New method to assess tube support plate clogging phenomena in steam generators of nuclear power plants
| Autor: | Daniel Bouskela, J.M. Favennec, M. Midou, V. Chip, B. El Hefni, J. Ninet |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Engineering
business.industry Applied Mathematics Nuclear engineering Pressurized water reactor Boiler feedwater Mechanical engineering Thermal power station Nuclear power Computer Science Applications law.invention Coolant Clogging Control and Systems Engineering law Steam turbine Modeling and Simulation Tube (fluid conveyance) business Software |
| Zdroj: | Mathematical and Computer Modelling of Dynamical Systems. 16:257-267 |
| ISSN: | 1744-5051 1387-3954 |
| Popis: | Pressurized water reactor steam generators (PWR SGs) are large components whose main function is to cool the fission reactor by extracting the thermal power conveyed by the primary coolant, and thus to produce steam for the turbine generator. Tube support plate (TSP) clogging phenomena may occur in the SG when iron oxide particles carried in the secondary feedwater get unavoidably deposited inside the SG structure, and specifically in two main regions: on the U-tube outer walls and on the quatrefoil sections of the plates that support the U-tubes. They may reduce its cooling efficiency and impact its dynamic behaviour, thus leading to possible safety issues. Methods based on local inspections of the SG have been designed and are already in use. They produce estimators of the local TSP clogging ratio, during the yearly outage of the plant for refuelling and maintenance. A new method to assess a global estimator of the TSP clogging ratio is presented. This method is based on a 1D physical model of the SG th... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |