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FUEL PIN [10 records]
Record 1 - internal organization data 2017-04-20
Record 1, English
Record 1, Subject field(s)
- Nuclear Plant Safety
Record 1, Main entry term, English
- ex-vessel explosion
1, record 1, English, ex%2Dvessel%20explosion
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- ex-vessel steam explosion 1, record 1, English, ex%2Dvessel%20steam%20explosion
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
An ex-vessel steam explosion may occur if the primary system is breached by hot debris. Debris in the reactor outlet piping may fail the piping and fall onto the pump room floor or debris on the reactor vessel bottom may be blocked from flowing into the outlet piping if it freezes in the effluent piping nozzle muff structure. If this occurs, the debris will heat up on the reactor vessel bottom and eventually fail the bottom shield. The likely mode of failure of the bottom shield is collapse of the shield as a whole. If it collapses, the entire shield, as well as the molten debris, will fall into the pin room below the reactor vessel. The debris will then flow across the floor into the pump room. In either event, a large portion of the reactor fuel inventory will be deposited on the pump room floor. The pump room floor will be covered with water in many scenarios. A steam explosion may result when the debris enters this water. 1, record 1, English, - ex%2Dvessel%20explosion
Record 1, French
Record 1, Domaine(s)
- Sûreté des centrales nucléaires
Record 1, Main entry term, French
- explosion hors cuve
1, record 1, French, explosion%20hors%20cuve
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- explosion de vapeur hors cuve 2, record 1, French, explosion%20de%20vapeur%20hors%20cuve
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La condition nécessaire à une explosion vapeur est le simple contact entre les deux fluides, mais les situations les plus énergétiques sont celles où les deux fluides sont mélangés avant que ne se déclenche la fragmentation. Dans les réacteurs à eau pressurisée de tels mélanges pourraient se former après la fusion du cœur lors de la relocalisation du corium en fond de cuve (explosion en cuve) et/ou éventuellement lors de la percée de la cuve et la chute du corium dans le puits de cuve (explosion hors cuve). 1, record 1, French, - explosion%20hors%20cuve
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2016-11-30
Record 2, English
Record 2, Subject field(s)
- Scientific Instruments
- Nuclear Fission Reactors
Record 2, Main entry term, English
- hot spot factor
1, record 2, English, hot%20spot%20factor
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
- hot-spot factor 2, record 2, English, hot%2Dspot%20factor
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The ratio of the maximum heat flux to the average heat flux in a nuclear reactor. [Definition standardized by ISO.] 1, record 2, English, - hot%20spot%20factor
Record number: 2, Textual support number: 1 CONT
Hot-Spot Factor. The maximum value of FQ occurs where the local power density or linear heat rate is greatest. It is referred to as the hot-spot factor because of the relationship to maximum temperatures in a fuel pin. The hot-spot factor limits are set to prevent : 1. melting of fuel; 2. cladding-coolant interactions following loss of cooling capability. 2, record 2, English, - hot%20spot%20factor
Record number: 2, Textual support number: 1 OBS
hot spot factor: term standardized by ISO. 3, record 2, English, - hot%20spot%20factor
Record 2, French
Record 2, Domaine(s)
- Instruments scientifiques
- Réacteurs nucléaires de fission
Record 2, Main entry term, French
- facteur de point chaud
1, record 2, French, facteur%20de%20point%20chaud
correct, masculine noun, standardized
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Rapport du flux calorifique maximal au flux calorifique moyen dans l'ensemble d'un réacteur nucléaire. [Définition normalisée par l'ISO.] 2, record 2, French, - facteur%20de%20point%20chaud
Record number: 2, Textual support number: 1 OBS
facteur de point chaud : terme normalisé par l'ISO. 3, record 2, French, - facteur%20de%20point%20chaud
Record number: 2, Textual support number: 2 OBS
facteur de point chaud : terme extrait du «Glossaire de l’énergie nucléaire» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques. 3, record 2, French, - facteur%20de%20point%20chaud
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2016-11-30
