Localized Mixing for Improvement of Hydropower Releases from J. Percy Priest Reservoir

by Richard E. Price, US Army Engineer Waterways, Experiment Station, United States,
Robert B. Sneed, US Army Engineer Waterways, Experiment Station, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The J. Percy Priest Project, located on the Stones River near Nashville, TN, experienced low dissolved oxygen (DO) in the tailwaters during hydropower generation. Using commercially available surface pumps, a localized mixing pilot study was conducted to determine its effectiveness in improving the release dissolved oxygen. The study, which was conducted during three stratification periods in 1987, indicated that location of the pumps relative to the withdrawal zone impacted the dilution factor of the release. Results also indicated that as the stratification weakened during the early fall, the dilution factor increased.

Subject Headings: Hydro power | Dissolved oxygen | Reservoirs | Water pollution | Water quality | Hydration | Pumps | Power plants | Tennessee | United States

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