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Increasing the reliability of the flow rate measurements upstream of the Orge Station (DSEA 94, Conseil Général du Val de Marne, 2015)

publié le 7 avr. 2014 à 02:45 par 3D EAU Ingénieur   [ mis à jour : 11 sept. 2015 à 09:35 ]

Increasing the reliability of the flow rate measurements upstream of the Orge Station (DSEA 94, Conseil Général du Val de Marne, 2015)

The Sanitation Authority of the Conseil Général du Val de Marne wished to improve the reliability of the measurement method in place to measure the inflow into the Orge Station. A technical and economical comparative study was first carried out to help us choose solutions of optimal reliability, increasing the reliability of the measurements while at the same time reducing operational costs. The study covered a wide range of measuring devices (water level measurement only, water level and velocity measurements, ultrasonic transit time measurement methods), all located in complex hydraulic conditions. Among the measuring points that have had their reliability increased as a result of this study, we can mention:


  
  • increased reliability of the ultrasonic transit time sensors located upstream of a junction
  • flow rate measurement through a Venturi flume (custom designed using 3D modeling) with a circular bottom, subject to a strong downstream influence and a strong time variation.
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