Radionuclide release from high burnup spent fuel during corrosion in salt brine in the presence of hydrogen overpressure

In the case of a contact between groundwater and Fe-based spent fuel disposal containers in a repository large amounts of hydrogen will be produced by the corrosion of iron, which may result in significant hydrogen pressures. To quantify to what extent the hydrogen overpressure may counteract radiol...

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Veröffentlicht in:	Journal of nuclear materials 2005-11, Vol.346 (1), p.24-31
Hauptverfasser:	Loida, Andreas, Metz, Volker, Kienzler, Bernhard, Geckeis, Horst
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Energy Exact sciences and technology Fuels Nuclear fuels Preparation and processing of nuclear fuels
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Zusammenfassung:	In the case of a contact between groundwater and Fe-based spent fuel disposal containers in a repository large amounts of hydrogen will be produced by the corrosion of iron, which may result in significant hydrogen pressures. To quantify to what extent the hydrogen overpressure may counteract radiolysis enhanced matrix dissolution, related experimental work has been performed. High burnup spent fuel was corroded in 5.6 mol (kg H 2O) −1 NaCl solution applying H 2 overpressures (experimental set 1)
ISSN:	0022-3115 1873-4820
DOI:	10.1016/j.jnucmat.2005.05.020