Presentation is loading. Please wait.

Presentation is loading. Please wait.

APPLYING GIS FUNCTIONS IN NRW REDUCTION ACTIVITIES Ir. Zainuddin Bin Md Ghazali Chief Operating Officer Ranhill Water Services Sdn Bhd 83, Matang Building,

Similar presentations


Presentation on theme: "APPLYING GIS FUNCTIONS IN NRW REDUCTION ACTIVITIES Ir. Zainuddin Bin Md Ghazali Chief Operating Officer Ranhill Water Services Sdn Bhd 83, Matang Building,"— Presentation transcript:

1 APPLYING GIS FUNCTIONS IN NRW REDUCTION ACTIVITIES Ir. Zainuddin Bin Md Ghazali Chief Operating Officer Ranhill Water Services Sdn Bhd 83, Matang Building, Jalan Langkasuka, Johor Bahru, Malaysia. Tel: HP: Website:

2 What is NRW? Non Revenue Water definition is quantity of water produced from treatment plant not billed to customer NRW = System Input – Water billed

3 The formula ifP =System Input, C =Billed Consumption P - C = NRW % P P C * A measuring scale for Water Supply company efficiency

4

5 Infrastructure Leakage Index (ILI) Calculation for ILI is; CARL (Current Amount Real Loses) UARL (Un-Avoidable Real Loses) CARL = physical loses includes overflow, burst, and leaks UARL = (18 x Lm Nc + 25 Lp) Pr Pr = Pressure. Avg retic and distr mains = 3.2 Bar. Lm = Pipe length from GIS in meter. Nc = Number of Billings connections. Lp = Private length, or avg communication pipe in meter.

6 PHYSICAL LOSSES TARGET MATRIX

7 Physical Loss Performance: Categories; Guide to Further Action ABCD Good: further loss reduction may be uneconomic; careful analysis cost effective improvements. Potential for marked improvements: Consider pressure management, better active leakage practices and better maintenance. Poor: Tolerable only if water is plentiful and cheap; even then intensify NRW reduction efforts. Terrible: Inefficient use of resources; NRW reduction programs imperative and priority.

8 Why NRW is very important to any water operator? To fully optimize usage of treated water produced by consumers To optimize revenue Increase operational efficiency

9 Where do GIS functions benefit NRW Management? In areas of:  Water Asset Registration  DMA establishment  Network Modeling  Planning & Operation

10 Where do GIS functions benefit NRW Management? Water Asset Registration

11 Asset Registration : eliminate OUTDATED AND UNMAINTAINED DATA Created once in Excel and no update after that TACIT

12 JOHOR DIGITAL MAP & PIPELINES

13 ASSET MEASUREMENT Source : SAJH-GIS (Apr 2013)

14 MeasurementUnitYear 2006Year 2010% increase Pipe LengthKm15, , % ValveUnit39,51954,20737% HydrantUnit24,03336,11750% Air ValveUnit8,39312,53749% Double Air ValveUnit4,84813,953188% Water Sampling PointUnit % End CapUnit4,6236,51441% Customer supply pointUnit46,164501,103985% Asset update progress over five (5) years * Source of data courtesy of SAJ Holdings Sdn Bhd

15 GIS for Asset Registration  Single point of reporting for water assets  Avoid outdated and unmaintained data

16 Where do GIS functions benefit NRW reduction? DMA Establishment

17 DMZ – BW16 GIS for DMA establishment Network Tracing to locate valves to be boundary valves for DMA

18 DMZ polygon GIS for DMA establishment

19 Improved DMA boundaries and data value * Source of data courtesy of SAJ Holdings Sdn Bhd

20 Conflict output DMZ Conflict Inspector (DMZ-CI)

21 Result – better analysis for NRW by DMA (case on zero variance in number of connections * Source of data courtesy of SAJ Holdings Sdn Bhd

22 Result – better analysis for NRW by DMA on commercial losses * Source of data courtesy of SAJ Holdings Sdn Bhd

23 GIS for DMA establishment  To provide scale-down NRW analysis by DMA  Improve DMA boundary and data value  Better analysis on commercial losses  Leakage percentage and pressure management

24 Where do GIS functions benefit NRW reduction? Network Modeling

25 Hydraulic Modeling : tedious work in Excel and plotting in hydraulic software Create in Excel and transfer to Model

26 Data transfer from GIS to Hydraulic Modeling Software

27 Laid on Google map

28 Result: Analysis on DMA pressure survey (High Pressure)

29 GIS for Network Modeling  Avoid redrawing of data  Data transfer from GIS to Modeling software  Model can be shown as layer-lapping with GIS map/Google map

30 Where do GIS functions benefit NRW reduction? Planning & Operation

31 Burst location Burst location Burst Total GIS for Planning of Asset Replacement Pipe burst record in GIS GPS to locate burst location and record in GIS

32 GIS for Planning of Asset Replacement  Record of Asset  Burst records - for pipe replacement program

33 Planned Shut Down & Trace to Affected Customers Application

34 Record of customer affected by water disruption from billing system

35 GIS for DMA Maintenance  Opening/closing of valve: better management on service interruption during DMZ maintenance - ZPT - Step test

36 Challenges & lessons learned Be achieved with: High commitment from all staffs in the company – from top to bottom Collaboration & Co-operations Willing to improve Rapid development environments, ease of use, product reliability, and vendor stability are among key contributors to selecting integrated platform options Customer service/stakeholders’ interests must be the key indicator – fulfill the needs and efficient service

37 THANK YOU


Download ppt "APPLYING GIS FUNCTIONS IN NRW REDUCTION ACTIVITIES Ir. Zainuddin Bin Md Ghazali Chief Operating Officer Ranhill Water Services Sdn Bhd 83, Matang Building,"

Similar presentations


Ads by Google