Applications of a Diffuser Performance Model at Browns Ferry Nuclear Plant

by Susan M. Nelson, TVA, Water Systems Development, Branch, Norris, TN, USA,
Walter L. Harper, TVA, Water Systems Development, Branch, Norris, TN, USA,
Peter Ostrowski, Jr., TVA, Water Systems Development, Branch, Norris, TN, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

An unsteady flow model and a diffuser performance formulation were combined to more accurately determine plant-induced temperature effects. This model has been applied to several aspects of the problem of thermal discharges at Browns Ferry. The first application uses a 24-hour projection of river flow, plant operation, ambient river temperatures and meteorological conditions to assist the TVA Load Control Center in selecting the most efficient cooling mode to be used on the following day. The second application combines the model with a data acquisition network which monitors actual diffuser discharge flows and temperatures, dam releases, and a measure of mixed temperature to be used as a real-time system for monitoring thermal compliance.



Subject Headings: Thermal analysis | Diffusion (thermal) | Thermal pollution | Temperature measurement | Power plants | Mathematical models | Flow measurement

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