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WATER SUPPLY Design Approach And Methodologies Ir. Abdul Aziz Abas P.Eng, C.PEng, Int.PE

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Page 1: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYDesign Approach And Methodologies

Ir. Abdul Aziz Abas P.Eng, C.PEng, Int.PE

Page 2: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYPREFACE

• As a module of the Integrated Design Project course for the Bachelor of

Civil Engineering programme, Faculty of Civil Engineering, UiTM, Shah

Alam

This program will provide basic overview of all aspects of Water Supplydesign approach and methodologies

Preparation for life…

2Mar 2010

Page 3: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYPREFACE

• UNDERSTANDING the subject of Civil Engineering in wider perspective,

inter-relation with other subjects influencing the performance of Engineering

works and challenges.

• ACQUIRRING cutting edge practical design knowledge & skills that last

forever in the world of ever-changing infrastructural engineering.

• DEVELOPING your engineering knowledge significantly and permanently.

• PROVIDING your dashing factor (distinguish factor) for better chance of

employment upon graduation.

• EXPAND your employment versatility in an ever-changing marketplace.

Benefit

3

• EXPAND your employment versatility in an ever-changing marketplace.

• WINNING at the office and in daily job with the power of practical skill.

• ADVANCING your career as an Engineer.

• GAINING LEVERAGE by demonstrating knowledge of engineering in a

multi-disciplinary context.

Mar 2010

Page 4: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYCONTENTS

1. Introduction

2. Hydrology

3. Design Guidelines

4. Water Supply Planning

5. Raw Water Intake

6. Water Treatment

Contents4Mar 2010

7. Water Transmission

8. Water Distribution

9. Water Storage

10. Water Pumping

11. Water Reticulation

12. Typical Drawings

Page 5: Ui T M  Water  Supply ( Mar2010)

5

1 INTRODUCTION

Page 6: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYINTRODUCTION

Definition

Water supply is the process of self-provision or provision by third parties in

the water industry, commonly a public utility, of water resources of various

qualities to different users

Water is a ubiquitous chemical substance that is composed of hydrogen

and oxygen and is vital for all known forms of life

1

6Mar 2010

Water Supply System is facilities for the collection, treatment, storage,

and distribution of water

qualities to different users

Page 7: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYINTRODUCTION

Overview of World Water Supply1

7

Source: UNDP. Data as of 2006

7Mar 2010

Page 8: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYINTRODUCTION

1 Malaysian Water Authority

SURUHANJAYA PERKHIDMATAN AIR NEGARA (SPAN)National Water Services Commission

SPAN’s Representatives

WSIA 2006PENGURUSAN ASET AIR BHD (PAAB)

Water Asset Management Company (WAMCO)

MINISTRY OF FINANCE (MOF)

Regulator

Facilities Licensee

KEMENTERIAN TENAGA, TEKNOLOGI HIJAU DAN AIR (KeTTHA)Ministry of Power, Green Technology And Water

888Mar 2010

KEDAH P.PINANG PERAK SELANGOR PAHANG

N.SEMBILAN MELAKA JOHOR K’TAN

PERLIS

T’GANU

JKR SADA PBA LAP SYABAS JBA

SATU SAINS SAMB SAJ AK

SEWERAGE SERVICES

IWK

ALL STATES

WATER SUPPLY SERVICES

Design Guidelines

WSIA provides the legal framework required for the regulation of the water and sewerage service industry

SPAN as the technical and economic regulator and set out the function and powers of SPAN

PAAB Water asset owner

Service Licensee

Page 9: Ui T M  Water  Supply ( Mar2010)

Typical Water Supply System

WATER SUPPLYINTRODUCTION

1

9Mar 2010

Page 10: Ui T M  Water  Supply ( Mar2010)

10

2 HYDROLOGY

Page 11: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYHYDROLOGY

2

11Hydrological Cycle

11Mar 2010

Page 12: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYHYDROLOGY

1Suitable raw water source

(low contamination)Non-Suitable raw water source

(high contamination)

12Concept of Raw Water Source

12Mar 2010

Page 13: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYHYDROLOGY

1

Raw Water Intake

1313Water Shed (Catchment Area)13Mar 2010

Impounding Impounding Impounding Impounding reservoirreservoirreservoirreservoir

Page 14: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYHYDROLOGY

1 Impounding Reservoir

141414Mar 2010

Page 15: Ui T M  Water  Supply ( Mar2010)

