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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

Abstract:
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.


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
URN: urn:nbn:de:swb:90-435721
KITopen ID: 1000043572
HGF-Programm 32.27.02; 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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