Cel
Thermal fatigue is a recurring problem when LWR plants become older and life time extension activities are initiated. In general, the common thermal fatigue issues are understood and can be controlled by plant instrumentation systems. However, the Civaux 1 and other incidents indicate that certain piping system Tee's are susceptible to turbulent temperature mixing effects that cannot be adequately monitored by common thermocouple instrumentations, putting the reliability of integrity evaluation procedures in doubt. THERFAT proposes to review field data and perform advanced thermohydraulic flow simulations and stress and fracture analysis. Critical elements of the procedure will be investigated by targeted verification tests. Proposals will be made for improved thermal fatigue assessment procedures, screening criteria and for establishing a European Methodology on Thermal Fatigue.
Program(-y)
Zaproszenie do składania wniosków
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CSC - Cost-sharing contractsKoordynator
30457 HANNOVER
Niemcy
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Uczestnicy (15)
SW7 5QG LONDON
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13108 ST.PAUL LES DURANCE
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1755 ZG PETTEN
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69628 VILLEURBANNE
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28002 MADRID
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00048 ESPOO
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63067 OFFENBACH (AM MAIN)
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79108 FREIBURG (IN BREISGAU)
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01072 DRESDEN
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92084 PARIS LA DEFENSE
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70569 STUTTGART
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02044 ESPOO
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28709 SAN SEBASTIAN DE LOS REYES - MADRID
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918 64 TRNAVA
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