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Determination of the fission gas release in the segment N0204 and gas phase result of anoxic leaching experiment

González-Robles, Ernesto; Bohnert, Elke; Müller, Nikolaus; Herm, Michel; Metz, Volker; Kienzler, Bernhard

This paper presents the current status of the experiments performed at INE within the Work-packages 2 and 3 of the EURATOM FP7 Collaborative Project, “Fast / Instant Release of Safety Relevant Radionuclides from Spent Nuclear Fuel (CP FIRST-Nuclides)”. The segment N0204 from the pressure water reactor of Gösgen (KKG) nuclear power plant was selected to carry out this project. In a first approach and before the performance of leaching experiment, the fission gas release of this segment was determined to be 8.35% (in vol.). Leaching experiment of a cladded fuel pellet in bicarbonate water (19 mM NaHCO3 + 1 mM NaCl) under an Ar and H2 atmosphere with a total pressure of (40 ± 1) bar (pH2: 3 ± 1bar) were started. After a cumulative contact time of 57 days, 4.3% of the Xe and 17% of the Kr inventories of the cladded fuel pellet segment was released into the gas phase.

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DOI: 10.5445/KSP/1000041743
Zugehörige Institution(en) am KIT Institut für Nukleare Entsorgung (INE)
Publikationstyp Proceedingsbeitrag
Jahr 2014
Sprache Englisch
Identifikator ISBN: 978-3-7315-0233-3
ISSN: 1869-9669
KITopen-ID: 1000043572
HGF-Programm 32.27.02 (POF II, LK 01)
Erschienen in 2nd Annual Workshop Proceedings of the Collaborative Project "Fast / Instant Release of Safety Relevant Radionuclides from Spent Nuclear Fuel" (7th EC FP CP FIRST-Nuclides), Antwerp 05 - 07 November 2013. Ed.: B. Kienzler
Verlag KIT Scientific Publishing, Karlsruhe
Seiten 37-44
Serie KIT Scientific Reports ; 7676
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