The decay heat (energy due to decay of unstable nuclei) is a small fraction of reactor power at nominal conditions, but after reactor shut-down it is the most important heat source. For taking this source into account in design and safety studies, recommendations are available for fuels of operating reactors, such as UOX and MOX. Fuels for EFIT (European Facility for Industrial Transmutation), unlike UOX and MOX, should contain a significant amount of Minor Actinides (MAs) that would influence decay heat. CEA, CIEMAT, ENEA, FZK (now KIT), PSI and SCK•CEN established a benchmark case and computed decay heat curves for MA-bearing fuels and a MOX-type fuel. The decay heat in the fuels with MAs is appreciably higher than in MOX, except for low burnup cases after short cooling times. This should be taken into account in the design of the decay heat removal system for EFIT. The obtained differences between the decay heat in MA-bearing and MOX fuels are supposed to be representative for the benchmark (or similar) conditions. More effort is needed to evaluate the uncertainties of the computed results.
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18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4930-9
PROCEEDINGS PAPER
Decay Heat Benchmark for Uranium-Free Fuels With Minor Actinides
Andrei Rineiski
,
Andrei Rineiski
Karlsruhe Institute of Technology, Karlsruhe, Germany
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Ge´rald Rimpault
,
Ge´rald Rimpault
CEA Cadarache, Saint-Paul-Lez-Durance, France
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Georgios Glinatsis
,
Georgios Glinatsis
ENEA, Bologna, Italy
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Sandro Pelloni
,
Sandro Pelloni
PSI, Villigen, Switzerland
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Aleksandra Schwenk-Ferrero
,
Aleksandra Schwenk-Ferrero
Karlsruhe Institute of Technology, Karlsruhe, Germany
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Maria Carmen Vicente
Maria Carmen Vicente
CIEMAT, Madrid, Spain
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Andrei Rineiski
Karlsruhe Institute of Technology, Karlsruhe, Germany
Ge´rald Rimpault
CEA Cadarache, Saint-Paul-Lez-Durance, France
Georgios Glinatsis
ENEA, Bologna, Italy
Nadia Messaoudi
SCK•CEN, Mol, Belgium
Sandro Pelloni
PSI, Villigen, Switzerland
Aleksandra Schwenk-Ferrero
Karlsruhe Institute of Technology, Karlsruhe, Germany
Maria Carmen Vicente
CIEMAT, Madrid, Spain
Paper No:
ICONE18-29654, pp. 217-226; 10 pages
Published Online:
April 8, 2011
Citation
Rineiski, A, Rimpault, G, Glinatsis, G, Messaoudi, N, Pelloni, S, Schwenk-Ferrero, A, & Vicente, MC. "Decay Heat Benchmark for Uranium-Free Fuels With Minor Actinides." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 2. Xi’an, China. May 17–21, 2010. pp. 217-226. ASME. https://doi.org/10.1115/ICONE18-29654
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