Record 3, English
Record 3, Subject field(s)
- Nuclear Fission Reactors
- Nuclear Power Stations
Record 3, Main entry term, English
- fuel pin
1, record 3, English, fuel%20pin
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- pin 2, record 3, English, pin
correct, noun
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A compact fuel rod of very small diameter. 3, record 3, English, - fuel%20pin
Record number: 3, Textual support number: 1 CONT
The core [of a reactor] can contain hundreds of thousands of individual fuel pins.... The smallest unit of the reactor is the fuel pin. 4, record 3, English, - fuel%20pin
Record number: 3, Textual support number: 1 OBS
fuel pin : term extracted from the “Glossaire de l'énergie nucléaire” and reproduced with permission of the Organisation for Economic Co-operation and Development. 5, record 3, English, - fuel%20pin
Record 3, French
Record 3, Domaine(s)
- Réacteurs nucléaires de fission
- Centrales nucléaires
Record 3, Main entry term, French
- aiguille de combustible
1, record 3, French, aiguille%20de%20combustible
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- aiguille combustible 2, record 3, French, aiguille%20combustible
correct, feminine noun
- aiguille 3, record 3, French, aiguille
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Crayon [combustible] utilisé dans le cœur d’un réacteur à neutrons rapides. 4, record 3, French, - aiguille%20de%20combustible
Record number: 3, Textual support number: 1 OBS
aiguille : terme et définition publiés au Journal officiel de la République française le 21 décembre 2013. 5, record 3, French, - aiguille%20de%20combustible
Record number: 3, Textual support number: 2 OBS
aiguille de combustible : terme extrait du «Glossaire de l’énergie nucléaire» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques. 5, record 3, French, - aiguille%20de%20combustible
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2016-11-30
Record 4, English
Record 4, Subject field(s)
- Scientific Instruments
- Nuclear Fission Reactors
Record 4, Main entry term, English
- hot spot factor
1, record 4, English, hot%20spot%20factor
correct, standardized
Record 4, Abbreviations, English
Record 4, Synonyms, English
- hot-spot factor 2, record 4, English, hot%2Dspot%20factor
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Ratio of the maximum heat flux to the average heat flux in a nuclear reactor. 1, record 4, English, - hot%20spot%20factor
Record number: 4, Textual support number: 1 CONT
Hot-Spot Factor. The maximum value of FQ occurs where the local power density ofr linear heat rate is greatest. It is referred to as the hot-spot factor because of the relationship to maximum temperatures in a fuel pin. The hot-spot factor limits are set to prevent : 1. melting of fuel; 2. cladding-coolant interactions following loss of cooling capability. 2, record 4, English, - hot%20spot%20factor
Record number: 4, Textual support number: 1 OBS
hot spot factor: term and definition standardized by ISO. 3, record 4, English, - hot%20spot%20factor
Record 4, French
Record 4, Domaine(s)
- Instruments scientifiques
- Réacteurs nucléaires de fission
Record 4, Main entry term, French
- facteur de sécurité au point chaud
1, record 4, French, facteur%20de%20s%C3%A9curit%C3%A9%20au%20point%20chaud
correct, masculine noun, standardized
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Rapport du flux calorifique maximal au flux calorifique moyen dans l’ensemble d’un réacteur nucléaire. 2, record 4, French, - facteur%20de%20s%C3%A9curit%C3%A9%20au%20point%20chaud
Record number: 4, Textual support number: 1 OBS
facteur de sécurité au point chaud : terme et définition normalisés par l'ISO. 3, record 4, French, - facteur%20de%20s%C3%A9curit%C3%A9%20au%20point%20chaud
Record number: 4, Textual support number: 2 OBS
facteur de sécurité au point chaud : terme extrait du «Glossaire de l’énergie nucléaire» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques. 3, record 4, French, - facteur%20de%20s%C3%A9curit%C3%A9%20au%20point%20chaud
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2014-07-31
Record 5, English
Record 5, Subject field(s)
- Thermonuclear fusion
- Nuclear Fission Reactors
Record 5, Main entry term, English
- dryout
1, record 5, English, dryout
correct, standardized
Record 5, Abbreviations, English
Record 5, Synonyms, English
- dry-out 2, record 5, English, dry%2Dout
