Nuclear fuel element and method for making same
Block fuel elements for high temperature power reactors
Low exchange element for nuclear reactor Patent #: 4547334
ApplicationNo. 06/683013 filed on 12/18/1984
US Classes:376/427, In solid moderator block376/433Stacked (e.g., Candu type reactor fuel components)
ExaminersPrimary: Kyle, Deborah L.
Assistant: Klein, Richard L.
Attorney, Agent or Firm
International ClassesG21C 5/14 (20060101)
G21C 5/00 (20060101)
G21C 3/02 (20060101)
AbstractA nuclear fuel element comprising an elongate block of refractory material having a generally regular polygonal cross section. The block includes parallel, spaced, first and second end surfaces. The first end surface has a peripheral sealing flange formed thereon while the second end surface has a peripheral sealing recess sized to receive the flange. A plurality of longitudinal first coolant passages are positioned inwardly of the flange and recess. Elongate fuel holes are separate from the coolant passages and disposed inwardly of the flange and the recess. The block is further provided with a plurality of peripheral second coolant passages in general alignment with the flange and the recess for flowing coolant. The block also includes two bypasses for each second passage. One bypass intersects the second passage adjacent to but spaced from the first end surface and intersects a first passage, while the other bypass intersects the second passage adjacent to but spaced from the second end surface and intersects a first passage so that coolant flowing through the second passages enters and exits the block through the associated first passages.