论文信息 - Results of the QUENCH-16 Bundle Experiment on Air Ingress : KIT Scientific Reports 7634

Results of the QUENCH-16 Bundle Experiment on Air Ingress : KIT Scientific Reports 7634

The out-of-pile bundle experiment QUENCH-16 on air ingress was conducted in the electrically heated 21-rod QUENCH facility at KIT in July 2011. The oxidation of the Zircaloy-4 claddings in air following a limited pre-oxidation in steam was examined. Three contributors for intensive hydrogen production during the final reflood were identified: 1) re-oxidation of nitrides, 2) secondary oxidation of cladding metal by steam penetrated through the porous re-oxidized scales and 3) melt oxidation.

[1] Martin Steinbrück,et al. Air oxidation of Zircaloy-4, M5® and ZIRLO™ cladding alloys at high temperatures , 2011 .

[2] Martin Steinbrück,et al. Influence of oxide layer morphology on hydrogen concentration in tin and niobium containing zirconium alloys after high temperature steam oxidation , 2009 .

[3] C. Duriez,et al. Separate-effect tests on zirconium cladding degradation in air ingress situations , 2009 .

[4] A. Miassoedov,et al. Overview of severe accident research activities performed in the Lacomeco Project at Karlsruhe Institute of Technology , 2012 .

[5] J. P. Van Dorsselaere,et al. SARNET - Severe Accident Research Network of Excellence , 2010 .

[6] T. Haste,et al. Oxidation Phenomena in Severe Accident (OPSA) , 1999 .

[7] Martin Steinbrück,et al. Prototypical experiments relating to air oxidation of Zircaloy-4 at high temperatures , 2009 .

[8] Martin Steinbrück,et al. Results of the QUENCH-10 experiment on air ingress , 2006 .