Epanet Report 3r6n4i

Contents 1. PROJECT DISCRIPTION ...................................................................................................................... 2 2. INTRODUCTION OF SCHEME ...................................................................................................... 2 2.1 Estimated Area Of Scheme ............................................................................................................. 3 3. RELATED THEORY .............................................................................................................................. 3 3.1 Source Of Water ............................................................................................................................... 3 3.2 Water Consumption ........................................................................................................................ 3 3.3 Factors Effect Water Consumption................................................................................................ 3 3.4: Components Of Water Supply System ....................................................................................... 4 3.5 Methods Of Water Distribution ..................................................................................................... 4 3.6 Pressure In Distribution System .................................................................................................... 4 3.7 Hydraulics Of Water Distribution ................................................................................................. 4 4. DESIGN CRITERIA USED IN PROJECT ............................................................................................ 5 4.1 Design Period ................................................................................................................................... 5 4.2 Population Estimation ..................................................................................................................... 5 4.3 Per Capita Consumption:................................................................................................................ 6 5. CALCULATION .................................................................................................................................... 6 5.1 Design of Pump Head .......................................................................................................................... 6 5.2 Storage Tank ..................................................................................................................................... 7 5.3 Pipe Losses ........................................................................................................................................ 7 5.4 Pump Used........................................................................................................................................ 7 6. RESULTS ................................................................................................................................................. 9 6.1 Attachment of Map .......................................................................................................................... 9 6.2: Map Showing Different Parameters At The Nodes And Links ............................................. 11 6.3: Table For Calculation Of Base Demand .................................................................................... 12 7: RECOMMENDAIONS & SUGGESTION ......................................................................................... 16 

Installation of a purification plant at OHT .After some year water to the houses is not

suitable for drinking purpose................................................................................................................. 16

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DESIGN OF WATER SUPPLY SYSTEM Continued global growth has placed increasing demand upon existing water distribution systems. This growth has fueled the increasing need to analyze existing and design new water distribution systems. EPANET is a computer program that performs extended period model of hydraulic and water quality behave or within pressurized pipe networks. Purpose of this assignment is to design a “Water distribution network “for a housing scheme .A network consists of pipes, nodes (pipe junctions), pumps and storage tanks or reservoirs.

1. PROJECT DISCRIPTION We are provided with a map of Future vision housing society located near the Upper Chenab canal. This report gives a detailed description about how to establish a water distribution system for a scheme. First we have added junctions, pipes, reservoir, OHT and pump. As an input, fill the fields for elevation (251) and demand for nodes, and length, diameter, and roughness (C-factor) for links. For the reservoir we have enter the value of Total Head (212). For the Tank add 271 for the elevation & 50 for its diameter. For the pump, we need to assign it a pump curve (head versus Flow relationship). Enter the ID label 1 in the Pump Curve field. We use the pipe in range of 80-150mm which makes the project economical. As an Output we get pressure value for each node which is in between 14-30m .The output file attached at the end report showing all the data.

2. INTRODUCTION OF SCHEME The scheme under studies has following attributes:

LAND USE No of houses No of apartments No of Flats No of parks Schools Grave yard Dispensary

Total Number 281 3 3 2 1 1 1

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2.1 Estimated Area Of Scheme Total area of scheme is calculated by using the given scale: 1cm=10m Total area of scheme =19 acre

3. RELATED THEORY 3.1 Source Of Water There are two main source of water 1) Underground 2) Surface. In our case we used underground water source. 3.2 Water Consumption Water consumption means amount of water consumed per day. Or Per capita consumption is the amount of water use by a person per day. Average value is 150-550 lpcd. Water consumption unit vary with its use. 3.3 Factors Effect Water Consumption These are following factors which effect the water consumption: i.

Climate

ii.

Standard of Living

iii.

Quality of water

iv.

Metering

v.

Size of City

vi.

Pressure in system

vii.

Type of Water

viii.

Cost of Water

ix.

