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Syrinix and Anglian Water worked together to explore the capability of pressure monitoring to identify bursts on force mains, a problem with significant consequence for both customers and the environment, therefore increasing resilience by improving visibility and time to respond is imperative.

The project began with PIPEMINDER-C sensors placed on poor performing assets which were known to be at higher risk of failure. The intention behind monitoring these assets was to generate reference data which would allow for the understanding of patterns associated with bursts and poor performance.

The data collected is run through Syrinix’s patent pending algorithm in order to analyse the operation of the complete pipeline system.

This data translates to a visual representation of what good, bad and indifferent performance looks like, ultimately meaning Syrinix can advise upon how a system is currently operating compared to what optimum performance should be.

Figure 1 – sensor placement of PIPEMINDER-C on a gravity wastewater network

 

By analysing the one-minute summary data stream, the method extracts number of minutes with:

  • Low static head
  • Normal static head
  • Low delivery pressure
  • Normal delivery pressure
  • High delivery pressure
  • Excessive transient

 

Figure 2 - shows a graphical representation of these zones

Data is sent every 6 hours to RADAR, where it is analysed against set performance parameters, determining the system operating state and enabling the identification of asset issues.

If activity occurs outside of the set 'zone', a burst alert is raised in the operational control centre and the time to respond to asset failure is reduced significantly.

By looking at analysis of time spent in other zones it became possible to determine the system operating state such as ragging blockages and sticking non-return valves, giving predictive capabilities to asset owners and the proven ability to address underperformance before failure.

It was the capture and interpretation of this data that gave the project real commercial value.

This data tracked over time (figure 3) shows system issues raised in red and a state counter (figure 4) is used to indicate the asset issue.

An alert is then raised in the Operational control centre so a review and response to the failure can be planned.

This better use of data gives a complete understanding of system performance which can then feed a predictive maintenance plan.

Figure 3

Figure 4

 

“This new level of monitoring has allowed Anglian Water to deploy strategies aimed at extending the life of the rising main (such as soft starts on pumps and improved air valve maintenance)

Early results have suggested will allow deferral of capital investment by extending asset life."

Rebecca Harrison - Optimisation Strategy Manager Anglian Water