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TWINET
Improving leak detection in water
network with a Digital Twin
Asia-Pacific Smart Water Utilities
Singapore, December 15th, 2022

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How do you address leak detection?
15/12/2022 TWINET - Smart Water Utilities 2022

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How do you address leak detection?
15/12/2022 TWINET - Smart Water Utilities 2022
Corrective Acoustic Noise loggers
Sniffing dog
Tracing gas

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The traditional approach
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Permanent sectorization (L1)
Permanent sectorization (L2)
DMA (L3)
Pre-location
Correlation
Acoustic -
Tracing Gas
10 km
1 km
100 m
1 m
100 km

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CAPEX
• Equipment
• Civil works
OPEX
• Maintenance
OPERATIONAL ISSUES
• Head loss
• Dead ends
• Security of supply
Challenges with physical sectorization
15/12/2022 TWINET - Smart Water Utilities 2022

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WHAT IF YOU COULD MAKE
YOUR SECTORS VIRTUAL?
TWINET

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REQUIREMENTS:
MODEL & SENSORS
> Open network (no physical boundaries)
> Calibrated model (accurate)
> Deployment of pressure sensors with
associated virtual network
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TWINET for Virtual sectorization
YYY.517_ESPERANCE
233.521_MAURICE_DESLAND
223.515_JB_PEINCEDE
230.514_ATELIERS
241.526_BRETONNE
222.522_GEORGES_CONNE
15/12/2022 TWINET - Smart Water Utilities 2022

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OUTCOME: LOSSES MAPPING
> Real losses estimation
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TWINET for Virtual sectorization
YYY.517_ESPERANCE
233.521_MAURICE_DESLAND
223.515_JB_PEINCEDE
230.514_ATELIERS
241.526_BRETONNE
222.522_GEORGES_CONNE
15/12/2022 TWINET - Smart Water Utilities 2022

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OUTCOME: LEAK DETECTION
> Abnormal consumption area
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TWINET for Leak Detection
15/12/2022 TWINET - Smart Water Utilities 2022

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TIWNET
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Permanent sectorization (L1)
Permanent sectorization (L2)
DMA (L3)
Pre-location
Correlation
Acoustic -
Tracing Gas
10 km
1 km
100 m
1 m
100 km

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HOW DOES
IT WORKS?
TWINET - Smart Water Utilities 2022
15/12/2022

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Reverse modeling
Model
Hydraulic laws
Parameters :
X3
X4
…
time
Q,
P
,
Cl
Outputs : f(xi)
Inputs
X1
X2
…
Classical hydraulic model Direct problem resolution
Parameters :
X3
X4
…
time
Q,
P
,
Cl
output : f(xi)
Inputs
X1
X2
…
La modélisation inverse utilise les lois de comportement pour estimer les valeurs vraisemblables des mesures et identifier les
paramètres.
Inverse hydraulic model Inverse problem resolution
? ?
?
𝐹(𝑥) = ෍
𝑖=1
𝑚
𝑦𝑖 − 𝑓𝑖(𝑥)
𝜎𝑒𝑖
2
Minimize |y-F|²
Measurements
Model
Hydraulic laws
15/12/2022 TWINET - Smart Water Utilities 2022

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15/12/2022 TWINET - Smart Water Utilities 2022
Q , P
System needs
Network description
(GIS)
O/F
DN
…
Hydraulic
model
Q, P …
Inverse model
solver
Q, P …
Physical
equations
?
? O/F
O/F
DN
P P
P
P
P
P
Q
Q
Digital TWIN

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15/12/2022 TWINET - Smart Water Utilities 2022
Aquadvanced®: Transforms data into value
o SCADA
o Geographical Information
System
o Data historian
o Sensors
o Hydraulic model
o AMR system
o Laboratory Information
Management System
o Enterprise Asset Management
o Workforce management
o Customer Information System
Events
management
Map based display
real time
dashboard

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15/12/2022 TWINET - Smart Water Utilities 2022
Contact Info
APAC Region:
Hernani Theias
hernani.theias@suez.com
Rest of the World:
Francois Figueres
francois.figueres@suez.com
AquadvancedTM
Real-Time
Monitoring &
Control
TwinetTM
Virtual DMA’s
Calm
NetworksTM
iDrolocTM
Tracing gaz leak
detection
Meter
Optimization
Machine
learning based
Asset
AdvancedTM
Optimal Asset
Management
Burst Forecast
Machine
learning based
AquacircleTM
NRW
Assessment
Satellite
Image
analysis
Advanced
Inspections
Field
assessment
Some of our supporting Technologies for water networks

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suez.com