Bival System for Downstream Controlby Guy Chevereau, SOGREAH, Grenoble, France,
Sylvie Schwartz-Benezeth, SOGREAH, Grenoble, France,
Abstract: The BIVAL system of canal regulation guarantees that the maximum discharge can be delivered at any time, as for downstream control systems and, moreover, it minimizes the canal dyking works since the banks need not be horizontal along the total length of the reach but only along approximately half. The principle of the BIVAL system (Sogreah's patent) is based on a simple linear equation. It requires simultaneous measurements of levels downstream and upstream in the reach, in order to cause the upstream gate to respond immediately to the downstream demand. In this paper, the BIVAL system is fully described and two examples of application are given.
Subject Headings: Rivers and streams | Control systems | Canals | Irrigation systems | Automation | Flow measurement | Water discharge | Linear functions
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