Meeting Environmental Commitments at Power Plants Using Real-Time Reservoir Scheduling

by Peter Ostrowski, Jr., Engineering Lab TVA, United States,
Barbara A. Miller, Engineering Lab TVA, United States,
Ming C. Shiao, Engineering Lab TVA, United States,

Document Type: Proceeding Paper

Part of: Computerized Decision Support Systems for Water Managers


This paper describes two different real-time modeling systems that determine if scheduled hydro releases will affect meeting environmental commitments. The modeling system for John Sevier Fossil Plant provides an interactive and efficient solution to complicated and highly unsteady flow conditions along a 44-mile river reach. The modeling system is installed at TVA's Power Control Center and run on a daily basis to determine if scheduled releases from the upstream Fort Patrick Henry Dam will provide sufficient water to meet a minimum bypass flow requirement at John Sevier. The modeling systems for Sequoyah and Browns Ferry Nuclear Plants use a similar approach to determine if releases from upstream and downstream hydro plants will affect the nuclear plant's need to use cooling towers. The modeling systems couple unsteady flow routing models with diffuser performance models to determine the effects of the nuclear plant's heated discharges. Additional aspects of the subject are discussed.

Subject Headings: Power plants | Hydrologic models | Rivers and streams | Environmental issues | Reservoirs | Scheduling | Hydro power | Unsteady flow | Tennessee | United States

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