The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 23, 2021

Filed:

Feb. 27, 2017
Applicant:

Global Nuclear Fuel—americas, Llc, Wilmington, NC (US);

Inventors:

Gregory J. Pearson, Wilmington, NC (US);

Atul A. Karve, Wilmington, NC (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C 3/326 (2006.01); G21C 19/20 (2006.01);
U.S. Cl.
CPC ...
G21C 3/326 (2013.01); G21C 19/205 (2013.01); Y02E 30/38 (2013.01);
Abstract

Cores include different types of control cells in different numbers and positions. A periphery of the core just inside the perimeter may have higher reactivity fuel in outer control cells, and lower reactivity cells may be placed in an inner core inside the inner ring. Cores can include about half fresh fuel positioned in higher proportions in the inner ring and away from inner control cells. Cores are compatible with multiple core control cell setups, including BWRs, ESBWRs, ABWRs, etc. Cores can be loaded during conventional outages. Cores can be operated with control elements in only the inner ring control cells for reactivity adjustment. Control elements in outer control cells need be moved only at sequence exchanges. Near end of cycle, reactivity in the core may be controlled with inner control cells alone, and control elements in outer control cells can be fully withdrawn.


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