Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.019 seconds
Johansson, F.; Liljenfeldt, H., E-mail: Fredrik.johansson@skb.se, E-mail: Henrik.liljenfeldt@noemianalytics.com
Nuclear Energy Agency - NEA, 46 quai Alphonse Le Gallo, 92100 Boulogne-Billancourt (France); Institut de Radioprotection et de Surete Nucleaire - IRSN, 31 avenue de la Division Leclerc, 92260 Fontenay-aux-Roses (France)2019
Nuclear Energy Agency - NEA, 46 quai Alphonse Le Gallo, 92100 Boulogne-Billancourt (France); Institut de Radioprotection et de Surete Nucleaire - IRSN, 31 avenue de la Division Leclerc, 92260 Fontenay-aux-Roses (France)2019
AbstractAbstract
[en] During 2018-2019 SKB has investigated different types of fuel databases. The goal is to have a database with all essential fuel information necessary to perform criticality, decay heat, thermal and radiation shielding analysis as well as isotopic inventory. One important requirement for the database is that it should be possible to couple with analysis tools (e.g. Keno, Origen and MCNP) in a quality ensured way. Another aim is to be able to do 'as loaded' calculations for our different storage and transportation systems. This will open the way to a more optimised and cost effective spent fuel operation. The realisation of this would be greatly simplified by an automated way to import core follow data from the Swedish power plants. This paper will present initial results from evaluation of one of our options, the spent fuel database and analysis tool UNF-ST-DARDS developed by Oak Ridge National Laboratory (ORNL). UNF-ST-DARDS is developed by ORNL to perform high quality data storage and analysis for the US used fuel management. SKB has evaluated the tool for the Swedish system and evaluated it against some SKB use cases such as nuclide variations for different operating histories, decay heat calculations and as-loaded criticality analysis for the disposal canister. The paper will present experiences from implementation of UNF-ST-DARDS for the Swedish case and a comparison between the regular criticality analysis and the as-loaded methodology used in UNF-ST-DARDS for the current disposal canister design. The preliminary results indicate that for most of the cases the margins are large, as expected. UNF-ST-DARDS is a convenient tool for an operational organisation such as SKB where few persons have to be able to perform multiple types of analysis as it offers an automated way of running calculations with high quality through a graphical interface for non-experts. The easily accessible data and analysis capability encourage staff to investigate more which can lead to optimization of the whole system. (authors)
Primary Subject
Secondary Subject
Source
2019; 7 p; ICNC 2019 - 11. international conference on nuclear criticality safety; Paris (France); 15-20 Sep 2019; 5 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue