Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022705637> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W2022705637 endingPage "1183" @default.
- W2022705637 startingPage "1170" @default.
- W2022705637 abstract "For the development of new acceptance criteria for the analysis of Rod-Ejection-Accidents (REA) in Pressurized Water Reactor UO2 cores, full-width-at-half-maximum power pulse widths in the range 25–40 ms were employed in the analytical transient fuel behaviour studies. Due to the operation of MOX cores in Switzerland, a study using the CORETRAN 3D kinetics code was carried out at PSI to investigate and compare on the basis of real operated cycles MOX and UO2 cores, the pulse width magnitude as function of rod reactivity for postulated super-prompt critical REAs. This study is presented in a first part of this paper. Thereafter, to quantify the variation in pulse width when applying a different 3D kinetic solver, a benchmarking with the SIMULATE-3K code is carried out. This code-to-code comparison aims also to serve as an assessment of SIMULATE-3K for REA analyses of the Swiss cores since only CORETRAN had so far been benchmarked at PSI for this type of applications. Finally, to provide confidence in the results, particularly for pulse widths below 25 ms, sensitivity studies are performed to assess the effects of specific modelling options and assumptions applied in the REA 3D kinetic analysis and to compare the sensitivities between UO2 and MOX cores. On the basis of all these studies, it is found that the MOX core pulse width is usually around 5 to 10 ms lower than for UO2 cores. For rod worths close to 2.0$, corresponding to around 500 pcm above prompt criticality and which was obtained for many of the investigated MOX cycles particularly at end-of-cycle conditions, a representative MOX pulse width magnitude is found to be around 15 ms. To shortly address the applicability of these results, i.e. obtained for very specific MOX cores, additional calculations were performed for hypothetical cases with increased MOX core fractions and with higher MOX assembly Pu enrichments. And it was found that even for these types of cores, the pulse width would, although being slightly reduced, remain in the range 10–15 ms for rod reactivities up to 500 pcm above prompt criticality." @default.
- W2022705637 created "2016-06-24" @default.
- W2022705637 creator A5037725633 @default.
- W2022705637 creator A5064427990 @default.
- W2022705637 date "2009-08-01" @default.
- W2022705637 modified "2023-09-27" @default.
- W2022705637 title "Study of the PWR REA pulse width for realistic UO2 and MOX core designs using 3D kinetics methods" @default.
- W2022705637 cites W14500429 @default.
- W2022705637 cites W1565103428 @default.
- W2022705637 cites W1826040173 @default.
- W2022705637 cites W1995111967 @default.
- W2022705637 cites W2034071332 @default.
- W2022705637 cites W2089471885 @default.
- W2022705637 cites W2297965362 @default.
- W2022705637 cites W32505946 @default.
- W2022705637 cites W2739689658 @default.
- W2022705637 doi "https://doi.org/10.1016/j.anucene.2009.04.007" @default.
- W2022705637 hasPublicationYear "2009" @default.
- W2022705637 type Work @default.
- W2022705637 sameAs 2022705637 @default.
- W2022705637 citedByCount "2" @default.
- W2022705637 crossrefType "journal-article" @default.
- W2022705637 hasAuthorship W2022705637A5037725633 @default.
- W2022705637 hasAuthorship W2022705637A5064427990 @default.
- W2022705637 hasConcept C111919701 @default.
- W2022705637 hasConcept C116915560 @default.
- W2022705637 hasConcept C120665830 @default.
- W2022705637 hasConcept C121332964 @default.
- W2022705637 hasConcept C127413603 @default.
- W2022705637 hasConcept C159985019 @default.
- W2022705637 hasConcept C191897082 @default.
- W2022705637 hasConcept C192562407 @default.
- W2022705637 hasConcept C2164484 @default.
- W2022705637 hasConcept C2780167933 @default.
- W2022705637 hasConcept C2780799671 @default.
- W2022705637 hasConcept C41008148 @default.
- W2022705637 hasConcept C555451288 @default.
- W2022705637 hasConcept C57879066 @default.
- W2022705637 hasConcept C8138999 @default.
- W2022705637 hasConcept C94915269 @default.
- W2022705637 hasConceptScore W2022705637C111919701 @default.
- W2022705637 hasConceptScore W2022705637C116915560 @default.
- W2022705637 hasConceptScore W2022705637C120665830 @default.
- W2022705637 hasConceptScore W2022705637C121332964 @default.
- W2022705637 hasConceptScore W2022705637C127413603 @default.
- W2022705637 hasConceptScore W2022705637C159985019 @default.
- W2022705637 hasConceptScore W2022705637C191897082 @default.
- W2022705637 hasConceptScore W2022705637C192562407 @default.
- W2022705637 hasConceptScore W2022705637C2164484 @default.
- W2022705637 hasConceptScore W2022705637C2780167933 @default.
- W2022705637 hasConceptScore W2022705637C2780799671 @default.
- W2022705637 hasConceptScore W2022705637C41008148 @default.
- W2022705637 hasConceptScore W2022705637C555451288 @default.
- W2022705637 hasConceptScore W2022705637C57879066 @default.
- W2022705637 hasConceptScore W2022705637C8138999 @default.
- W2022705637 hasConceptScore W2022705637C94915269 @default.
- W2022705637 hasIssue "8" @default.
- W2022705637 hasLocation W20227056371 @default.
- W2022705637 hasOpenAccess W2022705637 @default.
- W2022705637 hasPrimaryLocation W20227056371 @default.
- W2022705637 hasRelatedWork W1586479194 @default.
- W2022705637 hasRelatedWork W2030353345 @default.
- W2022705637 hasRelatedWork W2053428146 @default.
- W2022705637 hasRelatedWork W2372896454 @default.
- W2022705637 hasRelatedWork W2623825728 @default.
- W2022705637 hasRelatedWork W2887682480 @default.
- W2022705637 hasRelatedWork W3014333255 @default.
- W2022705637 hasRelatedWork W3194756093 @default.
- W2022705637 hasRelatedWork W4241616417 @default.
- W2022705637 hasRelatedWork W976196989 @default.
- W2022705637 hasVolume "36" @default.
- W2022705637 isParatext "false" @default.
- W2022705637 isRetracted "false" @default.
- W2022705637 magId "2022705637" @default.
- W2022705637 workType "article" @default.