Development of Radiolysis Gas Counter Measures based on Risk Informed Classifications

  • Bernd Schubert
  • Uwe Kleen
Conference paper


On December 14, 2001 a pipe rupture event occurred in the Boiling Water Reactor plant Brunsbüttel. The event scenario and the root cause of the damage are described in detail in [1]. It became apparent that the rupture was caused by a radiolysis gas explosion. As consequence of the explosion authorities asked for a basic investigation to determine all areas with the potential of radiolysis gas accumulation and for qualified measures to detect and prevent inadmissible radiolysis gas accumulations which can cause a degradation of the safety concept if an ignition takes place.


Eddy Diffusion Safety Requirement Fault Tree Temperature Control System Stagnant Flow 
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  1. 1.
    Kleen U., Hartel W. Rupture of vessel head spray line at Brunbüttel Nuclear Power Station — Root cause analysis and measures for preventing radiolysis gas reactions in the future. ICONE 11-36558, Tokyo, April 20-23, 2003Google Scholar
  2. 2.
    RSK (German reactor safety commission) — Empfehlung — Grundsätzliche Anforderungen an die Maßnahmen zur Verhinderung unzulässiger Radiolysegasreaktionen, 2003-07-10Google Scholar

Copyright information

© Springer-Verlag London 2004

Authors and Affiliations

  • Bernd Schubert
    • 1
  • Uwe Kleen
    • 1
  1. 1.Hamburgische Electricitätswerke AGHamburgGermany

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