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PSEG Non-Proprietary Presentation for Pre-submittal Meeting on September 28, 2023
	ML23271A161
Person / Time
Site:	Salem
Issue date:	09/28/2023
From:	; Public Service Enterprise Group, Westinghouse
To:	James Kim; NRC/NRR/DORL/LPL1
Shared Package
ML23271A159	List: ML23271A161; ML23271A162;
References
	EPID L-2023-LRM-0072, PSE-23-57, Rev 1
	Download: ML23271A161 (1)
	v • d • e

NRC Pre-Submittal Meeting September 28, 2023 Use of Cobalt Burnable Absorbers (COBAs) in Salem Generating Station Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

2 Meeting Agenda

Introductions

Provide summary overview of scope of Co60 program Describe outline and content of LAR

Change to Operating License

TS changes Dose Consequence Evaluation Topics of interest - Questions from 7/19 Tech Exchange mtg.

Position Stability of Capsule

Evaluation of Seismic Loads

Dose Contribution from Rod Ejection

Thermal-Hydraulic Analysis

Spent Fuel Criticality Analysis Submittal Schedule Questions / Comments Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

3 Overview of Cobalt-60 Program Collaboration between Westinghouse and Nordion Provide a domestic supply of Co60 for irradiation services

Gamma source for sterilization of single-use medical devices

Food and pharmaceutical ingredient irradiation

Global shortage in Co60 sources Cobalt Burnable Absorbers (COBAs) inserted into fuel assemblies

Fuel insert similar to WABAs

Neutron irradiation of inserted/harvested per outage

COBAs reside in core for and harvested

Core location of COBAs optimized for each cycle of irradiation COBA harvesting in SFP by Westinghouse and shipped to Nordion

Blended with other Co-60 slugs to create finished sources of specific activity a,c a,c a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

Cobalt-60 Production Logistics Westinghouse Non-Proprietary Class 3

PSE-23-57, Rev 1, Enclosure 3a,c

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

5 Digital Serialization of Capsules 10 CFR 20.2207 (a) and (b) Compliance

(a)(3): The manufacturer, model, and serial number of the source;

(b)(4): The manufacturer, model, and serial number of the source or, if not available, other information to uniquely identify the source; Westinghouse proposes to use the following digital serialization approach:

Each stainless steel capsule will be uniquely identified in compliance with 10 CFR 20.2207 a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

6 Outline / Content of LAR LAR to provide overview of key analyses supporting COBA LAR sections will reference Westinghouse Supporting Information

Attachments to LAR - proprietary and redacted versions Site specific assessment and analyses

Chemistry sampling procedures for Co-60

Co-60 impacts to Chapter 15 LOCA dose consequence

Dose analysis for SFP cask pit area

Update to SFP criticality analysis

WCAP for SFP Criticality analysis included as attachment to LAR Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

7 FOL / TS Changes Changes to Salem FOL

Allow for transfer/use of Co60 in accordance with 10 CFR Part 30

Allow for production, possession, receipt and transfer of Co60

Similar changes made for Hope Creek Co60 initiative

Describe minimum distance for irradiated COBAs from SFP wall Changes to Salem TS

Changes to SFP storage requirements as necessary Mark-ups of FOL and TS changes in LAR attachment Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

8 Dose Consequence Evaluations COBA design limits Chapter 15 Impact

Detection of Co-60 via routine RCS sampling

Co-60 source term non-gaseous

Only affects direct RCS release LOCA dose consequences revised for additional Co-60 source term

Expected dose margin at EAB

Reduced margin for control room dose

Resultant impact on margin may require NRC review/approval Detailed description of LOCA dose calc within LAR

Dose calculation available for review via electronic reading room Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

9 Questions Raised During July Tech Exchange Mtg.

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

10 10 Position Stability of Capsule Within Rodlet a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

11 11 Position Stability of Capsule Within Rodlet (cont.)

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

12 12 Evaluation of Seismic Loads on the COBA Capsule In reactor conditions makes the COBA design susceptible to seismic Seismic events tend to apply lateral loads to the fuel assembly Lateral loads are also applied to the core components

Formal analysis not warranted

Resulting stresses considered to be small

Core component rods & thimble plugs supported by fuel assembly guide tube along entire length

Core component rodlets protected against damage from these loads

COBAs supported similarly as other Westinghouse core components

Specific evaluation of seismic loads unnecessary Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

13 13 Dose Contribution from Rod Ejection Evaluation performed to determine if cobalt slug could potentially melt during RE accident Slug melt would present a dose contribution from any Co-60 released Analysis performed to calculate cobalt slug temperature during the event The FSAR RE transient was conservatively applied to the cobalt slug

HFP-BOL, HFP-EOL, and HZP-EOL cases were considered No melting of the cobalt slug will occur during a Rod Ejection No impact on the dose analysis for Rod Ejection Accident a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

14 14 DNB Methodology The impact of COBA inserts producing heat in the guide thimble was investigated:

A more limiting Salem DNBR case was chosen for the impact assessment Locked Rotor - meets DNBR safety analysis limit

Limiting statepoint analyzed with THINC-IV code Consistent with current safety analysis

This follows current Salem methodology for analyzing different hot assembly power distributions a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

15 15 DNB Results a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

16 16 Thermal-Hydraulic Analysis a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

COBA Rodlet Annular Regions Westinghouse Non-Proprietary Class 3

PSE-23-57, Rev 1, Enclosure 3a,c

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

18 Thermal-Hydraulic Analysis (cont.)

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

19 Thermal-Hydraulic Analysis (cont.)

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

20 Thermal-Hydraulic Analysis (cont.)

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

21 Thermal-Hydraulic Analysis (cont.)

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

22 22 Thermal-Hydraulic Analysis - Consequences a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

23 23 Thermal-Hydraulic Analysis - Consequences (cont.)

a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

24 24 Spent Fuel Criticality Analysis Plant specific SFP Criticality analysis updated with RG 1.240 including operating with COBA Updates the new fuel storage area analysis WCAP report will be generated with all pertinent details Detailed description of analysis will be included in LAR with WCAP a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

25 25 Co-60 Implementation Schedule a,c Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

26 26 Questions / Discussion Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

27 you Cobalt-60 Pre-Submittal Meeting Westinghouse Non-Proprietary Class 3

- - This record was final approved on 09/26/2023 14:42:46. (This statement was added by the PRIME system upon its validation)

v t e Letter Sequence Meeting
EPID:L-2023-LRM-0072, Presentation Slides to Support PSEG and Wetinghouse Presubmittal Meeting on Coblt-60 Production at Salem (Open)
Initiation Request, Request Acceptance... Administration Withholding Request Acceptance Meeting, Meeting Questions Answers Results Approval... Other: ML23271A162
MONTHYEAR2023-09-14 [Table View]

ML23271A161

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