Fuel assembly for a pressurized water nuclear reactor containing plutonium-free enriched uranium
US7844025B2 · kind B2 · utility
3Cited by
15References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2004 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Aug 28, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This fuel assembly for a pressurized water nuclear reactor comprises fuel rods which are arranged at the nodes of a substantially regular network which has a polygonal outer contour, the fuel rods containing uranium which is enriched in isotope 235 and not containing any plutonium before the assembly is used in a reactor. The rods are distributed in at least a first central group which is constituted by fuel rods which have a first level of nuclear reactivity, and an outer peripheral layer of fuel rods which have a level/levels of nuclear reactivity which is/are strictly less than the first level of reactivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.