| 摘要 |
A method of making a fuel channel (10) for a fuel assembly (8) for a nuclear power boiling water reactor comprises: providing at least one first sheet (11) of a Zr-based material of a first thickness (T), providing at least one second sheet (12) of a Zr-based material of a second thickness (t), which is less than said first thickness (T), assembling at least said at least one first sheet (11) and said at least one second sheet (12), such that a fuel channel (10) is formed and such that said at least one first sheet (11) forms a lower part (LP) of the fuel channel (10) and such that said at least one second sheet (12) forms a higher part (HP) of the fuel channel (10) and such that said lower part (LP) is joined with said higher part (HP), wherein said lower part (LP) constitutes 20-75% of the length (L) of the fuel channel (10). The invention also concerns a fuel channel (10) and a fuel assembly (8). |