Level of Service

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3.4: Components Of Water Supply System

Collection

Purification

Transmission

Distribuition

3.5 Methods of Water Distribution Purpose of distribution system is to deliver water to consumer with appropriate quality, quantity and pressure. Depending upon the level of source, topography of the area and other conditions water may be forced into distribution system by the following ways: 1. Gravity It is suitable when the source of supply is at sufficient height. 2. Direct Pumping Water is directly pumped into the main distribution network without storage. It is also known as direct pumping. 3. Pumping with storage In this system water is pumped and stored into elevated storage tank .which further supply water to the main distribution network by action of gravity. 3.6 Pressure In Distribution System Pressure in distribution system should be in range of 14 to 30 m .If pressure is less then 14m ,contaminates from nearby ditches can be drawn into the water system. 3.7 Hydraulics Of Water Distribution Flow unit is LPS Head loss formula H-W=HL=10.68*(Q/C) 1.85*L/d4.87 Q= Average design flow in m3/sec C=Roughness coefficient (For GI pipe) 4

L=Length of pipe in m D=Diameter of pipe in m Q=Av A=Area of pipe V=velocity

4. DESIGN CRITERIA USED IN PROJECT 4.1 Design Period Design period mean the number of future years up to which the present facility would meet the demand. Selection of an appropriate Design period for a particular facility depends upon following factors. 

Length or life of structure



Ease of extension First cost Rate of interest (design period is shorter)

   

Economy of scale Lead time By keeping in view of these factors design period in given case study is 20 years. 4.2 Population Estimation In the given case we assume that total 8 number of people living per house. Total number of population per Flat is 500 & 700 people living per Apartment. Total estimation population for next 20 years. 

Population of plots=total number of plots*number of people per house = (8*281)=2248



Population of apartment=total number of apartments*number of people reside per apt. = (700*3) =2100

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

Population of flat =total number of flats * number of people reside per flat= (500*3) =1500



Total est. population =2248+1500+2100=5848

4.3 Per Capita Consumption: Per capita water consumption assumed= (250+17) =267 Design flow=5848*267=1561416 lit/day (18.07 lit/sec)

5. CALCULATION 5.1 Design of Pump Head Formula Design Head =Depth of Water +Losses in pipe +safe head+ Draw down of tube well +Difference in elevation between O.H.T & Reservoir + Height of O.H.T Given values: Draw down of tube well =30’=30*0.304=9.144 m Difference in elevation between O.H.T & Reservoir = 0 (assumed) Height of O.H.T =20m Safe head=10’=10*0.304=3.048m Depth of water=100’=30.4 Losses in pipe =? Now, we find losses in the pipe from reservoir to O.H.T Formula used: HL=10.68(Q/C) ^1.85*L/d^4.87 Q=18.07 lit/sec =18.07/1000=0.01807 m3/sec Sum of the length of all the pipes =1915m Roughness coefficient C=120 6

Diameter=300mm=0.3m Solution=HL=10.68*(0.01807/120) 1.85*1915/ (0.3) 4.87=0.6111m Design head for pump =30.1+9.144+0.6111+3.04+20=62.8951m 5.2 Storage Tank Storage tank is design to meet the maximum daily demand

5.3 Pipe Losses 

HL=10.68*(Q/C) 1.85*L/d4.87

Total losses =0.6111m 

Q=Av

5.4 Pump Used MB series of CG Centrifugal Monoset Pumps are used .Pumps consist of dynamically balanced rotors and impellers which ensure vibration free operation and enhance life. Features:      

Uni-casing construction Separate base plate and coupling / coupling guard not required Flat performance curves at high delivery rates, to prevent motor overloading even during prolonged use Good Suction capacities at both low and high delivery rates Suitable for horizontal mounting with top central discharge Reduced numbers of parts with space saving innovative construction

Standard Specifications:     

Range: 3ph - 0.75 kW to 22.5 kW (1HP to 30.0 HP) Supply: 415 V, 50Hz, 3 phase AC Pipe size: 40 x 32 mm to 100 x 100 mm Total head: Upto 75 Meters Capacity: Upto 2140 LPM

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   

 

Liquid: Clear Water Rotation: Clockwise as viewed from motor end Electric Motor TEFC, SCR, 2 or 4 Pole (3000 or 1500 RPM Syn. Speed) Electric Motor for 415V, 50Hz, 3 phase AC supply Applications: Domestic water supply Public water supply schemes

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6. RESULTS 6.1 Attachment of Map

9

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6.2: Map Showing Different Parameters At The Nodes And Links

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6.3: Table For Calculation Of Base Demand

TABLE FOR CALCULATION OF NODAL DEMAND NODE No.

