G - Physics – 21 – C
Patent
G - Physics
21
C
359/76
G21C 3/32 (2006.01) G21C 3/08 (2006.01) G21C 3/338 (2006.01) G21C 3/322 (2006.01)
Patent
CA 1145864
- 19 - A B S T R A C T FUEL ELEMENT ASSEMBLY A nuclear fuel assembly of the type having a plurality of nuclear fuel elements disposed in para- llel, and forming a plurality of longitudinal flow channels, in a closely packed array is disclosed. Axially spaced longitudinal fins formed integrally on at least some of the fuel elements, at an angle with the fuel element axis, serve to divert coolant flowing longitudinally past the fuel elements between adjacent flow channels to promote mixing and even heating of the coolant. Each fin traverses the clearance between adjacent fuel elements, tangentially contacts the body of an adjacent fuel element, and is fixedly connected thereto. Sets of the axially spaced fins are fixedly connected to adjacent fuel elements, as described, in substantially the same transverse plane relative to the longitudinal axis of the fuel assembly. At the leading end of the fins, the relative flow rate di- verted from adjacent flow channels alternates; and at the trailing end of the fins, the relative flow rate conveyed to adjacent flow channels also alternates; moreover, in a given flow channel the number of flow streams diverted and converged, at the leading and trailing fin edges, also alternates.
353173
Babcock & Wilcox Company The
Ridout & Maybee Llp
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