Mar 2010 15

3 Design Guidelines

Page 16: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYDESIGN GUIDELINES

3

Type of Water Demand Demand Criteria

HousingHotelCommercialIndustrialShips Supply*Port Area (Incl. ships supply)*

1.6 CuM/unit/day1.5 CuM/room/day6.0 CuM/Acre/day20.2 CuM/Acre/day

160 CuM/Ship6.0 CuM/Acre/day

Water Demand Criteria

Typical Water Demand Guidelines

161616Mar 2010

Page 17: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYDESIGN GUIDELINES

3

Parameter Symbol Benchmark

Sulphate SO4 250 mg/l

Hardness CaCO3 500 mg/l

Nitrate NO3 10 mg/l

Coliform -Must not be detected in any 100 ml

sample

Manganese Mn 0.1 mg/l

Chromium Cr 0.05 mg/l

Zinc Zn 3 mg/l

Arsenic As 0.01 mg/l

National Guidelines for Raw Drinking Water Quality (Revised December 2000)

Contaminant Secondary Standard

Aluminum 0.05 to 0.2 mg/LChloride 250 mg/LColor 15 (color units)Copper 1.0 mg/LCorrosivity noncorrosiveFluoride 2.0 mg/LFoaming Agents 0.5 mg/LIron 0.3 mg/LManganese 0.05 mg/L

Secondary Drinking Water Standards

Water Quality Guidelines

171717Mar 2010

Arsenic As 0.01 mg/l

Selenium Se 0.01 mg/l

Chloride Cl 250 mg/l

Phenolics - 0.002 mg/l

TDS - 1000 mg/l

Iron Fe 0.3 mg/l

Copper Cu 1.0 mg/l

Lead Pb 0.01 mg/l

Cadmium Cd 0.003 mg/l

Mercury Hg 0.001 mg/l

Source : Ministry of Health, Malaysia

Manganese 0.05 mg/LOdor 3 threshold odor numberpH 6.5-8.5Silver 0.10 mg/LSulfate 250 mg/LTotal Dissolved Oxygen

500 mg/L

Zinc 5 mg/L

Source: EPA Standard

Note: US Environmental Protection Agency (EPA)

guidelines

Page 18: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYDESIGN GUIDELINES

3• Water Distribution

• Transmission Pipeline

• Water Storage

Max Pressure Zones ≤ 40 m (S’gor)

Max Pressure Zones ≤ 60 m (JKR)

Residual Pressure ≥ 1 bar

Velocity ≤ 1.0 m/sec

Max Test Pressure = 15 bars

Minimum ; 1-day

Maximum ; 3-day

Suction Tank ; 1/3 x Demand

Typical Design Criteria

181818Mar 2010

• Pumping System

• Reticulation Pipelines

• Minimum pressure in a system

Suction Tank ; 1/3 x Demand

Service Tank ; 2/3 x Demand

Velocity ≤ 1.0 m/sec

Max head ; Pump curves

Head loss ≤ 2m / km

Velocity ≤ 0.6 m/sec

Residual Pressure ≥ 7.5m above HSL

Hydrants Pressure ≥ 1.0 bar

5 psi (0.35 bar)

Page 19: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYDESIGN GUIDELINES

3

Balancing

Reservoir Max Pressure Zone = 40m

Pressure Zone ≤ 40m

Rp ≥10m

Rp ≈ 3mRp ≈ 3m

TREATMENT STAGE

DISTRIBUTION STAGE

CONSUMPTION STAGE

Typical Water Supply System

19

19Mar 2010

P

P

Intake

Treatment Work

Break

Tank

Suction

Tank

Service

Tank

Service area

Rp ≥7.5m

Rp ≥7.5m

Rp ≥10m

Rp ≥10m

Rp ≈ 3m

Hydrants

RETICULATION PIPES

PUMPINGMAINTRANSMISSION PIPELINE

TRANS.PIPELINE(Inter-resv)

Velocity ≤0.6m/sVelocity ≤0.6m/s

Velocity ≤2.5m/s

Velocity ≤1m/s

Velocity ≤1m/s

Page 20: Ui T M  Water  Supply ( Mar2010)

Mar 2010 21

4 Water Supply Planning

Page 21: Ui T M  Water  Supply ( Mar2010)

Development Masterplan

WATER SUPPLYWATER SUPPLY PLANNING

4

22Mar 2010

Page 22: Ui T M  Water  Supply ( Mar2010)

Ultimate Water Demands

WATER SUPPLYWATER SUPPLY PLANNING

4LanduseLanduseLanduseLanduse

23Mar 2010

Ultimate Ultimate Ultimate Ultimate projected projected projected projected Demand Demand Demand Demand year 2040year 2040year 2040year 2040

Page 23: Ui T M  Water  Supply ( Mar2010)

Non Revenue WaterHigh NRW rate @ 42%, Pahang State 37% - 70% Connection leak

- 20% Pipe burst

- 10% Others

WATER SUPPLYWATER SUPPLY PLANNING

4

Average NRW Asian Countries = 30%

Target = 25%

Average (Developed Countries+ Asean) = 23%

24Mar 2010

Page 24: Ui T M  Water  Supply ( Mar2010)

Water Demands Projection

WATER SUPPLYWATER SUPPLY PLANNING

4Landuse

2008

(CuM/day)

2010

(CuM/day)

2015

(CuM/day)

2020

(CuM/day)

2025

(CuM/day)

2030

(CuM/day)

2035

(CuM/day)

2040

(CuM/day)

Existing Kuantan Port Area 5,968 5,968 5,968 5,968 5,968 5,968 5,968 5,968

Proposed Extension Port Area** 0 109 380 930 1,555 2,180 3,230 4,280

Industry (Existing) 48,662 48,662 48,662 48,662 48,662 48,662 48,662 48,662

Industry (Proposed) 0 2,885 10,096 19,974 23,386 26,797 36,905 47,013

Very Heavy Industry (Iron Steel,

Bio-fuel, POIC, Petchem, Lynas)0 10,877 38,071 101,372 118,224 135,077 148,142 161,206

Tourism Zone 0 433 1,516 1,516 1,516 1,516 1,516 1,516

Commercial & Nursery 0 213 745 1,091 1,296 1,501 1,733 1,966

25Mar 2010

Commercial & Nursery 0 213 745 1,091 1,296 1,501 1,733 1,966

Residential 2,831 3,259 17,383 27,803 37,816 47,828 61,587 75,347

Mixed use 0 19 65 151 295 439 542 644

School & Institutional & Logistic

Park1,440 2,295 4,432 5,022 5,227 5,432 6,154 6,876

Golf course 0 0 0 0 0 25 50

Railway Station / Transit Oriented

Dev (TOD)0 0 0 0 69 138 138 138

NRW %# 42.00% 40.00% 35.00% 30.00% 25.00% 25.00% 25.00% 25.00%

NRW (CuM/day) 24,738 29,887 44,561 63,746 61,003 68,885 78,650 88,415

TOTAL (CuM/day) 83,639 104,605 171,877 276,234 305,016 344,423 393,250 442,077

TOTAL (Million Gallons/day)# 19 24 39 61 67 76 87 98

Projected Water Demands

Page 25: Ui T M  Water  Supply ( Mar2010)

Water Demands

WATER SUPPLYWATER SUPPLY PLANNING

4

EstablishedEstablishedEstablishedEstablished

26Mar 2010Projected Water Demands

Ultimate Ultimate Ultimate Ultimate projected projected projected projected DemandDemandDemandDemand

EstablishedEstablishedEstablishedEstablishedDemandDemandDemandDemand

Page 26: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Regional Context4

PROJECTSITE

WATER SUPPLY PLANNING

IMPOUNDINGRESERVOIR

27Mar 2010

Topographical Map

Kuantan

Page 27: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Regional Context

Cereh Dam

4

PROJECTSITE

WATER SUPPLY PLANNING

28Mar 2010

Terrain Map

Kuantan

98 MGD

Page 28: Ui T M  Water  Supply ( Mar2010)

5 RAW WATER INTAKE

Page 29: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Cereh Dam

5Cereh Dam

Sg. Kuantan Water Catchment Area

PROJECTSITE

RAW WATER ABSTRACTION

31Mar 2010

Semambu Treatment Work

Sg. Kuantan

15km

10km

Kuantan

Kg. Kobat Baru Water Intake

Page 30: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Raw Water Intake5RAW WATER ABSTRACTION