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The boiling on a heated surface with a deficiency of a liquid in the whole coolant channel and hence also near the surface. 3, record 5, English, - dryout
Record number: 5, Textual support number: 1 OBS
[This] phenomenon [causes] the production of an insulating vapour layer which keeps the coolant away from the hot surface to be cooled, such as the cladding of a fuel pin. 2, record 5, English, - dryout
Record number: 5, Textual support number: 2 OBS
dryout: term and definition standardized by ISO in 1997. 4, record 5, English, - dryout
Record 5, French
Record 5, Domaine(s)
- Fusion thermonucléaire
- Réacteurs nucléaires de fission
Record 5, Main entry term, French
- assèchement
1, record 5, French, ass%C3%A8chement
correct, masculine noun, standardized
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Ébullition sur une surface chauffée entraînant un manque de liquide dans la totalité du canal de refroidissement et par suite également près de la surface. 2, record 5, French, - ass%C3%A8chement
Record number: 5, Textual support number: 1 OBS
assèchement : terme publié au Journal officiel de la République française le 22 septembre 2000. 3, record 5, French, - ass%C3%A8chement
Record number: 5, Textual support number: 2 OBS
assèchement : terme et définition normalisés par l'ISO en 1997. 3, record 5, French, - ass%C3%A8chement
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2014-04-25
Record 6, English
Record 6, Subject field(s)
- Nuclear Fission Reactors
Record 6, Main entry term, English
- spacer wire
1, record 6, English, spacer%20wire
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- spacing wire 2, record 6, English, spacing%20wire
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
A nuclear fuel pin for a fast reactor comprising a can closed by end-plugs and containing a column of pellets of fissile material, the fuel pin being fitted with a spacer wire which is helically wound on the can and the extremities of which are attached to the end-plugs. 3, record 6, English, - spacer%20wire
Record 6, French
Record 6, Domaine(s)
- Réacteurs nucléaires de fission
Record 6, Main entry term, French
- fil espaceur
1, record 6, French, fil%20espaceur
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Fil métallique enroulé en hélice autour de chacune des aiguilles du cœur d’un réacteur à neutrons rapides pour éviter le contact entre ces aiguilles et permettre la circulation du caloporteur. 2, record 6, French, - fil%20espaceur
Record number: 6, Textual support number: 1 OBS
fil espaceur : terme et définition publiés au Journal officiel de la République française le 21 décembre 2013. 3, record 6, French, - fil%20espaceur
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2011-12-21
Record 7, English
Record 7, Subject field(s)
- Nuclear Fission Reactors
Record 7, Main entry term, English
- fissile column
1, record 7, English, fissile%20column
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
pellet : a cylindrical fuel element, made from ceramic, a stack of which, inside the cladding tube, forms the fissile column(in a rod, or pin), in a reactor. Pellets are obtained, for most current reactors, through compaction of uranium oxide(UOX) powder, or mixed uranium and plutonium oxide(MOX) powder. 1, record 7, English, - fissile%20column
Record 7, French
Record 7, Domaine(s)
- Réacteurs nucléaires de fission
Record 7, Main entry term, French
- colonne fissile
1, record 7, French, colonne%20fissile
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Aiguille (crayon). Constituée d’une gaine d’acier austénitique au titane de diamètre extérieur 8,5 mm, d’épaisseur 0,56 mm et de longueur totale 2 700 mm fermée par deux bouchons, l’aiguille combustible contient : — les pastilles d’oxyde mixte UO2-PuO2 constituant la colonne fissile de 1 000 mm; — les pastilles d’UO2 (appauvri) constituant les deux colonnes fertiles de 300 mm de part et d’autre de la colonne fissile […] 1, record 7, French, - colonne%20fissile
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2011-10-03
Record 8, English
Record 8, Subject field(s)
- Nuclear Physics
Record 8, Main entry term, English
- spatial self-shielding
1, record 8, English, spatial%20self%2Dshielding
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
The Doppler temperature effect in a thermal reactor is driven by238U absorption. There is considerable spatial self-shielding of the238U absorption and much of the absorption occurs near the surface of the fuel pin, where the temperatures are lowest in steady state. 2, record 8, English, - spatial%20self%2Dshielding
