onr:"swepub:oai:research.chalmers.se:26a8b105-f26b-4f58-92d6-bce7ad1501ff"
Sökning: onr:"swepub:oai:research.chalmers.se:26a8b105-f26b-4f58-92d6-bce7ad1501ff" > Understanding the n...
- 1 av 1
- Föregående post
- Nästa post
- Till träfflistan
- Demaziere, Christophe,1973Chalmers tekniska högskola,Chalmers University of Technology (författare)
Understanding the neutron noise induced by fuel assembly vibrations in linear theory
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
- Elsevier BV,2022
- electronicrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:research.chalmers.se:26a8b105-f26b-4f58-92d6-bce7ad1501ff
- https://research.chalmers.se/publication/530521URI
- https://doi.org/10.1016/j.anucene.2022.109169DOI
Kompletterande språkuppgifter
- Språk:engelska
- Sammanfattning på:engelska
Ingår i deldatabas
- SwePubSwePub
Klassifikation
Anmärkningar
- This paper investigates the underlying physical mechanisms involved in the monochromatic vibrations of fuel assemblies and their effects on the induced neutron noise throughout the core of nuclear reactors, in the framework of simplified benchmark configurations. Any vibrating fuel pin introduces noise sources at the frequency of vibrations, as well as at higher harmonics, the first one being the most significant of those. Depending on the harmonics considered, the position of the vibrating fuel pin, the size of the core and its macroscopic cross-sections, different noise responses are observed within the reactor core. Through the lens of a decomposition of the neutron noise into its point-kinetics component and its deviation from it, the spectrum of noise responses is explained and related to the spatial distribution of the amplitude and phase of the noise sources at the considered frequencies. At the frequency of vibration, possible out-of-phase behaviour of the induced neutron noise can be partially or totally shadowed by the in-phase point-kinetics component, the only exception being for central vibrations in symmetrical systems. At the frequency of the first higher harmonics, the structure of the induced neutron noise is more involved. Nevertheless, due to the compensation of the individual responses associated to the different components of the noise source at that frequency, point-kinetics has a significant contribution. The results of this work sheds new light on the complex spatial pattern of the neutron noise computed by realistic core simulators in case of vibrations of fuel assemblies.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Fysik Annan fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Other Physics Topics hsv//eng
- point-kinetics
- neutron noise
- fuel assembly vibration
- deviation from point-kinetics
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Rouchon, AmélieUniversité Paris-Saclay,University Paris-Saclay (författare)
- Zoia, AndreaUniversité Paris-Saclay,University Paris-Saclay (författare)
- Chalmers tekniska högskolaUniversité Paris-Saclay (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Annals of Nuclear Energy: Elsevier BV1750306-45491873-2100
Internetlänk
Hitta via bibliotek
- Annals of Nuclear Energy (Sök värdpublikationen i LIBRIS)
Till lärosätets databas
- 1 av 1
- Föregående post
- Nästa post
- Till träfflistan
Hitta mer i SwePub
- Av författaren/redakt...
- Demaziere, Chris ...
- Rouchon, Amélie
- Zoia, Andrea
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Fysik
- och Annan fysik
- Artiklar i publikationen
- Annals of Nuclea ...
- Av lärosätet
- Chalmers tekniska högskola
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
