Patent ID: 7577230
Filing Date: 2009-08-18
Classification: G21C,Y02E

Abstract:
1. A method of modifying a flow of fluid within a core of a reactor, the method comprising: installing a plurality of control rod guide tubes in the reactor; installing a fuel support in the reactor; and installing a plurality of fuel assemblies in the reactor; wherein the fuel support includes a plurality of fuel support apertures, wherein each fuel support aperture has an associated lumen, wherein installing the plurality of fuel assemblies in the reactor includes inserting a lower tie plate of a respective fuel assembly in each fuel support aperture of the fuel support, wherein when the plurality of control rod guide tubes, the fuel support, and the plurality of fuel assemblies are installed, the associated lumen of each fuel support aperture channels fluid from a respective control rod guide tube to the respective fuel assembly, and wherein at least one lumen is configured to attenuate a fluid flow through the at least one lumen as compared to a fluid flow through at least one other lumen.