module 1 and 2 of water supply design by Engr. Farhan arooj

module 1 and 2 of water supply system

1. Design of Water Supply System of a Society Individual Design Project

2. Design of Water Distribution System Water Distribution System Info: Source = Ground water Pump based flow (with storage) for a society Design Methodology: Drawing a layout of the system, i.e. to draw the pipes and nodes Calculation of the base demand , i.e. the average outflow from each node Determination of input parameters i.e. pipe length, dia, elevation, pump head etc. Entering data in the EPAnet Software & analysing the results of the system

3. Design Data No. of Plots= 281 No. of Flats= 3 No. of Apartments= 3 Design Period= 20 years (assumed) Base Year= 202 4 Design Year= 204 4 Population at Design Year (204 3 ): Persons per plot = 10 Persons per flat = 500 Persons per apartment = 700 Commercial Floors = 6 Storey No. of Children in School = 200 Source of water = Ground water

4. Design Data Design Population: Sum [ (persons per plots/apartments/flats) x (number of plots/apartments/flats) ] Design Population = (281 x 10) + (3 x 500) + (3 x 700) Design Population = ____ 6410 ____ persons Estimated Area of Scheme: Area of Scheme = ______________________ m 2 Per Capita Water Consumption: ( lpcd ) Per capita W.C = 200 + 10(Y) where Y = sum of digits of your Roll # (e.g. 22) Per capita W.C = ____ 420 ____ lpcd

5. Design Data Average Design Flow / Total Base Demand based on Population : Avg. Design Flow = (Design Population) x (Per Capita Water Consumption) Avg. Design Flow = _____________ 6410 x 420 _____________ Avg. Design Flow = ______ 2, 692,200 ______ lit/day

6. 1. Drawing a layout of the system

7. 1. Drawing a layout of the system

8. 2. Calculation of Base Demand

9. Nodes Flats Appartments Plots Total Population Base Demand/Average flow # of Flats Population per flat # of Apartments Population per apartment # of plots Population per plot lit/day lit/sec N1 500 700 10 N2 500 700 10 N3 500 700 10 N4 500 700 10 N5 500 700 10 N6 500 700 10 N7 500 700 10 N8 500 700 10 = = = = = = = = = = = = = = = = Total 3  - 3  - 281  - Check (5567) Check Base Demand

10. 1. Drawing a layout of the system N1

11. Nodes Flats Appartments Plots Total Population Base Demand/Average flow # of Flats Population per flat # of Apartments Population per apartment # of plots Population per plot lit/day lit/sec N1 500 700 16 10 160 67200 0.778 N2 500 700 10 N3 500 700 10 N4 500 700 10 N5 500 700 10 N6 500 700 10 N7 500 700 10 N8 500 700 10 = = = = = = = = = = = = = = = = Total 3  - 3  - 281  - Check (5567) Check Base Demand

12. 1. Drawing a layout of the system N1 N3

13. Nodes Flats Appartments Plots Total Population Base Demand/Average flow # of Flats Population per flat # of Apartments Population per apartment # of plots Population per plot lit/day lit/sec N1 500 700 16 10 160 67200 0.778 N2 500 700 10 N3 1 500 700 17 10 670 281400 3.257 N4 500 700 10 N5 500 700 10 N6 500 700 10 N7 500 700 10 N8 500 700 10 = = = = = = = = = = = = = = = = Total 3  - 3  - 281  - Check (5567) Check Base Demand

14. 1. Drawing a layout of the system N1 N3 N7

15. Nodes Flats Appartments Plots Total Population Base Demand/Average flow # of Flats Population per flat # of Apartments Population per apartment # of plots Population per plot lit/day lit/sec N1 500 700 16 10 160 67200 0.778 N2 500 700 10 N3 1 500 700 17 10 670 281400 3.257 N4 500 700 10 N5 500 700 10 N6 500 700 10 N7 500 1 700 13 10 830 348600 4.034 N8 500 700 10 = = = = = = = = = = = = = = = = Total 3  - 3  - 281  - Check (5567) Check Base Demand