Existing Work
A current CEED project is nearing completion and is looking at the impact of accuracy on ultrasonic flow measurement when not installed in areas of fully developed flow. In addition various manufacturers are working to improve accuracy and the ease of use of instrumentation.

Work being done by manufacturers will be protected as they do not want their IP to be used by competitors. This research work will allow the Water Corporation to determine the optimum configuration for the placement of ultrasonic flow measurement sensors to achive accuracy levels that are usable for analysis, monitoring and pump protection.

Objectives
Understanding of the behaviour of ultrasonics through lined pipes, coatings and delaminated coatings/ linings.

The current CEED project (Use of flow measurement devices in constrained environments) involved the use of PVC pipe, which is a uniform material giving conditions not normally encountered in the field. This project will expand on previous work and allow the Water Corporation to better understand the behaviour of ultrasonic measurement on lined pipes and optimum setup arrangements for sensors.

This project will allow the cost effective installation of flow measurement devices to be used for planning, monitoring and overflow reporting.

Scope
Determine how ultrasonic measurement behaves through a lined pipe to inform the optimum placement of sensors to achieve the most accurate flow measurement possible. The existing test rig will be used, with coated and uncoated concrete lined pipes to be fitted.

The project will include:
• Expansion of the placement configurations of flow sensors
• Confirmation of the accuracy of measurement outside of fully developed flow.
• Development of hydraulic model to predict flow measurement
• Impacts of scour returns and flanges is outside the scope of the project