Matches in SemOpenAlex for { <https://semopenalex.org/work/W133461147> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W133461147 abstract "This paper discusses the results of flux performance and the core lifetime analyses for conversion of an MNSR core using LEU-UO{sub 2} fuel containing uranium with 12.5% enrichment. Detailed MCNP5 models were used to evaluate the flux performance. Diffusion theory REBUS-3 models were used to estimate fuel depletion rates under various operational schemes and to simulate the long-term fuel depletion history. Core lifetimes were estimated under realistic operational constraints. This study found a reduction of 7-10% in thermal neutron flux in the irradiation channels for the LEU-UO{sub 2} fuel in comparison with the HEU fuel. Therefore, for an LEU fueled core, the reactor power would have to be increased by {approx}10% from the current level of 30 kW in order to match the nominal flux level. MNSRs have a very small window of excess reactivity for operation and are designed for a very short operational cycle to avoid excessive xenon buildup. Consequently, fuel depletion calculations need to be performed using realistic operational constraints. As fuel depletes, top Be shim plates are added periodically to restore the excess reactivity for continuing operation. The maximum allowed excess reactivity at the beginning of each operating cycle is 4 mk. This study concludes thatmore » an MNSR core with LEU UO{sub 2}-12.5% fuel and a power level of 33 kW can be operated {approx}25% longer than the current HEU core operated at 30 kW. Both cores will have the same thermal neutron flux in the experiment positions. (author)« less" @default.
- W133461147 created "2016-06-24" @default.
- W133461147 creator A5011555031 @default.
- W133461147 creator A5065510316 @default.
- W133461147 date "2008-07-15" @default.
- W133461147 modified "2023-09-27" @default.
- W133461147 title "MNSR flux performance and core lifetime analysis with HEU and LEU fuels" @default.
- W133461147 hasPublicationYear "2008" @default.
- W133461147 type Work @default.
- W133461147 sameAs 133461147 @default.
- W133461147 citedByCount "1" @default.
- W133461147 countsByYear W1334611472016 @default.
- W133461147 crossrefType "journal-article" @default.
- W133461147 hasAuthorship W133461147A5011555031 @default.
- W133461147 hasAuthorship W133461147A5065510316 @default.
- W133461147 hasConcept C116915560 @default.
- W133461147 hasConcept C121332964 @default.
- W133461147 hasConcept C127413603 @default.
- W133461147 hasConcept C152568617 @default.
- W133461147 hasConcept C153385146 @default.
- W133461147 hasConcept C153454851 @default.
- W133461147 hasConcept C159985019 @default.
- W133461147 hasConcept C185544564 @default.
- W133461147 hasConcept C185592680 @default.
- W133461147 hasConcept C191897082 @default.
- W133461147 hasConcept C192562407 @default.
- W133461147 hasConcept C2164484 @default.
- W133461147 hasConcept C2778260006 @default.
- W133461147 hasConcept C37750225 @default.
- W133461147 hasConcept C39432304 @default.
- W133461147 hasConcept C555451288 @default.
- W133461147 hasConcept C68709404 @default.
- W133461147 hasConcept C80559505 @default.
- W133461147 hasConcept C81988546 @default.
- W133461147 hasConceptScore W133461147C116915560 @default.
- W133461147 hasConceptScore W133461147C121332964 @default.
- W133461147 hasConceptScore W133461147C127413603 @default.
- W133461147 hasConceptScore W133461147C152568617 @default.
- W133461147 hasConceptScore W133461147C153385146 @default.
- W133461147 hasConceptScore W133461147C153454851 @default.
- W133461147 hasConceptScore W133461147C159985019 @default.
- W133461147 hasConceptScore W133461147C185544564 @default.
- W133461147 hasConceptScore W133461147C185592680 @default.
- W133461147 hasConceptScore W133461147C191897082 @default.
- W133461147 hasConceptScore W133461147C192562407 @default.
- W133461147 hasConceptScore W133461147C2164484 @default.
- W133461147 hasConceptScore W133461147C2778260006 @default.
- W133461147 hasConceptScore W133461147C37750225 @default.
- W133461147 hasConceptScore W133461147C39432304 @default.
- W133461147 hasConceptScore W133461147C555451288 @default.
- W133461147 hasConceptScore W133461147C68709404 @default.
- W133461147 hasConceptScore W133461147C80559505 @default.
- W133461147 hasConceptScore W133461147C81988546 @default.
- W133461147 hasLocation W1334611471 @default.
- W133461147 hasOpenAccess W133461147 @default.
- W133461147 hasPrimaryLocation W1334611471 @default.
- W133461147 hasRelatedWork W154217476 @default.
- W133461147 hasRelatedWork W1976058967 @default.
- W133461147 hasRelatedWork W1980544339 @default.
- W133461147 hasRelatedWork W2018238120 @default.
- W133461147 hasRelatedWork W2060184 @default.
- W133461147 hasRelatedWork W2383756096 @default.
- W133461147 hasRelatedWork W2546182535 @default.
- W133461147 hasRelatedWork W2564739243 @default.
- W133461147 hasRelatedWork W2884240775 @default.
- W133461147 hasRelatedWork W2914492924 @default.
- W133461147 hasRelatedWork W2926009895 @default.
- W133461147 hasRelatedWork W2934136737 @default.
- W133461147 hasRelatedWork W2978040694 @default.
- W133461147 hasRelatedWork W3008340605 @default.
- W133461147 hasRelatedWork W3081331137 @default.
- W133461147 hasRelatedWork W3083861294 @default.
- W133461147 hasRelatedWork W3097814090 @default.
- W133461147 hasRelatedWork W3134489318 @default.
- W133461147 hasRelatedWork W3138726487 @default.
- W133461147 hasRelatedWork W185891834 @default.
- W133461147 isParatext "false" @default.
- W133461147 isRetracted "false" @default.
- W133461147 magId "133461147" @default.
- W133461147 workType "article" @default.