| 摘要 |
Disclosed is a fuel element for a pressurized water reactor, comprising a plurality of fuel rods (2) that are guided inside a plurality of axially spaced-apart spacers (4d) which are composed of grid webs (20). Each of said grid webs (20) forms a grid with a multitude of grid cells (6) which are disposed in rows and columns. The grid webs (20) are provided with flow-conducting means (26) for generating a cooling water current encompassing a transversal flow component that is oriented parallel to the spacer plane. According to the invention, at least one spacer (4) is composed of a multitude of subareas (50a-d), each of which is greater than one grid cell (6), while the flow- conducting means (26) are designed and distributed within the spacer (4) in such a way that in the wake above each subarea (50a-d), a transversal flow distribution is created which causes cooling water to be exchanged at least almost exclusively between secondary flow ducts (6) located within the subarea.
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