Record 8, Key term(s)
- spatial self shielding
Record 8, French
Record 8, Domaine(s)
- Physique nucléaire
Record 8, Main entry term, French
- autoprotection en espace
1, record 8, French, autoprotection%20en%20espace
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Intérêt d’une disposition hétérogène (autoprotection en espace). La structure hétérogène adoptée pour des raisons technologiques dans les réacteurs a aussi un intérêt neutronique. Pendant leur ralentissement, les neutrons voyagent souvent dans le modérateur qui, en pratique, représente un volume plus important que celui du combustible; tant qu’ils sont dans cette zone, ils ne risquent évidemment pas d’être capturés quelle que soit leur énergie. S’ils entrent dans le combustible à une énergie de résonance, ils sont absorbés au voisinage de la surface : on peut dire que les couches superficielles du combustible protègent les couches centrales. C’est ainsi que dans les filières des réacteurs à neutrons thermiques, au moins les trois quart des neutrons échappent finalement à la capture résonnante par l’uranium 238. 1, record 8, French, - autoprotection%20en%20espace
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2010-06-30
Record 9, English
Record 9, Subject field(s)
- Energy Transformation
- Nuclear Fission Reactors
Record 9, Main entry term, English
- annular pellet
1, record 9, English, annular%20pellet
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- annular fuel pellet 2, record 9, English, annular%20fuel%20pellet
correct
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
The shape and size of the pellets differs for different reactors but in the U. K. there are only 2 different designs. Solid pellets are used in most PWRs [pressurized water reactor] and annular pellets are used in AGRs [advanced gas reactor]. Annular pellets have a cylindrical hole running through the centre of the pellet and thus require a retractable pin in the press. The purpose of this hole is to accommodate distortions in the fuel and fission gasses formed in the reactor. Once the pellets have been pressed, they are sintered at 1750°C in a reducing atmosphere of hydrogen or a mixture of hydrogen and nitrogen... 1, record 9, English, - annular%20pellet
Record 9, French
Record 9, Domaine(s)
- Transformation de l'énergie
- Réacteurs nucléaires de fission
Record 9, Main entry term, French
- pastille annulaire
1, record 9, French, pastille%20annulaire
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
- pastille de combustible annulaire 2, record 9, French, pastille%20de%20combustible%20annulaire%20
correct, feminine noun
- pastille combustible annulaire 3, record 9, French, pastille%20combustible%20annulaire
correct, feminine noun
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
[Conception des combustibles REP] Les pastilles [...] représentent la partie active du combustible. Ce sont des petits cylindres - diamètre variant selon les conceptions de 8 à 10 mm et hauteur de 10 à 15 mm - obtenus par pressage et frittage de poudre d'oxyde d'uranium UO2 [...] Ces pastilles sont généralement pleines, sauf dans les réacteurs VVER où elles peuvent comporter un trou central (pastilles annulaires). 1, record 9, French, - pastille%20annulaire
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2009-04-30
Record 10, English
Record 10, Subject field(s)
- Closing Devices and Nozzles (Mechanical Components)
Record 10, Main entry term, English
- needle seat 1, record 10, English, needle%20seat
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
An apparatus for use in grinding the needle tip and seat in the needle housing of a fuel valve includes a grinding pin and a holder for the grinding pin. 1, record 10, English, - needle%20seat
Record 10, French
Record 10, Domaine(s)
- Obturateurs et buses (Composants mécaniques)
Record 10, Main entry term, French
- siège de pointeau
1, record 10, French, si%C3%A8ge%20de%20pointeau
masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
Un appareil, qui est destiné à être utilisé lors du meulage de la pointe et du siège du pointeau dans le logement de pointeau d'un robinet de carburant, comprend une broche de meulage et un support pour la broche de meulage. 1, record 10, French, - si%C3%A8ge%20de%20pointeau
Record 10, Spanish
Record 10, Textual support, Spanish
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