Intake structure

Wier

32Mar 2010

Q abstraction = Ultimate Demand + Plant Use

Wier

By-pass

Page 31: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Raw Water Intake5RAW WATER ABSTRACTION

Intake structure

gate

Platform Level = 100 years flood level

Intake station

Raw Water Transmission pipelineTo WTP

Q abstraction

Overflow

Headwork Bridge

33Mar 2010

Q abstraction = Ultimate Demand + Plant Use

Suction level

Page 32: Ui T M  Water  Supply ( Mar2010)

6 WATER TREATMENT

Page 33: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Cereh Dam

6Cereh Dam

Sg. Kuantan Water Catchment Area

PROJECTSITE

WATER TREATMENT

35Mar 2010

Semambu Treatment Work

Sg. Kuantan

15km

10km

Kuantan

Kg. Kobat Baru Water Intake

Page 34: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Typical Water Treatment System

WATER TREATMENT

6

Aerator

36

36Mar 2010

Page 35: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER TREATMENT

6 Water Treatment Plant

Aerator

1

2

3

4

4

37Mar 2010

123

4

5

5

Page 36: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER TREATMENT

6 Water Treatment Plant

Aerator

1

2

3

4

4

Supply of potable water

38Mar 2010

123

4

5

5

Incoming raw water

Page 37: Ui T M  Water  Supply ( Mar2010)

7 WATER TRANSMISSION

Page 38: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

7WATER TRANSMISSION

Source pointSource pointSource pointSource point

Ground levelGround levelGround levelGround level

GL 60m

Gravity Flow

PROJECTSITE

GL 37mCh.15000m

40Mar 2010

Supply pointSupply pointSupply pointSupply point

Transmission Transmission Transmission Transmission pipelinepipelinepipelinepipeline

Ground levelGround levelGround levelGround level

Longitudinal ProfileCh 0.00m Ch 15000.00m

GL 37mSemambu

Treatment Work

15km

Kuantan

Transmission Transmission Transmission Transmission pipelinepipelinepipelinepipeline

GL 60mCh.0m

Page 39: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

7WATER TRANSMISSION

• Ultimate Demand (Q) = 98.0CuM/day

• Peak factor f = 1.2

• Total pipe length (L) = 15km

• Consider minor losses = 20%

• Bottom Water Level @ TW (B) = 60.0m ODL

• Top Water Level @ Project Site (T) = 40.0m ODL

• Required Residual Pressure (Hr) = 10m

• Design transmission period (t) = 20 hours / 24 hours

Thus

• Design Flow, Qd = Q * f / t

• Permissible Head Loss, HL = (B –T + Hr) / (L * 1.2)

Source pointSource pointSource pointSource point

Ground levelGround levelGround levelGround level

GL 60m

Gravity Flow

41Mar 2010

• Permissible Head Loss, HL = (B –T + Hr) / (L * 1.2)

• Roughness Coefficient, C = 100

Hence,Using Hazen-William Formula

• HL = 10.6*Qd^1.85

C^1.85*D^5.015

• Adopt Diameter of pipes, D = 1.8m dia• Recalculate Velocity, V = 0.64 m/sec

Supply pointSupply pointSupply pointSupply point

Transmission Transmission Transmission Transmission pipelinepipelinepipelinepipeline

Ground levelGround levelGround levelGround level

Longitudinal ProfileCh 0.00m Ch 15000.00m

GL 37m

Page 40: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

7WATER TRANSMISSION

42Mar 2010

Page 41: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

7WATER TRANSMISSION

43Mar 2010

Page 42: Ui T M  Water  Supply ( Mar2010)

8 WATER DISTRIBUTION

Page 43: Ui T M  Water  Supply ( Mar2010)

3

5

6

WATER SUPPLYWATER DISTRIBUTION

8 Water Supply Zones

� Suit development phasing

� Reliable distribution system

� Construction cost effective

� Ease of maintenance

1

2

4

45Mar 2010

� Control of NRW

Page 44: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER DISTRIBUTION

8 Hydraulics & Service

Coverage Consideration

Residual

PressureResidual

Pressure Residual

Pressure

Balancing Tank

46Mar 2010 46Mar 2010

Supply Zone 1 Supply Zone 2 Supply Zone 3

Service coverage Service coverage Service coverage

Page 45: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER DISTRIBUTION

8 Centralised Service Tank &

Pressure Analysis

47Mar 2010

Page 46: Ui T M  Water  Supply ( Mar2010)

