Nuclear Engineering and Technology

  • 제56권3호
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  • Pages.824-831
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  • 2024
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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The SPIZWURZ project - Experimental investigations and modeling of the behavior of hydrogen in zirconium alloys under long-term dry storage conditions

  • Mirco Grosse (Karlsruhe Institute of Technology, Institute for Applied Materials) ;
  • Felix Boldt (Bundesgesellschaft fur Zwischenlagerung) ;
  • Michel Herm (Karlsruhe Institute of Technology, Institute for Nuclear Waste Disposal) ;
  • Conrado Roessger (Karlsruhe Institute of Technology, Institute for Applied Materials) ;
  • Juri Stuckert (Karlsruhe Institute of Technology, Institute for Applied Materials) ;
  • Sarah Weick (Karlsruhe Institute of Technology, Institute for Applied Materials) ;
  • Daniel Nahm (Gesellschaft fur Reaktorsicherheit)
  • 투고 : 2023.07.24
  • 심사 : 2023.09.18
  • 발행 : 2024.03.25
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초록

In order to investigate the occurring processes during long-term dry storage of spent fuel assemblies, a joined project called SPIZWURZ, between the Karlsruhe Institute of Technology and the Gesellschaft für Anlagen-und Reaktorsicherheit (GRS), was started. Aim of the SPIZWURZ project is the determination and quantification of the influence of texture and elastic strain on diffusion and solubility of hydrogen in three different zirconium alloys used in western Europe during a long-term cooling transient (1 K/d) starting at 400 ℃. The strain in the cladding of an irradiated spent fuel rod shall be measured. Models predicting the formation of radial oriented hydrides will be validated, improved, and implemented in the GRS fuel rod performance code TESPA-ROD. This paper describes the SPIZWURZ project and already obtained first results.

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과제정보

The SPIZWURZ project (FKZ RS1586A/1501609B) is funded by the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV). The INCHAMEL facility was funded by the HOVER program of the Helmholtz Association. The authors highly appreciate the technical support of the KIT workshops during this study. The authors thank the Paul Scherrer Institute (PSI) for providing beam-time at the ICON facility and Anders Kaestner and David Mannes for their assistance during the measurements and the analysis. Further, the chemical analysis group of Thomas Bergfeldt (IAMAWP), the KIT's UENCH group and all colleagues is thanked.

참고문헌

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  3. M. Grosse, E. Lehmann, P. Vontobel, M. Steinbrueck, Quantitative determination of absorbed hydrogen in oxidised zircaloy by means of neutron radiography, Nucl. Instrum. Methods Phys. Res. A 566 (2006) 739-745, https://doi.org/10.1016/j.nima.2006.06.038.
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  8. F. Boldt, D. Nahm, Benchmark for the Simulation of Hydrogen Diffusion in Fuel Rod Claddings, Benchmark Specifications Version 2, GRS, July 2022.
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