Prepared by:---Khalid Nairat-Ghaith Daraghmeh-Mohammed Daraghmeh

Supervisor:--

Dr. Amal Al Hudhud

An – Najah National University

Objective of the Project

To distribute enough quantity water with good quality for all houses in the study area. •Design the water network to satisfy the future population growth.

•Determine the problems in the network such as losses and other problems. •To achieve the affordability of water in the house at any time.

•Solve the high cost problem for using mobilizing tanks transfer

Tasks of project

To achieve the above objectives, the following tasks will be performed data collection, include.

•Demand of each node.•Elevation of each node. •Length and Diameter of each pipe. •Pump and reservoirs Data

Good management between them

Site Investigation

Collecting DataMeithalun municipality

Working with Data AutoCAD map

Consumption

Part Two

Methodology

Meteorological Station

All data taken from Meithalun Meteorological Station

Populations

The population of the Meithalun village by the Central Statistics in year 1997 and 2007 is estimated 5227, 6955 respectively.

•First Step:--

•To calculate the growth rate through the equation:--Pf = 6955 Pp = 5277r = will be calculatedn = 10

Second Step:--

Through the use of the population in year 1997 and 2007, the growth rate of population is equal 2.8%; it’s used this growth rate to calculate the number of population in year 2011 through the year 2007.

Pf = will be calculated

Pp = 5277

r = 2.8%n = 4

As a result, the population in year 2011 is equal 7767

Water Consumption in Meithalun village

Through the Meithalun municipality questionnaire was done in water consumption per person and average individuals in each house results as follows:--

•Daily consumption per capita is equal (90 litter)•Average number of person in each house is equal (7)

In order to verify the amount of consumption and the average number of person has been the work of a questionnaire to a random collection of houses for monthly consumption and the number of person in each house.

verify the amount of consumption 

•Daily consumption per capita is equal (89.87 litter).•Average number of person in each house is equal (6.64).

This includes the correct values, therefore, will be the adoption of the following results:--

•Daily consumption per capita is equal (90 litter)•Average number of person in each house is equal (7)

Analysis of Water Distribution Pipe Network

Three simple methods used to solve pipe network problems are the Hardy Cross method, the linear theory method, and the Newton Raphson method

The Hardy Cross method that involves a series of successive approximations and corrections to flows in individual pipes is the most popular procedure of analysis

Flow in a water pipe network, satisfies two basic principles

1. Flow Continuity Equation2. Energy Equation

Design criteria

1. Gravity feed (use of the reservoir high in the source)

2. Minimum pressure head as we have mentioned previously, according to the Palestinian Water Authority, the permitted range (20-100) meters and the Minimum and maximum velocity are ( 0.3 – 3 ) m/s

3. According to a survey of consumption per capita and a provision for Meithalun municipality, the consumption is equal 90 litter.

4. tion in year 2011 is (7767).

5. The growth rate used for design is equal 2.8%.

1. For analysis criteria, the maximum daily peak factor is equal (1.8), this value describes the rate of change of the daily consumption according to the specification Palestinian.

2. The design period is 25 years.

1.Demand at each node2.Diameter of pipe3.Pressure head at each

node 4.Velocity in the pipe