Fast Reactors and Accelerator Driven Systems Knowledge Base

Working Materials of the Technical Working Group on Fast Reactors

Specialists' meeting on steam generator failure and failure propagation experience. Aix-en-Provence (France). 26–28 Sep 1990
report nr.: IWGFR--78
 

Abstract

The 35 participants, representing 7 Member States and one International Organization discussed recent investigations on leak development and propagation in LMFBR steam generators. The meeting was divided into three technical sessions: review of national status on studies of failure propagation (8 papers). Propagation experience on reactor steam generators (4 papers). Studies of failure propagation: codes, hydrogen detection, tests (11 papers).

Content

  • Introduction of the steam generator programs of the United States Department of Energy
  • Status of U.S. studies of failures and failure propagation in steam generators
  • Review of the Common European R&D programme on the development and propagation of leakage accidents in sodium-heated steam generators
  • SNR-300 steam generator accident philosophy - Assessment due to new understandings in Na/H20-reactions
  • Design of PFBR steam generator
  • Review on steam generator tube failure propagation study in Japan
  • EFR-600 MW Straight Tube Steam Generator, the strategy towards the definition of a design basis accident
  • Short introduction of the sodium-water steam generator safety program of the USSR
  • The experimental and engineering programmes to support the PFR Safety Case following the Superheater 2 under sodium leak: In particular, large scale experiments in the Super Noah Rig at Dounreay
  • An analysis of main processes at small water-into-sodium leaks in the BN-350 and BN-600 NPP steam generators
  • The under sodium leak in the PFR Superheater 2 in February 1987
  • SWAAM code development, verification and application to steam generator design
  • Phenix steam generator Na/H2O reaction incidents
  • An algorithm for the determination of emergency process parameters at water-into-sodium leaks in the BN-800 NPP steam generator
  • Tests and analysis on steam generator tube failure propagation
  • Programme PROPANA: A model of the propagation of water leaks into sodium in steam generators
  • MECTUB: A thermomechanical model for overheating studies of LMFBR Steam Generator tubes during a sodium/water reaction
  • Wastage and overheating effects - code development supported by experimental results
  • Detection systems of SG tube failure in Monju to limit failure within design basis leak
  • Hydrogen detection systems leak response codes
  • The UK contribution to the sodium-water reaction R and D programme in support of EFR
  • Experimental results of the consequences of sodium water reactions at the bottom tube plate region of straight tube steam generators
  • Test results of sodium-water reaction testing in near prototypical LMR steam generator