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Westinghouse Non-Proprietary Class 3 Westinghouse Projects Westinghouse Projects Status Updates February 10, 2015 Presented to: NRC Presented by: Wes Stilwell Brian Hempy and Presented by: Wes Stilwell, Brian Hempy, and Tanya Sloma 1 © 2015 Westinghouse Electric Company LLC, All rights reserved

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Page 1: Westinghouse ProjectsWestinghouse Projects Status Updates

West inghouse Non-Propr ietary Class 3

Westinghouse ProjectsWestinghouse ProjectsStatus Updates

February 10, 2015

Presented to: NRCPresented by: Wes Stilwell Brian Hempy andPresented by: Wes Stilwell, Brian Hempy, and Tanya Sloma

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© 2015 Westinghouse Electric Company LLC, All rights reserved

Page 2: Westinghouse ProjectsWestinghouse Projects Status Updates

Westinghouse Projects

1. Traveller (USA/9297/AF-96) VVER Design and Application Timeline

g j

Application Timeline

2. MCC (USA/9239/AF) Special Authorization Request for Stainless Steel Rod Configuration

3. “unirradiated” Terminologygy

4. Application Timeline Summary

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Page 3: Westinghouse ProjectsWestinghouse Projects Status Updates

Traveller VVER Overview

1. Traveller VVER Design and PurposeClamshell and O erpack• Clamshell and Overpack

2. Present Design Comparisons between Traveller XL and Traveller VVER

3. Summarize SAR changes by inclusion of g yTraveller VVER into SAR

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Page 4: Westinghouse ProjectsWestinghouse Projects Status Updates

Key TermsRTP – Removable Top Plate

y

FA – Fuel Assembly

OP – Outer Pack

VVER – Traveller VVER for Hexagonal FA design (XL OP)

XL – Extended (14 foot fuel) Length Traveller

STD – Standard (12 foot fuel) Length Traveller

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Page 5: Westinghouse ProjectsWestinghouse Projects Status Updates

1. Traveller VVER Design

• Purpose is to enable transportation of VVER-type (he agonal) f el assemblies

g

(hexagonal) fuel assemblies

• Traveller VVER structurally similar to other Traveller family designs

• Traveller Generic Design:g- Doubled-walled foam-filled Stainless steel

Outerpack connected to an Aluminum ClamshellClamshell

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Page 6: Westinghouse ProjectsWestinghouse Projects Status Updates

Traveller VVER Design• Traveller VVER utilizes the Traveller XL

Outerpack (OP)

g

Outerpack (OP)

• Traveller VVER utilizes a hexagonal Clamshell

• Traveller VVER Clamshell mounted to XL OP using slightly smaller rubber shock mounts.

• Otherwise, no OP Differences

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Page 7: Westinghouse ProjectsWestinghouse Projects Status Updates

Traveller VVER Design – Clamshell Overview

Bottom Plate

Overview

Right Main DoorLeft Main Door

Main Door Hinge

Base Extrusion

ge

Top Plate

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VVER Clamshell Shear Lip

Page 8: Westinghouse ProjectsWestinghouse Projects Status Updates

Traveller VVER Design – Clamshell Top Plate DetailTop Plate Detail

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Page 9: Westinghouse ProjectsWestinghouse Projects Status Updates

Traveller VVER Design – Top End Detail

Lower OPUpper OP

DetailUpper OP

VVER Clamshell Shear Lipp

R bb Sh k

VVER Handling tool

VVER Top

Rubber Shock Mounts

pNozzle

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VVER Clamshell (door open)

Page 10: Westinghouse ProjectsWestinghouse Projects Status Updates

2. Design Comparison:Traveller XL and Traveller VVER

VentStacking Brackets

Traveller XL and Traveller VVER

Outerpack

Stiffeners (3)

Vent Port

ClamshellTop Plate

(8)(with lifting holes)

Outerpack Top(or Door)

ClosureLatches

RubberShock Mounts

ForkliftPockets (2)

Clamshell

( )Outerpack Bottom

Traveller XL Traveller VVER

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Page 11: Westinghouse ProjectsWestinghouse Projects Status Updates

Design Comparison:OuterpacksOuterpacks

XL/VVER

STD

All Traveller types

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Page 12: Westinghouse ProjectsWestinghouse Projects Status Updates

Design Comparison:Clamshell

“Square” “Hex”

Clamshell

Traveller VVERTraveller XL

Traveller XL

Clamshell = 202 in.

Traveller VVERClamshell = 185 in.

