Advanced gray rod control assembly

Details Advanced gray rod control assembly Advanced gray rod control assembly

2005-07-26

2008-08-12

Palabrica, Rick (Department: 3663)

Induced nuclear reactions: processes, systems, and elements

Control component for a fission reactor

C376S333000, C376S339000

Reexamination Certificate

active

07412021

ABSTRACT:
An advanced gray rod control assembly (GRCA) is for a nuclear reactor. The reactor has a plurality of fuel assemblies each including numerous elongated fuel rods supported in an organized array by substantially transverse support grids, and a plurality of guide thimbles disposed through the support grids and along the fuel rods. The GRCA includes a spider assembly structured to provide controlled insertion of gray rod assemblies within the thimbles of the fuel assembly, thereby controlling the rate of power produced by the reactor. Each gray rod assembly includes an elongated tubular member, a first end plug, a second end plug, a substantially pure silver neutron-absorber disposed within the tubular member, and a support tube surrounding the neutron-absorber within the tubular member to resist silver-swelling. Delta-power of the reactor is improved by minimizing the exposed surface area of the absorber and distributing it among all of the rods of the GRCA.

REFERENCES:
patent: 2859163 (1958-11-01), Ploetz et al.
patent: 2983817 (1961-05-01), Earley et al.
patent: 3255092 (1966-06-01), Dee, Jr.
patent: 4079236 (1978-03-01), Graham et al.
patent: 4172760 (1979-10-01), Ballard et al.
patent: 4564498 (1986-01-01), Grossman et al.
patent: 4626404 (1986-12-01), Chubb
patent: 4687620 (1987-08-01), Impink, Jr.
patent: 4759904 (1988-07-01), Gillett et al.
patent: 5064607 (1991-11-01), Miller et al.
patent: 5141711 (1992-08-01), Gjertsen et al.
patent: 5167900 (1992-12-01), Odaka et al.
patent: 5872826 (1999-02-01), Fujieda et al.
patent: 6246740 (2001-06-01), Maruyama et al.
patent: 6275556 (2001-08-01), Kinney et al.
patent: 6636580 (2003-10-01), Murakami et al.

Affiliated with

Also associated with

Rating

Advanced gray rod control assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Advanced gray rod control assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advanced gray rod control assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4010187