut, get their requirements of water from a filling point provided by Mekorot. Where the water transfer to citizens by tractors

  17. 4Methodology

  18. 5 Questionnaire

  19. 5.1 Background: • The questionnaire is the first step to start this project, it give the opportunity to know some important information that affect the water demand. • The questionnaire covers 50 families. It focused on the issues that affect per capita water consumption, to know the percentage of each factor.

  20. 6 Design Approach

  21. 6.1 Water Supply System For the Southern Villages of Nablus:

  22. 6.1.1 Rujeib well pump :

  23. 6.1.2 Qusra Reservoir:

  24. 6.2 Area Partition (Before Parting):

  25. 6.2 (After Parting):

  26. 6.3 Data Input: • Growth rate (r) = 2.36% • Density of the population = = • Design Period = 25 years • water consumption per capita day = 125 L /C day • Losses: 14% • Total consumption = population * (L / c –day)

  27. 6.3 Data Input: • Max daily demand = 1.8 • h­Lf = 162.5*( )1.852*D-4.87*L • For the pipes I choose it UPVC with (H-WC)=125 • transition link from Qusra reservoir to Talfit and Qaryut has a diameter 6 inch, then branch to 4 inch diameter so I choose the diameter gradually to the end

  28. 7 Results

  29. 7.1 The Velocity inPipes: pipe

  30. 7.2 The Pressure Head for Nodes:

  31. 7.3 The Pressure Head for Nodes (after add a pump): Min

  32. 8 Conclusions

  33. 8.1 Pipes required to WDN of Qaryut: • The WDN includes 132 pipes. I summarize the pipes required in below table • The total cost of the pipes = 323,695 JOD

  34. 8.2 Pump required to WDN of Qaryut: • A pump should be used in order to guarantee that the water can reach all the residents of the village at sufficient pressure (>=20m) • I choose a pump with inflow (30m3/hr), and give a head (34.1 m) to give at least 20m pressure head at nodes to reach all citizens. • The capital cost of this pump is (5350 JOD).

  35. 9 Recommendations

  36. 9.1 Recommendations: • Since Qaryut village is without a WDN, it is highly recommended to quickly construct the WDN for the village. • Springs rehabilitation in order to reduce spring losses and to prevent pollution. This enables the village to take advantage of these resources. • Public awarenesscampaigns should be carried out to encourage the residents of Qaryut to practice water conservation.

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