Plots

Flats

Apartments

Tot pop.

Average Demand( l/d)

Av. demand(l/s)

Max.deman d(l/s)

(Tot.pop *(250*17 )*

(Aveargede mand l/d/86400)

(Average demand *1.5)

Peak Hour demand( l/s) (Average demand *2.25)

Total Pop.

N o

Pop.

No

Pop.

N1

N. of plo ts 0

0

0

0

1

700

700

186900

2.16

3.245

4.87

N2

35

280

0

0

0

0

280

74760

0.87

1.298

1.95

N3

0

0

0

0

1

700

700

186900

2.16

3.245

4.87

N4

18

144

0

0

0

0

144

38448

0.45

0.668

1.00

N5

15

120

0

0

0

0

120

32040

0.37

0.556

0.83

N6

11

88

0

0

0

0

88

23496

0.27

0.408

0.61

N7

11

88

0

0

0

0

88

23496

0.27

0.408

0.61

N8

11

88

0

0

0

0

88

23496

0.27

0.408

0.61

N9

13

104

0

0

0

0

104

27768

0.32

0.482

0.72

N10

13

104

250

0

0

354

94518

1.09

1.641

2.46

N11

17

136

0. 5 0

0

0

0

136

36312

0.42

0.630

0.95

N12

15

120

250

0

0

370

98790

1.14

1.715

2.57

N13

15

120

0. 5 0

0

0

0

120

32040

0.37

0.556

0.83

N14

0

0

1

500

0

0

500

133500

1.55

2.318

3.48

N15

27

216

0

0

0

0

216

57672

0.67

1.001

1.50

N16

0

0

1

500

0

0

500

133500

1.55

2.318

3.48

N17

23

184

0

0

0

0

184

49128

0.57

0.853

1.28

N18

11

88

0

0

0

0

88

23496

0.27

0.408

0.61

N19

14

112

0

0

300

412

110004

1.27

1.910

2.86

N20

0

0

0

0

400

400

106800

1.24

1.854

2.78

N21

10

80

0

0

AP(3 ) AP(3 ) 0

0

80

21360

0.25

0.371

0.56

N22

22

176

0

0

0

0

176

46992

0.54

0.816

1.22

TOTAL

28 1

2248

3

1500

3

2100

5848

1561416

18.07

27.108

40.66

lit/d ay

(18.0 7 Lit/S ec)

*Avera ge design flow =

5848*(250 +17)

15614 16

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6.4: Representation Of Results in table form output files (EPA.NET) Page 1 10/31/2013 6:36:05 PM ********************************************************************** * E P A N E T * * Hydraulic and Water Quality * * Analysis for Pipe Networks * * Version 2.0 * ********************************************************************** Input File: epanet.net

Link - Node Table: ---------------------------------------------------------------------Link Start End Length Diameter ID Node Node m mm ---------------------------------------------------------------------PI1 JU1 JU2 164 80 PI2 JU2 JU3 61 80 PI3 JU3 JU4 86 100 PI4 JU4 JU5 22 150 PI5 JU5 JU6 35 100 PI6 JU6 JU7 100 80 PI7 JU6 JU8 40 100 PI8 JU8 JU9 100 80 PI9 JU8 JU10 35 100 PI10 JU10 JU11 100 80 PI11 JU10 JU12 40 80 PI12 JU12 JU13 110 100 PI13 JU13 JU5 40 150 PI16 JU13 JU15 35 150 PI18 JU15 JU14 110 100 PI19 JU14 JU12 35 80 PI20 JU14 JU16 47 80 PI22 JU16 JU17 110 100 PI23 JU17 JU15 47 150 PI24 JU16 JU18 53 80 PI25 JU17 JU19 55 150 PI26 JU19 JU18 110 100 PI27 JU19 JU20 43 150 PI28 JU20 JU21 40 100 PI29 JU22 JU13 40 100 PI30 JU22 JU21 180 100 PI31 JU22 JU2 58 100 PI32 JU23 TK1 18 300 PI33 TK1 JU15 24 300 PI34 JU23 JU15 20 300 PU1 RS1 JU23 #N/A #N/A Pump

