| 摘要 |
A fuel assembly for a boiling water reactor comprising a first group of fuel rods (3a) which are of full-length design and which have a substantially constant cross-section area in their longitudinal direction, a second group of fuel rods (P) which consist of part-length fuel rods (3b) arranged in the lower part of the fuel assembly, or of fuel rods which in the upper part of the fuel assembly have a relatively smaller cross-section area and which in the lower part of the fuel assembly have a relatively larger cross-section area, and a fuel channel (2) surrounding the fuel rods and adapted for connection to a coolant intended to flow through the fuel assembly. The fuel assembly is so designed that, in its lower part, the flow resistance in the second group of fuel rods is greater than the flow resistance in the first group of fuel rods. <IMAGE> |
