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FP5

THERFAT Informe resumido

Project ID: FIKS-CT-2001-00158
Financiado con arreglo a: FP5-EAECTP C
País: Germany

Collation and synthesis of field experience

As a first step in the THERFAT project, a survey of fatigue susceptible Tee-configuration with hot and cold temperature mixing in various nuclear power plants has been carried out by the utilities E.ON, EDF and Fortum. From these a variety of Tee-geometries were selected to be investigated (DN 50/DN 50, DN 100/DN 25, DN 80/ DN 80) with different flow velocities and temperature differences.

A reduced number of configuration is selected as the starting point for the upcoming activities in the project: performance of representative experiments, visualization and quantification of relevant parameters, verification of experimental results by numerical calculation, development of a numerical evaluation approach applicable for Tee-configurations, determination of existing safety margins using common codes procedures, determination of load bearing capabilities, comparison of results, combination of the results and development of an overall integrity concept framework.

Reported by

E.ON KERNKRAFT GMBH
Tresckowstraße 5
HANNOVER
Germany
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