Milorad B Dzodzo

US Patent:

20070206717, Sep 6, 2007

Filed:

Mar 2, 2006

Appl. No.:

11/366964

Inventors:

Michael Conner - Elgin SC, US
Zeses Karoutas - Simsbury CT, US
Milorad Dzodzo - Monroeville PA, US
Bin Liu - Pittsburgh PA, US
Paul Joffre - Colchester CT, US
Dmitry Paramonov - Monroeville PA, US
Levie Smith - Columbia SC, US

Assignee:

WESTINGHOUSE ELECTRIC COMPANY LLC - Monroeville PA

International Classification:

G21C 3/34

US Classification:

376438000

Abstract:

A fuel assembly for a pressurized water reactor that includes a bottom nozzle, a plurality of elongated guide thimbles projecting upwardly from the bottom nozzle, an array of fuel rods, a plurality of support grids axially spaced along the guide thimbles, and at least two Intermediate Flow Mixing grids, which may have different configurations of mixing device formations, disposed between pairs of non-uniformly spaced, adjacent support grids at selected locations.

US Patent:

6813329, Nov 2, 2004

Filed:

Jun 12, 2003

Appl. No.:

10/459777

Inventors:

William A. Byers - Murrysville PA
Dmitry V. Paramonov - Monroeville PA
Milorad B. Dzodzo - Monroeville PA
Zeses E. Karoutas - Simsbury CT
Michael Y. Young - Columbia SC

Assignee:

Westinghouse Electric Copmany LLC - Pittsburgh PA

International Classification:

G21C 306

US Classification:

376454, 376410, 376414, 376434, 376443, 376436, 376457

Abstract:

A crud-resistant nuclear fuel element cladding in which the axial locations that experience nucleate boiling during reactor full power operation are highly polished so that the maximum size of any surface defect on the highly polished surface is approximately 0. 1 microns. The remainder of the cladding surface remains unpolished so that crud is more evenly redistributed over the entire fuel cladding surface to limit the thickness of the crud that is formed to less than 35 microns.

US Patent:

20140270047, Sep 18, 2014

Filed:

Oct 28, 2013

Appl. No.:

14/064531

Inventors:

- Cranberry Township PA, US
Milorad B. Dzodzo - Monroeville PA, US

Assignee:

WESTINGHOUSE ELECTRIC COMPANY LLC - Cranberry Township PA

International Classification:

G21C 3/08

US Classification:

376438, 376451, 376434

Abstract:

The invention pertains to a nuclear fuel assembly in a nuclear water reactor. The fuel assembly includes an array of a plurality of axially extending elongated tubular nuclear fuel elements having first and second closed ends and encapsulating a fissionable material axially along at least a portion of an interior volume thereof and an exterior of at least one of the fuel elements. The fuel elements include a cladding that extends substantially axially between the first and second closed ends. The exterior surface of the cladding is modified to include a surface texture varying axially in a prescribed pattern along at least a portion of an axial length of the cladding. The surface texture includes a plurality of ribs placed parallel to one another and circumferentially around one or more of the fuel elements. Each of the plurality of ribs has a specified height, width, and pitch between each of the plurality of ribs.