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Page 13: Westinghouse ProjectsWestinghouse Projects Status Updates

Design Comparison:Package ( ti t)Package (section cut)

VVER ClamshellXL Clamshell

VVER FA

W-NSSS (XL) FA

VVER Shock MountXL Shock Mount

Traveller VVERTraveller XL

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Traveller VVERTraveller XL

Page 14: Westinghouse ProjectsWestinghouse Projects Status Updates

Design Comparison:Top Plate ( d/t t iti )

The top plate designs are similar: A structural plate bolted to a “shear lip” to maintain FA axial position during NCT and HAC conditions. Shear Lip

Top Plate (secured/transport position)

Functionality is to accommodate fuel handling tool grappling.

Shear Lip

Top Plate

Top Plate

Shear Lip

Top Plate

XL - FTP XL – RTP VVER

KEY

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KEY:FTP – fixed top plateRTP – removable top plate

Page 15: Westinghouse ProjectsWestinghouse Projects Status Updates

Design Comparison:Top Plate ( / ti iti )

All designs contain a positive FA axial restraint device. Axial restraint stud

Top Plate (open/operating position)

Axial restraint post (stud)

VVERXL – RTP

VVERXL - FTP

Axial restraint

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plate

Page 16: Westinghouse ProjectsWestinghouse Projects Status Updates

3. SAR Changes Summary for VVERg y

Chapter 1: General Information• New Traveller VVER License drawing• General Traveller VVER design Information

Chapter 2: Structural EvaluationChapter 2: Structural Evaluation• Structural Integrity of VVER Clamshell - Finite Element Analysis • Structural Integrity of VVER Shear Lip- Finite Element Analysis • VVER Shear Lip Bolt Integrity- Finite Element Analysis/Hand

CalculationsCalculations

Chapter 3: Thermal Evaluation• Qualitative comparison of key thermal evaluation parameters • Qualitative Thermal Evaluation of VVER Clamshell using XL

analytical model

Chapter 4 & 5

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Chapter 4 & 5• No changes.

Page 17: Westinghouse ProjectsWestinghouse Projects Status Updates

SAR Changes Summary for VVERg y

Chapter 6: Package Operations• New VVER individual package and package array NCT and HAC criticality

evaluations• Methodology for most limiting case maintained• CSI of 0.7 maintained

Chapter 7: Package Operations• Basic operations during shipping and handling for all Traveller packages the

same.• No changes expected.

Chapter 8: Acceptance Test and Maintenance ProgramChapter 8: Acceptance Test and Maintenance Program• Life-cycles for all Traveller packages the same.• No changes expected.

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Page 18: Westinghouse ProjectsWestinghouse Projects Status Updates

VVER Application Timeline

31 March 2015 – NRC application submittal

1 May 2015 – Manufacturing begins

November 2015 – International application submittals

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Page 19: Westinghouse ProjectsWestinghouse Projects Status Updates

MCC Special Authorization Request

• One 14x14 fuel assembly with 5 stainless steel rod in a corner config rationrod in a corner configuration

• Prior criticality evaluation of SS rods shown less reactive than safety case− MCC license includes a single case approval

• 2 delivery dates: Fall 2015 and Spring 20162 delivery dates: Fall 2015 and Spring 2016

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Page 20: Westinghouse ProjectsWestinghouse Projects Status Updates

MCC Special Authorization Request

N M L K J I H G F E D C B AO N M L K J I H G F E D C B A

1N M L K J I H G F E D C B Ax x x x 1x 2

345

1234565

678910

6789

x 10x 11

11121314

x 11x 12x 13x 14x x 15

14 14 SS d fi ti P i d 15 15 SS d fi ti14x14 SS rod configuration Prior approved 15x15 SS rod configuration

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Page 21: Westinghouse ProjectsWestinghouse Projects Status Updates

“unirradiated” Terminology

• 10CFR71.4 definitionUnirradiated uranium means uranium containing not more than 2 x 103 Bq

gy

Unirradiated uranium means uranium containing not more than 2 x 103 Bqof plutonium per gram of uranium-235, not more than 9 x 106 Bq of fission products per gram of uranium-235, and not more than 5 x 10–3 g of uranium-236 per gram of uranium-235.

• Westinghouse is looking at future commercial opportunities for using slightly “off spec” materialopportunities for using slightly off spec material.

• This would require a number of investigations, including Transportation

• Intent to remove “unirradiated” term from licenses and• Intent to remove unirradiated term from licenses and maintain safety by A2 calculation and radiation survey

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Page 22: Westinghouse ProjectsWestinghouse Projects Status Updates

Application Timeline Summaryy

31 March 2015 – NRC application submittal for Traveller VVER amendment• Removal of unirradiated term

31 March 2015 – MCC special authorization request

June 2015 – Patriot 5-year renewal (expires 8/2015)• -96 application• Removal of unirradiated term

October 2016 – MCC 5-year renewal (expires 3/2017)• Removal of unirradiated term

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Page 23: Westinghouse ProjectsWestinghouse Projects Status Updates

Questions / Comments

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