To Cherating

(future)

Tim

ur

R5

R7

WATER SUPPLYWATER DISTRIBUTION

8 Main Distribution Pipes Network

5

To Kuala Lumpur

R2

R8

R4

R1

R3

Storage Tank

LEGEND

Distribution Pipes Network

From Treatment

Plant

R9

48Mar 2010

Balancing Tank

Transmission pipeline

Page 47: Ui T M  Water  Supply ( Mar2010)

9 WATER STORAGE

Page 48: Ui T M  Water  Supply ( Mar2010)

Landuse2008

(CuM/day)

2010

(CuM/day)

2015

(CuM/day)

2020

(CuM/day)

2025

(CuM/day)

2030

(CuM/day)

2035

(CuM/day)

2040

(CuM/day)

Existing Kuantan Port Area 5,968 5,968 5,968 5,968 5,968 5,968 5,968 5,968

Proposed Extension Port Area** 0 109 380 930 1,555 2,180 3,230 4,280

Industry (Existing) 48,662 48,662 48,662 48,662 48,662 48,662 48,662 48,662

Industry (Proposed) 0 2,885 10,096 19,974 23,386 26,797 36,905 47,013

Very Heavy Industry (Iron Steel,

Bio-fuel, POIC, Petchem, Lynas)0 10,877 38,071 101,372 118,224 135,077 148,142 161,206

Tourism Zone 0 433 1,516 1,516 1,516 1,516 1,516 1,516

Commercial & Nursery 0 213 745 1,091 1,296 1,501 1,733 1,966

WATER SUPPLYWATER STORAGE

9 Water Storage Demands

(Without NRW)

Commercial & Nursery 0 213 745 1,091 1,296 1,501 1,733 1,966

Residential 2,831 3,259 17,383 27,803 37,816 47,828 61,587 75,347

Mixed use 0 19 65 151 295 439 542 644

School & Institutional & Logistic

Park1,440 2,295 4,432 5,022 5,227 5,432 6,154 6,876

Golf course 0 0 0 0 0 25 50

Railway Station / Transit Oriented

Dev (TOD)0 0 0 0 69 138 138 138

NRW %# 42.00% 40.00% 35.00% 30.00% 25.00% 25.00% 25.00% 25.00%

NRW (CuM/day) 24,738 29,887 44,561 63,746 61,003 68,885 78,650 88,415

TOTAL (CuM/day) 83,639 104,605 171,877 276,234 305,016 344,423 393,250 442,077

TOTAL (Million Gallons/day)# 19 24 39 61 67 76 87 98

50Mar 2010

Page 49: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER STORAGE

9 Water Storage Demands

Ultimate Ultimate Ultimate Ultimate

51Mar 2010 51

Ultimate Ultimate Ultimate Ultimate projected projected projected projected Storage Storage Storage Storage DemandDemandDemandDemand

EstablishedEstablishedEstablishedEstablishedStorageStorageStorageStorageDemandDemandDemandDemand

Page 50: Ui T M  Water  Supply ( Mar2010)

To Cherating

(future)

Tim

ur

R5

R7

WATER SUPPLYWATER STORAGE

9 Distribution of Storage Tanks

5

R1 + R2 + R3 + …………. + R9 = 1 Day Storage

Mandatory requirement

To Kuala Lumpur

R2

R8

R4

R1

R3

Proposed Storage Tank

LEGEND

From Treatment

Plant

R9

52Mar 2010

Balancing Tank

Page 51: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER STORAGE

9 Mass-balance Analysis

Aim

To establish a balance flow system

To determine

1. Suction Tank Size

2. Elevated Tank Size

Q in = Q outQ Demand

Q in Volume in

Q out Volume out

Qp Volume Pumping

Vt

53Mar 2010

P

2. Elevated Tank Size

3. Transmission (incoming) flow period

4. Transmission pipeline size

Q in

Q out Vs Q p

Vs = 1/3*Q Vt = 2/3*Q

Page 52: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER STORAGE

9 Typical Water Storage Structures

54Mar 2010 54

Page 53: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER STORAGE

9 Typical Water Storage Application

55Mar 2010 55

Page 54: Ui T M  Water  Supply ( Mar2010)

