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FUEL KERNEL [4 records]
Record 1 - internal organization data 2010-04-14
Record 1, English
Record 1, Subject field(s)
- Combustion and Fuels (Fireplaces)
- Nuclear Fission Reactors
Record 1, Main entry term, English
- TRISO coating
1, record 1, English, TRISO%20coating
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
[High-Temperature Gas Reactors]. Two types of advanced coated fuel particles have been developed : TRISO refractory coated particle fuel and BISO. A TRISO coating contains three types of coating layers : low density pyrocarbon around the kernel to act as a buffer, and surrounding layers of silicon-carbide(SiC) and high-density isotopic pyrocarbon that retains the fission products. 2, record 1, English, - TRISO%20coating
Record 1, French
Record 1, Domaine(s)
- Combustion et combustibles (Foyers)
- Réacteurs nucléaires de fission
Record 1, Main entry term, French
- enrobage TRISO
1, record 1, French, enrobage%20TRISO
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- enrobage triso 2, record 1, French, enrobage%20triso
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Le projet Dragon et les projets de l'industrie britannique (travaux de Harwell) ont utilisé un cycle de combustible ne faisant appel qu'à l'uranium. Dans ce cas, une particule unique a été développée, avec un noyau d'oxyde d'uranium enrichi (de 6 à 10 %) de 800 µm de diamètre et un enrobage à trois types de couches dit triso). De l'intérieur vers l'extérieur, elle présente une couche peu dense de carbone pyrolytique, deux couches denses de carbone pyrolytique séparées par une couche de carbure de silicium. Le carbone pyrolytique interne, très poreux, sert de réservoir aux gaz de fission et de tampon, en protégeant les couches résistantes externes des phénomènes physiques et chimiques naissant dans le noyau. Le carbure de silicium assure l'étanchéité aux produits de fission solides qui sont capables de migrer au travers du carbone pyrolytique. Le carbone pyrolytique dense résiste à la pression des gaz de fission. 2, record 1, French, - enrobage%20TRISO
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2009-10-16
Record 2, English
Record 2, Subject field(s)
- Properties of Fuels
- Nuclear Fission Reactors
Record 2, Main entry term, English
- coated particle fuel
1, record 2, English, coated%20particle%20fuel
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The coated particle fuels have been designed in the past for "high temperature reactors"(HTR). The interesting aspects of such fuel are :(i) the good thermal exchange between the gas coolant and the fuel as a result of the small fuel particles, and(ii) the retention of the fission products within the particle as a result of the tight coatings surrounding the fissile kernel flux conditions. 1, record 2, English, - coated%20particle%20fuel
Record 2, French
Record 2, Domaine(s)
- Propriétés des combustibles
- Réacteurs nucléaires de fission
Record 2, Main entry term, French
- combustible à particules enrobées
1, record 2, French, combustible%20%C3%A0%20particules%20enrob%C3%A9es
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-10-11
Record 3, English
Record 3, Subject field(s)
- Combustion and Fuels (Fireplaces)
- Nuclear Fission Reactors
Record 3, Main entry term, English
- graphite core fuel
1, record 3, English, graphite%20core%20fuel
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Graphite core fuel elements. This kind of fuel element has the same geometry as the tubular fuel and the two are interchangeable, but the new version is different in 2 respects :-the graphite kernel from the casting process has been left inside the 43 x 23 mm uranium tube(whence its name "graphite core fuel element"). 1, record 3, English, - graphite%20core%20fuel
Record 3, French
Record 3, Domaine(s)
- Combustion et combustibles (Foyers)
- Réacteurs nucléaires de fission
Record 3, Main entry term, French
- combustible à âme graphite
1, record 3, French, combustible%20%C3%A0%20%C3%A2me%20graphite
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
L'usine UP1, qui a repris en 1987 la suite d'UP2, disposait dans son atelier MAR 400 de deux lignes de traitement, l'une réservée aux combustibles à âme graphite où sont effectués le déqueusotage, le dégraphitage par de l'eau à 800 bar et le dégainage mécanique au travers d'une filière, et l'autre réservée aux combustibles annulaires du Bugey. 1, record 3, French, - combustible%20%C3%A0%20%C3%A2me%20graphite
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2009-10-10
Record 4, English
Record 4, Subject field(s)
- Nuclear Physics
- Properties of Fuels
Record 4, Main entry term, English
- fuel kernel
1, record 4, English, fuel%20kernel
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
TRISO-Tristructural isotropic fuel, a type of micro fuel particle consisting of a fuel kernel composed of uranium oxide(sometimes uranium carbide) in the center, coated with four layers of three isotropic materials. 2, record 4, English, - fuel%20kernel
Record 4, French
Record 4, Domaine(s)
- Physique nucléaire
- Propriétés des combustibles
Record 4, Main entry term, French
- noyau combustible
1, record 4, French, noyau%20combustible
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
La conception de la particule fissile retenue par la plupart des fabricants dans le monde est celle de la particule de type «TRISO» (pour TRistructural ISOtropic) composée d'un noyau combustible (le plus souvent d'UO2) sphérique (de 100 à 800 [micromoles] de diamètre), assurant la puissance désirée mais aussi ayant pour qualité de retenir autant que faire se peut ses produits de fission, confiné par un sandwich de trois couches de céramiques denses : une couche de carbure de silicium entre deux couches de pyrocarbone. 1, record 4, French, - noyau%20combustible
Record 4, Spanish
Record 4, Textual support, Spanish
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