G - Physics – 21 – C
Patent
G - Physics
21
C
359/75
G21C 3/18 (2006.01) G21C 3/04 (2006.01) G21C 3/22 (2006.01) G21C 3/32 (2006.01)
Patent
CA 1167176
CASE 774 FUEL BUNDLE WITH SKEWED ELEMENTS ABSTRACT OF THE DISCLOSURE A nuclear reactor having elongated pressure tube fuel channels containing rodded fuel elements assembled as discreate bundles arranged in end to end serial relation within the pressure tube, for the passage of liquid coolant therepast is provided with improved fuel bundles having the rodded elements skewed with respect to the pressure tube in order to promote swirling of the liquid or liquid and vapour mixture coolant in its passage along the fuel channel. In addition to the evident rotational effect due to the "twist", the effect of skewing the fuel rods in each bundle is to create a progressive change in flow area distribution between the interior subchannels and the subchannels surrounding the bundle, from both ends of each fuel bundle to its longitudinal centre, tending to promote uniform heating of the liquid or liquid and vapour coolant by flow deflection between the interior subchannels and the surrounding subchannels.
387727
Canadian General Electric Company Limited
Eckersley Raymond A.
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