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GE Nuclear Energy

R.E. GambleManager, ESBWR

General Electhic Company175 CurtnerAvenue, MWC 365 San Jose, CA 95125-1014408 925-3352 (phone) 408 925-5665 (facsimile)

MFN 04-072 Project 717

July 14, 2004

U.S. Nuclear Regulatory CommissionDocument Control DeskWashington, D.C. 20852-2738

Attention: Chief, Information Management BranchProgram ManagementPolicy Development and Analysis Staff

Subject: ESBWR RPV Internals Dimensions

As requested by the NRC, the attached Enclosure 1 contains seven ESBWR (1132 bundlereactor) RPV Internals "sketches." The following sketches are included:

0

S

S

S

S

S

ESBWR with 10 ft. FuelESBWR Lower Plenum - 1132 Bundles and 269 CRDsESBWR Core Plate "N" LatticeESBWR Chimney with PartitionsESBWR 4x4 Chimney PartitionsESBWR Steam Separator AssemblySteam Separator Assembly Reduced Pitch Cross Section B-B

Please note that all elevations and dimensions indicated on these sketches are preliminarypending design detail.

<OUItI

If you have any questions about the information provided here, please let me know.

Sincerely,(i~dt'd/j

Robert E. GambleManager, ESBWRrobert.gamble @gene.ge.com

Enclosures1. MFN 04-072 - ESBWR RPV Internals Dimensions - Non Proprietary Information

cc: A. Cubbage USNRC (with enclosures)J. Lyons USNRC (w/o enclosure)G.B. Stramback - GE (with enclosures)eDRF 0000-00304441

2

MFN 04-072Enclosure I

ENCLOSURE 1

MFN 04-072

ESBWR RPV Internals Dimensions

MFN 04-072 Top head thicEnclosure 1 =l160 nim

224 10 El.IC Inlet/DPV

Normal Water Lev20720 El.

17215 El.Shutdown CoolinISuction

13025 El.IC Return

10453 El.GDCS Inlet

BottcLine

All dimensions in millimeters

Note: All elevations anddimensions are preliminarypending detail design.

El.

Rev2 01-12-2004

MFN 04-072Enclosure 1

Vessel inner diam.= 7112 mm (nominal)t = 182 mm (nominal, with clad)

of Guide Tube



ESBWR Lower Plenum -1132 bundles and 269 CRD's

Rev. 2 06-25-2004

Figure 2


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Incore positionsnot yet determined

W =06278, 5

hed

51

t 648

x,. I,,,I 1


Note: All dimensions arepreliminary pending detaildesign.

Q Core central position

Rev. 05-6-2004

ESBWR Core Plate (c;o"N" Lattice Figure 3

MFN 04-072, Enclosure 1

50

ESBWR Chimney with Partitions


6147 (inner diameter)


Rev 1 06-22-2004

Figure 4


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+ Central Position

D2 Central Region BundleX Peripheral Region Bundle+ Control Rod

1028104

269Rev. 03/15/04 COFr

Figure 5

ESBWR 4x4 Chimney Partitions


All dimensions in millimeters 379 Steam

Note: All elevations and Separatorsdimensions are preliminarypending detail design.

5311

6146

6502

5/22/04 R5690Rev. 1 Hemispherical Head

ESBWR Steam Separator Assembly

Figure 6


G

00

Flange bolt patternnot yet established

uide rodracket

00080080800800000 \ 0

0000 00-~0 0

O0O0O0OStiffener bar,-aner bars0000shown in thisIrant for clarity\ O O

Stiffnot <quac

A 1



Rev. 15/22/04 R

Cross

Steam Separator Assemblyeduced Pitch (292 mm = 11.5")Section B-B (Upper and Lower Half)

Figure 7

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