公开(公告)号：EP4389724A1

公开(公告)日：2024-06-26

申请号：EP23216320.4

申请日：2023-12-13

Applicant: Commissariat à l'énergie atomique et aux énergies alternatives

Inventor： LORRETTE, Christophe ,  DUMERVAL, Marie ,  NONY, Guillaume

IPC: C04B37/02 ,  G21C3/07 ,  C04B35/645 ,  C04B35/628

CPC classification number: C04B37/021 ,  G21C3/07 ,  C04B2237/8420130101 ,  C04B2237/76520130101 ,  C04B35/6455 ,  C04B2237/3820130101 ,  C04B2237/36520130101 ,  C04B2235/524420130101 ,  C04B2235/524820130101 ,  C04B2235/52220130101 ,  C04B2237/40320130101 ,  C04B35/62873 ,  C04B2237/70420130101 ,  C04B2237/70620130101 ,  C04B2235/656720130101

Abstract: L'invention se rapporte à un procédé de métallisation de la face interne (14) d'un tube (12) en une céramique ou en un composite à matrice céramique.
Ce procédé comprend au moins une étape de placage d'un tube métallique (10) sur la face interne (14) du tube (12) en céramique ou composite à matrice céramique, et est caractérisé en ce que le placage comprend un fluage du tube métallique (10) par application à ce tube d'une pression interne et d'un chauffage, le fluage se traduisant par une augmentation du diamètre externe (d1) du tube métallique (10) jusqu'à ce que la face externe (16) du tube métallique (10) se plaque sur la face interne (14) du tube (12) en céramique ou composite à matrice céramique.
L'invention se rapporte également à un procédé de fabrication d'une gaine tubulaire d'un combustible nucléaire mettant en oeuvre le procédé de métallisation.

公开(公告)号：EP4225649A1

公开(公告)日：2023-08-16

申请号：EP21880729.5

申请日：2021-08-12

Applicant: BWXT Advanced Technologies LLC ,  BWXT Nuclear Energy, Inc.

Inventor： BARRINGER, Eric A. ,  JENSEN, Russell R. ,  GUSTAFSON, Jeremy L. ,  ALES, Matt ,  BERGMAN, Joshua J. ,  SWANSON, Ryan T. ,  WITTER, Jonathan K. ,  GALICKI, Danny ,  INMAN, James B. ,  KRECICKI, Matt ,  RIDGEWAY, Roger

IPC: B64G1/40 ,  B64G1/42 ,  G21C3/07 ,  G21C3/20

公开(公告)号：EP3518250B1

公开(公告)日：2023-07-19

申请号：EP18153880.2

申请日：2018-01-29

Inventor： MIDDLEBURGH, Simon

IPC: G21C3/07

公开(公告)号：EP4195220A1

公开(公告)日：2023-06-14

申请号：EP21213290.6

申请日：2021-12-09

Applicant: Westinghouse Electric Sweden AB

Inventor： WRIGHT, Jonathan ,  LIMBÄCK, Magnus ,  ADORNO LOPES, Denise ,  NORLÉN, Magnus

IPC: G21C3/07 ,  G21C21/00

Abstract: A nuclear fuel rod cladding tube (1, 1') is described. The nuclear fuel cladding tube has an oxidation resistant coating of Chromium-Niobium Nitride (Cr-Nb-N). A method for manufacturing a nuclear fuel rod cladding tube (1, 1') is also described.

公开(公告)号：EP3593358B1

公开(公告)日：2023-06-14

申请号：EP18763315.1

申请日：2018-02-27

Inventor： LAHODA, Edward J. ,  MUELLER, Andrew J.

IPC: G21C3/07 ,  G21C21/06 ,  G21C3/06 ,  G21C3/20 ,  G21C3/10

公开(公告)号：EP4141890A1

公开(公告)日：2023-03-01

申请号：EP21940028.0

申请日：2021-05-31

Applicant: Joint-Stock Company "TVEL"

Inventor： NOVIKOV, Vladimir Vladimirovich ,  KUZNETSOV, Vladimir Ivanovich ,  MIKHEEV, Evgeniy Nikolaevich ,  GIZATULLIN, Timur Tagirovich ,  SERGIENKO, Ivan Romanovich ,  LYSIKOV, AAleksandr Vladimirovich

IPC: G21C3/07 ,  G21C3/18 ,  G21C3/28

Abstract: The invention relates to nuclear engineering and involves improvement of the design of fuel elements as part of an advanced fuel assembly that make up the core in a water-cooled vessel-type nuclear reactor of increased capacity, particularly VVER-1000. In particular, the invention relates to TBCA-T.mod.2, a new modification of fuel assemblies, and can be used at Temelin NPP. The technical result is that of increasing efficiency factor of the pressurized water reactor while maintaining the reliability and safe operation of the fuel element. The essence of the invention is as follows: the fuel element comprises a cylindrical cladding having a length of 3946±1 mm and being made of E110 ultra-high purity or E110M zirconium alloy, with an outer diameter of 9.10±0.04 mm and a wall thickness of 0.585±0.05 mm, an upper and a lower plugs providing sealing and the initial inert gas pressure of 2.7±0.2 MPa, a fuel column located in the cladding and assembled from solid fuel pellets, each pellet having a height of 11±1 mm and an outer diameter of 7.8±0.03 mm, with the total weight of all fuel pellets of 1825±20 g, and a retaining spring disposed in the cladding, being made in the form of a cylindrical spring and comprised of compensating group coils, buffer coils, and fixing group coils. The fuel pellets of the active fuel column part are made of uranium dioxide with 0.1 to 5% wt. of Uranium-235, and the fuel pellets of the upper and lower blanket parts of the fuel column are made of uranium dioxide comprising less Uranium-235 than in the active part. The length of the fuel element is 3978±2 mm.

公开(公告)号：EP4139940A1

公开(公告)日：2023-03-01

申请号：EP21725874.8

申请日：2021-04-22

Applicant: Westinghouse Electric Company LLC

Inventor： LAHODA, Edward J. ,  FERRONI, Paolo ,  FRANCESCHINI, Fausto

IPC: G21C3/07 ,  G21C21/02

公开(公告)号：EP3335220B1

公开(公告)日：2022-10-05

申请号：EP16837476.7

申请日：2016-08-02

Inventor： XU, Peng ,  CAI, Lu

IPC: G21C21/02 ,  G21C3/06 ,  B32B15/01 ,  G21C17/022 ,  G21C3/20 ,  G21C3/07

公开(公告)号：EP3935649A2

公开(公告)日：2022-01-12

申请号：EP20750788.0

申请日：2020-03-05

Applicant: Westinghouse Electric Company LLC

Inventor： LAHODA, Edward J. ,  XU, Peng ,  CAI, Lu ,  LONG, Yun ,  LYONS, John

IPC: G21C3/07 ,  G21C3/18 ,  G21C3/20

公开(公告)号：EP3327729B1

公开(公告)日：2021-08-04

申请号：EP16827016.3

申请日：2016-01-22

Inventor： LIU, Bing ,  SHAO, Youlin ,  LIU, Malin ,  LIU, Rongzheng ,  ZHU, Junguo ,  TANG, Yaping ,  ZHANG, Zuoyi

IPC: G21C21/00 ,  G21C1/07 ,  G21C3/02 ,  G21C3/62 ,  G21C3/07 ,  G21C3/20 ,  G21C21/12 ,  C23C16/442 ,  B01J8/00