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BIRMINGHAM RESILIENCEHighters Heath to Meriden Flow Increase from 25 Ml/d to 40 Ml/d – April to June 2016
Colin RimmerSenior Engineer (Atkins)
Clean Water Modelling Advisory GroupAutumn Conference 5th October 2016
THE BIRMINGHAM RESILIENCE PROJECT OVERVIEW
SEVERN TRENT WATER’S STRATEGIC GRIDLadybower Reservoir
Sheffield
Derby
Nottingham
Leicester
CoventryBirmingham
Worcester
CheltenhamGloucestershire 250 pressure loggers
RECORDED DATA SAMPLE
MODEL CALIBRATION
Sawley FCV
Sawley FCV
TV’s or Roughness > 40mm
MODEL CALIBRATION
MODEL CONFIDENCE RATING & SYSTEM CAPACITY
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Grid Miser Model Synergi Model
OPERATIONAL READINESS MODE ‐ MODEL RESULTS
STRATEGIC GRID DISCOLOURATION RISK – CURRENT VIEW
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DVA Ambergate to Hallgates
Avon‐Soar Link Hallgates to Oldbury
M2HH and Birmingham Network
HIGHTERS HEATH TO MERIDEN FLOW INCREASE ‐ TRIAL PLANNING
TRIAL PLANNING ‐ SITE SURVEYS
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TRIAL PLANNING – MERIDEN TO HIGHTERS HEATH CURRENT SETUP
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Current Peak Flow Rate 26.9 Ml/d (Volume 25 Ml/d) Increase to 40 Ml/d
Pipe Volume & Water Age1200mm = 7.2 km & 900mm 15.8 km (Total Volume 18.98 Ml)
Current daily volume 25 Ml/d (18 Hrs)When increased to 30 Ml/d (15 Hrs)When increased to 35 Ml/d (13 Hrs)When increased to 40 Ml/d (11.5 Hrs)
Reverse flow 80 Ml/d
Birmingham Mid Level
TRIAL PLANNING – MERIDEN TO HIGHTERS HEATH CURRENT SETUP
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Produced to highlight any potential risks & to ensure that a proactive response was completed by operational staff during the
flow increase period.
TRIAL PLANNING – PRESENTATION TO OPERATIONAL STAFF
12To update footer go to 'Insert' Tab > Header & 12
MERIDEN TO HIGHTERS HEATH – TURBIDITY LOGGER LOCATIONS
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TRIAL PLANNING – CRIB SHEET
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Overall Management of Trial (Conference call prior to each flow
increase)
Trial Planning / Support
(Modelling Input)
Network Control
Water Resources
Birmingham Networks Site Operators
Water QualitySpecialist Support Engineer (R&C documents)
Aqueduct Site Operators (Grid)
TRIAL REVIEW
TRIAL REVIEW – PEAK FLOW RATE TIMES
1616
TRIAL REVIEW – CONTROLLING THE FLOW INCREASES
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TRIAL REVIEW – STRENSHAM OUTAGE
Understanding the risks on the wider network (i.e. the Grid & the Birmingham Network).
Strensham WTW
Meriden DSR
M2HHTrunkMain
Birmingham Network
TRIAL REVIEW – BIRMINGHAM DEMAND & MANAGING SR STORAGE
TRIAL REVIEW – BIRMINGHAM DEMAND CHANGES
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2
TRIAL REVIEW – TURBIDITY MONITORING
TRIAL REVIEW – FLOW INCREASE REVIEW
Benefits;• Improved resilience.• Reduced the customer contact risk.• Operational staffing input has now
reduced dramatically (6 weeks to 2 days). It should be noted that the flow increase to 40 Ml/d has now been completed in just one day.
• Improved Asset Confidence within the business.
• No need to robust flush the main (i.e. No water losses).
• Removed the need for trunk mains cleaning.
No Customer Contacts
TRIAL REVIEW – PUMP CONTROL AND FLOW CHANGE REVIEW
TRIAL REVIEW – DATA CAPTURE / FUTURE FLOW INCREASES
Documenting the results to ensure that future conditioning of the trunk main can be completed by operational staff.