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Page 2 Energy Usage: ---------------------------------------------------------------------Usage Avg. Kw-hr Avg. Peak Cost Pump Factor Effic. /m3 Kw Kw /day ---------------------------------------------------------------------PU1 100.00 60.00 0.31 16.95 16.95 7324.15 ---------------------------------------------------------------------Demand Charge: 0.00 Total Cost: 7324.15 Node Results: ---------------------------------------------------------------------Node Demand Head Pressure Quality ID LPS m m ---------------------------------------------------------------------JU1 2.16 280.10 29.10 0.00 JU2 0.86 280.72 29.72 0.00 JU3 2.16 280.73 29.73 0.00 JU4 0.44 280.87 29.87 0.00 JU5 0.37 280.87 29.87 0.00 JU6 0.27 280.84 29.84 0.00 JU7 0.27 280.84 29.84 0.00 JU8 0.27 280.83 29.83 0.00 JU9 0.32 280.82 29.82 0.00 JU10 1.09 280.82 29.82 0.00 JU11 0.42 280.80 29.80 0.00 JU12 1.14 280.85 29.85 0.00 JU13 0.37 280.91 29.91 0.00 JU15 0.66 281.00 30.00 0.00 JU14 1.54 280.87 29.87 0.00 JU16 1.54 280.88 29.88 0.00 JU17 0.56 280.94 29.94 0.00 JU18 0.27 280.89 29.89 0.00 JU19 1.27 280.90 29.90 0.00 JU20 1.23 280.90 29.90 0.00 JU21 0.24 280.88 29.88 0.00 JU22 0.54 280.84 29.84 0.00 JU23 0.00 281.00 30.00 0.00 RS1 -15.04 212.00 0.00 0.00 Reservoir TK1 -2.95 281.00 10.00 0.00 Tank Link Results: ---------------------------------------------------------------------Link Flow VelocityUnit Headloss Status ID LPS m/s m/km ---------------------------------------------------------------------PI1 -2.16 0.43 3.84 Open PI2 -0.27 0.05 0.08 Open PI3 -2.43 0.31 1.61 Open PI4 -2.87 0.16 0.30 Open PI5 1.74 0.22 0.86 Open PI6 0.27 0.05 0.08 Open

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Page 3 Link Results: (continued) ---------------------------------------------------------------------Link Flow Velocity Unit Head loss Status ID LPS m/s m/km ---------------------------------------------------------------------PI7 1.20 0.15 0.43 Open PI8 0.32 0.06 0.11 Open PI9 0.61 0.08 0.12 Open PI10 0.42 0.08 0.18 Open PI11 -0.90 0.18 0.77 Open PI12 -1.29 0.16 0.50 Open PI13 4.97 0.28 0.84 Open PI16 -9.10 0.51 2.58 Open PI18 2.02 0.26 1.14 Open PI19 0.75 0.15 0.55 Open PI20 -0.27 0.05 0.08 Open PI22 -1.38 0.18 0.57 Open PI23 -6.21 0.35 1.27 Open PI24 -0.43 0.09 0.19 Open PI25 4.26 0.24 0.63 Open PI26 0.70 0.09 0.16 Open PI27 2.30 0.13 0.20 Open PI28 1.07 0.14 0.35 Open PI29 -2.47 0.31 1.65 Open PI30 -0.83 0.11 0.22 Open PI31 2.75 0.35 2.02 Open PI32 4.94 0.07 0.03 Open PI33 7.89 0.11 0.07 Open PI34 10.10 0.14 0.11 Open PU1 15.04 0.00 -69.00 Open Pump

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7: RECOMMENDAIONS & SUGGESTION 

Installation of a purification plant at OHT .After some year water to the houses is not suitable for drinking purpose.



To check the decrease in pressure because of the forceful.



Analysis of further requirement of strengthening of the network i.e. distribution system for any specific land use or any area.



The study of revenue generation by metering the entire consumer.

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REFERENCES 

http://www.indiamart.com/precisionengineers/water-pumps.html



http://www.academia.edu/1860889/WATER_DEMAND_ANALYSIS_OF_MUN ICIPAL_WATER_SUPPLY_USING_EPANET_SOFTWARE

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