Automatic gauging ussing dilution method | Station automatique de mesure de débit par dilution | Station automatique de mesure de débit par dilution: Preuve de concept sur le Haut Bréda
2024
Barth, Thierry | Thollet, Fabien | Caron, Sylvain | EDF - Division Technique Générale (DTG) ; EDF (EDF) | RiverLy - Fonctionnement des hydrosystèmes (RiverLy) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | DREAL PACA | SCHAPI Ministère de la transition écologique
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Show more [+] Less [-]English. AutoSalt (AQAc) is an autonomous flow measurement system that can target stage ranges in turbulent water courses. The system consists of a control system, 300 litres brine tank and stand, Creek Pressure Transducer, two conductimeters self-logging EC-T probes, and a proprietary salt injection system. Salt Dilution is a well-established method (Østrem 1964, Moore 2005, Richardson 2017, ISO-9555 1992) to measure flow in turbulent water courses. The AQAc control system measures the water level in the channel. Together with a nominal, or established, Rating Curve (RC) an estimate of Discharge (Q) is made. Using control logic, a measured amount of brine is injected into the channel. This is programmed to occur on the falling limb of a hydrograph, within a given stage range, or on a regular interval, or on demand via telemetry.
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