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Performance of Prototype Aerating Weirs Downstream From TVA Hydropower Dams

by Gary E. Hauser, TVA Engineering Lab, Norris, United States,
William D. Proctor, TVA Engineering Lab, Norris, United States,
Tony A. Rizk, TVA Engineering Lab, Norris, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

TVA has constructed aerating weirs below certain of its hydropower dams to (1) increase tailwater dissolved oxygen (DO) content during generation, and (2) improve minimum flows between generating periods. Performance characteristics of two types of aerating weirs (labyrinths and infusers) are presented, along with advantages and disadvantages of each.

Subject Headings: Weirs | Dissolved oxygen | Aeration | Hydro power | Dams | Tailwater | Water flow

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