FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2009624249> ?p ?o ?g. }

• W2009624249 abstract "The elimination of severe power excursion during core disruptive accidents is a key issue for the enhanced safety of sodium-cooled fast reactors. In order to prevent the formation of a large-scale molten fuel pool within a reactor core, which is one of the factors leading to the severe power excursion, the Japan Atomic Energy Agency (JAEA) is considering the introduction of fuel assembly with inner duct structure (FAIDUS). In the current reference design for FAIDUS, the top end of the inner duct is open, whereas the bottom end is closed, and therefore it is expected that the molten fuel will be discharged from the reactor core towards the upper sodium plenum through the inner duct. The objective of the present study is to clarify the fundamental mechanism for upward fuel discharge through the inner duct structure, and thereby to confirm the effectiveness of FAIDUS. The possibility of upward discharge of a high-density melt driven by coolant vapor has been confirmed by the JAEA's experiment, in which molten Wood's metal simulating the molten fuel was injected into a coolant channel (equivalent inner diameter: 30 mm, total height: 2 m, fluid content: water) simulating the inner duct structure. In this paper, the mechanism of upward discharge of a high-density melt driven by coolant vapor pressure and/or flow in this experiment is discussed in terms of the application to reactor conditions. Through this discussion, the following mechanisms were clarified. (1) Coolant vapor pressure is built up within the coolant channel after the melt injection. The magnitude of the pressure buildup becomes larger with the increase of melt-enthalpy-injection rate, which is defined by the product of melt-mass-injection rate into the coolant channel and melt specific enthalpy. (2) Following the pressure buildup, the melt is discharged upward, being driven by the coolant vapor flow directing towards the top opening end of the coolant channel. The upward discharge mass rate becomes higher with the increase of the magnitude of the pressure buildup and, therefore, the melt-enthalpy-injection rate. The experimental knowledge obtained from the JAEA's experiment suggests that the coolant pressure buildup could act as one of the driving forces for the upward discharge of a high-density melt through the inner duct structure in FAIDUS under reactor conditions with higher melt-enthalpy-injection rate than the current simulant experimental condition." @default.
• W2009624249 created "2016-06-24" @default.
• W2009624249 creator A5010926464 @default.
• W2009624249 creator A5014124616 @default.
• W2009624249 creator A5067735532 @default.
• W2009624249 creator A5070599247 @default.
• W2009624249 date "2013-02-21" @default.
• W2009624249 modified "2023-09-27" @default.
• W2009624249 title "Mechanism of Upward Fuel Discharge During Core Disruptive Accidents in Sodium-Cooled Fast Reactors" @default.
• W2009624249 cites W1973589504 @default.
• W2009624249 cites W2015315218 @default.
• W2009624249 cites W2075037834 @default.
• W2009624249 cites W2180247603 @default.
• W2009624249 doi "https://doi.org/10.1115/1.4007870" @default.
• W2009624249 hasPublicationYear "2013" @default.
• W2009624249 type Work @default.
• W2009624249 sameAs 2009624249 @default.
• W2009624249 citedByCount "2" @default.
• W2009624249 countsByYear W20096242492014 @default.
• W2009624249 countsByYear W20096242492016 @default.
• W2009624249 crossrefType "journal-article" @default.
• W2009624249 hasAuthorship W2009624249A5010926464 @default.
• W2009624249 hasAuthorship W2009624249A5014124616 @default.
• W2009624249 hasAuthorship W2009624249A5067735532 @default.
• W2009624249 hasAuthorship W2009624249A5070599247 @default.
• W2009624249 hasConcept C116915560 @default.
• W2009624249 hasConcept C121332964 @default.
• W2009624249 hasConcept C127413603 @default.
• W2009624249 hasConcept C142724271 @default.
• W2009624249 hasConcept C159985019 @default.
• W2009624249 hasConcept C179498184 @default.
• W2009624249 hasConcept C192562407 @default.
• W2009624249 hasConcept C2776060589 @default.
• W2009624249 hasConcept C2778492893 @default.
• W2009624249 hasConcept C2780013297 @default.
• W2009624249 hasConcept C2781212128 @default.
• W2009624249 hasConcept C37750225 @default.
• W2009624249 hasConcept C40336117 @default.
• W2009624249 hasConcept C548081761 @default.
• W2009624249 hasConcept C57879066 @default.
• W2009624249 hasConcept C71924100 @default.
• W2009624249 hasConcept C72782756 @default.
• W2009624249 hasConcept C78519656 @default.
• W2009624249 hasConcept C91914117 @default.
• W2009624249 hasConceptScore W2009624249C116915560 @default.
• W2009624249 hasConceptScore W2009624249C121332964 @default.
• W2009624249 hasConceptScore W2009624249C127413603 @default.
• W2009624249 hasConceptScore W2009624249C142724271 @default.
• W2009624249 hasConceptScore W2009624249C159985019 @default.
• W2009624249 hasConceptScore W2009624249C179498184 @default.
• W2009624249 hasConceptScore W2009624249C192562407 @default.
• W2009624249 hasConceptScore W2009624249C2776060589 @default.
• W2009624249 hasConceptScore W2009624249C2778492893 @default.
• W2009624249 hasConceptScore W2009624249C2780013297 @default.
• W2009624249 hasConceptScore W2009624249C2781212128 @default.
• W2009624249 hasConceptScore W2009624249C37750225 @default.
• W2009624249 hasConceptScore W2009624249C40336117 @default.
• W2009624249 hasConceptScore W2009624249C548081761 @default.
• W2009624249 hasConceptScore W2009624249C57879066 @default.
• W2009624249 hasConceptScore W2009624249C71924100 @default.
• W2009624249 hasConceptScore W2009624249C72782756 @default.
• W2009624249 hasConceptScore W2009624249C78519656 @default.
• W2009624249 hasConceptScore W2009624249C91914117 @default.
• W2009624249 hasIssue "3" @default.
• W2009624249 hasLocation W20096242491 @default.
• W2009624249 hasOpenAccess W2009624249 @default.
• W2009624249 hasPrimaryLocation W20096242491 @default.
• W2009624249 hasRelatedWork W110235843 @default.
• W2009624249 hasRelatedWork W1515721086 @default.
• W2009624249 hasRelatedWork W2009624249 @default.
• W2009624249 hasRelatedWork W2060784501 @default.
• W2009624249 hasRelatedWork W2889926771 @default.
• W2009624249 hasRelatedWork W2898493428 @default.
• W2009624249 hasRelatedWork W2997530253 @default.
• W2009624249 hasRelatedWork W3191124772 @default.
• W2009624249 hasRelatedWork W4321381965 @default.
• W2009624249 hasRelatedWork W2180239904 @default.
• W2009624249 hasVolume "135" @default.
• W2009624249 isParatext "false" @default.
• W2009624249 isRetracted "false" @default.
• W2009624249 magId "2009624249" @default.
• W2009624249 workType "article" @default.