Evaluation of Creep-Fatigue Integrity for High Temperature Pressure Vessel in a Sodium Test Loop

소듐 시험루프 내 고온 압력용기의 크리프-피로 건전성 평가

  • Received : 2014.04.21
  • Accepted : 2014.06.05
  • Published : 2014.08.01


In this study, high temperature integrity evaluation on a pressure vessel of the expansion tank operating at elevated temperature of $510^{\circ}C$ in the sodium test facility of the SEFLA(Sodium Thermal-hydraulic Experiment Loop for Finned-tube Sodium-to-Air heat exchanger) to be constructed at KAERI has been performed. Evaluations of creep-fatigue damage based on a full 3D finite element analyses were conducted for the expansion tank according to the recent elevated temperature design codes of ASME Section III Subsection NH and French RCC-MRx. It was shown that the expansion tank maintains its integrity under the intended creep-fatigue loads. Quantitative code comparisons were conducted for the pressure vessel of austenitic stainless steel 316L.


Creep-Fatigue;Pressure Vessel;Integrity Evaluation;Sodium-Cooled Fast Reactor;Sodium Test Loop


Supported by : 미래창조과학부의


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