10 WATER PUMPING

Page 55: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER PUMPING

10 Purpose

Water have two main purposes:

• Transfer of liquid from one place to another place

• Circulate liquid around a system

57Mar 2010 57

Page 56: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER PUMPING

10 Purpose

ResidualResidualResidualResidualPressurePressurePressurePressure

58Mar 2010 58

Pressure boosterPressure boosterPressure boosterPressure booster Vacuum pointVacuum pointVacuum pointVacuum point

ResidualResidualResidualResidualPressurePressurePressurePressure

Page 57: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER PUMPING

9

HT Total Pumping Head

hv Vapour Head

hf Friction Head

hp Pressure Head

h Static Head

hsafety Safety Head

Hd Total Discharge

Positive Suction Head

Arrangement

hpd = Atm. pressure

hfd

hvd

hsafety

HT = Hd - Hs

Water Pumping Analysis

59Mar 2010P

Q in

Q out

Hd Total Discharge

Hs Total Suction

hd

hs

hps = Atm. Pres.

hvs

Suction TankElevated Service Tank

hfs

Hd

Hs

Page 58: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER PUMPING

9

HT Total Pumping Head

hv Vapour Head

hf Friction Head

hp Pressure Head

h Static Head

hsafety Safety Head

Hd Total Discharge

Negative Suction Head

Arrangement

hpd = Atm. pressure

hfd

hvd

hsafety

HT = Hd + Hs

Water Pumping Analysis

60Mar 2010

P

Q inQ out

Hd Total Discharge

Hs Total Suction

hd

hs

hps = Atm. Pressure

hvs

Suction Tank Elevated Service Tank

hfs

Hd

Hs

Page 59: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER PUMPING

10 Water Pumping Analysis

61Mar 2010 61

Pump Operating Point

Page 60: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER PUMPING

10 Water Pumping Analysis

HT

63Mar 2010 63

Qp

Typical Pump Curve & Selection of pump

Page 61: Ui T M  Water  Supply ( Mar2010)

11 WATER RETICULATION

Page 62: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER RETICULATION

11 Water Supply Zone 5

3

4

5Draw off

Node

Reticulation pipesIn loop system

Draw off

R5

66Mar 2010

R5

1

2

6

7

8

9

10

11

12

Service Tank

Reticulation pipesIn loop system

Draw off

Page 63: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Zone 5 - Water Demand Calculation

WATER RETICULATION

11Zone 5 – Ultimate Demand (Year 2040)

67Mar 2010

Page 64: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Critical Scenario Consideration

WATER RETICULATION

11Dominant Flow

Case 1 (Fire Flow) : Average Flow + Fire Flow

Case 2 (Peak Flow) : Average Flow x Peak Factor

Consider Dominant Flow for water reticulation analysis

Thus,

68Mar 2010

Thus,

Case 1 : (19,175.50 CuM/day x 1000/24/3600 ) + 2 (22.5 lit/sec) = 267 lit/sec

Case 2 : (19,175.50 CuM/day x 1000/24/3600) x 2.5 = 555 lit/sec

Hence,

Peak Flow condition is dominant

Page 65: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYWATER RETICULATION

113

4

5

9.5

8.5

6.5

6.0 Formation Ground Level 6.0m ODL

13.0

13.0

13.0

13.0 Highest Supply Level 13.0m ODL

8.0 lit/sec

180.0 lit/sec

99.0 lit/sec

1

1000

Pipe No 1, Length 1000m

8 Node 8

BWL 32.0 Bottom Water Level 32.0m ODL

R5 Service Tank R5

Reticulation Analysis

70Mar 2010

R5

1

2

6

7

8

9

10

11

12

12.0

7.5

7.0

7.5

6.0

6.0

6.0

6.0

7.0

13.0

13.0

13.0

13.0

13.013.0

218.0 lit/sec

31.0 lit/sec

1.0 lit/sec

10.0 lit/sec

8.0 lit/sec Peak Flow Analysis

Peak Factor = 2.5

1

1000

11

1500

13

1500

7

1000

BWL 32.0

Iteration using

Hardy-Cross method

R5 Service Tank R5

Page 66: Ui T M  Water  Supply ( Mar2010)

