FIELD: physics.
SUBSTANCE: nuclear reactor fuel assembly has a head, a tail, a bundle of cylindrical fuel elements and guide channels located in spacer grids, and aligning elements made in spacer grid cells. At least part of the aligning elements in contact with the spacer grid is made on casings of the fuel elements at places where the spacer grids are located. In a particular design of the fuel assembly, on at least part of the outer surface of the casings of the fuel elements there are wall-mounted heat exchange intensifiers, the projection height over the surface of the casings of which is less than the projection height of the aligning elements.
EFFECT: longer operating life and higher thermal efficiency of the nuclear reactor fuel assembly.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FUEL ASSEMBLY SPACER GRID | 1997 |
|
RU2124239C1 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 2001 |
|
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| PRODUCTION OF SPACER GRATE | 2013 |
|
RU2524172C1 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 2011 |
|
RU2473987C1 |
| FUEL ASSEMBLY AND CORE OF WATER-COOLED NUCLEAR REACTOR | 2001 |
|
RU2216056C2 |
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|
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| SPACER GRID OF FUEL ASSEMBLY | 2010 |
|
RU2461086C2 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 2007 |
|
RU2340019C1 |
| METHOD AND SPACER GRID FOR PREVENTING BURRS ON FUEL ELEMENTS | 1999 |
|
RU2175456C2 |
| SPACER GRID OF NUCLEAR REACTOR FUEL ASSEMBLY (OPTIONS) | 2022 |
|
RU2778040C1 |