Node ID Elevation (m)

Base Demand LPS

Demand LPS

Head (m) Residual Pressure

1 Resv 33 #NA -555.0 33.0 0.00

2 13 31 31.0 31.82 18.82

3 13 8 8.0 28.91 15.91

4 13 180 180.0 27.27 14.27

5 13 99 99.0 24.93 11.93

WATER SUPPLY

Reticulation Analysis

WATER RETICULATION

11

71

6 6 0 0.0 29.12 23.12

7 6 0 0.0 29.10 23.10

8 13 1 1.0 27.40 14.40

9 13 10 10.0 26.66 13.66

10 13 0 0.0 29.27 16.27

11 13 8 8.0 29.55 16.55

12 13 218 218.0 30.41 17.41

71Mar 2010Analysis using Epanet Version 2.0

Page 67: Ui T M  Water  Supply ( Mar2010)

Link ID Length (m) Diameter (mm)

Roughness Flow LPS Velocity (m/s)

Headloss(m/km)

Pipe 1 1000 900 100 555.00 0.87 1.18

Pipe 2 5000 800 100 277.05 0.55 0.58

Pipe 3 3000 800 100 269.05 0.54 0.55

Pipe 4 2000 450 100 89.05 0.56 1.17

Pipe 5 4000 200 100 -9.95 0.32 1.05

Pipe 6 1000 200 100 1.17 0.04 0.02

WATER SUPPLY

Reticulation Analysis

WATER RETICULATION

11

Pipe 7 1000 200 100 -3.69 0.12 0.17

Pipe 8 2000 300 100 -9.87 0.14 0.14

Pipe 9 2000 300 100 -17.83 0.25 0.43

Pipe 10 3000 800 100 -246.95 0.49 0.47

Pipe 11 1500 150 100 4.87 0.28 1.13

Pipe 12 1000 150 100 3.87 0.22 0.74

Pipe 13 1500 150 100 -6.13 0.35 1.74

Pipe 14 1000 200 100 -11.12 0.35 1.29

72Mar 2010Analysis using Epanet Version 2.0

Page 68: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Reticulation Pipes Network

WATER RETICULATION

11

BWL 32.0 Bottom Water Level 32.0m ODL

R5 Service Tank R5

73Mar 2010

R5

BWL 32.0

Page 69: Ui T M  Water  Supply ( Mar2010)

Tim

ur

R5

R7

R6

External Storage TanksMain Reticulation Pipelines

LEGENDTransmission PipelineDistribution Pipelines

WATER SUPPLY

Overall Water Supply System

WATER RETICULATION

11

To Kuala LumpurTANKS SCHEDULE

WATER DEMANDS

R2

R4

R3

From Treatment

Plant

R9

R8

R1

74Mar 2010 74

Page 70: Ui T M  Water  Supply ( Mar2010)

12 TYPICAL DRAWINGS

Page 71: Ui T M  Water  Supply ( Mar2010)

Proposed Tapping Point byHot tapping method

Proposed Bulk Meter

WATER SUPPLYTYPICAL DRAWINGS

12

76Mar 2010

Transmission Pipeline

Page 72: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Water Reticulation

TYPICAL DRAWINGS

12

77Mar 2010

Page 73: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Plan of Suction Tank & Pump House

TYPICAL DRAWINGS

12

78Mar 2010

Pump House

Suction Tank

Page 74: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Cross-section of Suction Tank

& Pump House

TYPICAL DRAWINGS

12

79Mar 2010

Page 75: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLY

Elevated R.C. Water Tank

TYPICAL DRAWINGS

12TWL=35.26m

BWL=30.0m

Overflow pipe

24000

24800

47009200 9200

5765

5265

6667

6667

26668

6667

80Mar 2010

6667

1450

Page 76: Ui T M  Water  Supply ( Mar2010)

WATER SUPPLYTYPICAL DRAWINGS

12

81Mar 2010

Constructed Water Storage Tanks & Pumping System

Page 77: Ui T M  Water  Supply ( Mar2010)

Thank You

Terima Kasih

82Mar 2010

Page 78: Ui T M  Water  Supply ( Mar2010)

Questions & AnswersQuestions & Answers

83July 2009

Email: [email protected]