ML22096A005

TSTF-487 LAR Pre-submittal Public Meeting Presentation Slides

ML22096A005
Person / Time
Site:	Palo Verde
Issue date:	04/06/2022
From:	Arizona Public Service Co
To:	Division of Operating Reactor Licensing
Lingam S, 301-415-1564
References
EPID L-2022-LRM-0025
Download: ML22096A005 (12)

Text

Palo Verde Nuclear Generating Station Adoption of TSTF-487-A to Relocate DNB Parameter Limits to the COLR Pre-Submittal Meeting with the NRC April 6, 2022 PoloVerde" GENERATING STATION

Agenda

• Description

• Proposed Technical Specification (TS) Changes

• Conforming TS Bases Changes

• Precedents

• Submittal Timeline 2

Description

• Technical Specification Task Force (TSTF)-487-A relocates Reactor Coolant System (RCS) Departure from Nucleate Boiling (DNB) parameters from the TS to the Core Operating Limits Report (COLR)

• Parameters include RCS pressure, temperature, and total flow rate

• Changes are consistent with the Standard Technical Specifications (NUREG-1432, Rev. 5) and no changes are made to the actual limits

• Submittal will be consistent with the model application in the federal register (72 FR 31108) 3

Proposed TS Changes 4

Proposed TS Changes 5

Proposed TS Changes

• Remove Figure 3.4.1-1, Reactor Coolant Cold Leg Temperature vs Core Power Level 6

Proposed TS Changes New item added for TS 5.6.5, paragraph a, to add the methodology requirements for calculating the DNB numerical limits in the COLR.

7

Proposed TS Changes TS 5.6.5, paragraph c, is modified to clarify that the COLR limits must be determined assuming that the plant is capable of operating at the Rated Thermal Power specified in Section 1.1, Definitions.

8

Conforming TS Bases Changes 9

Precedents

• San Onofre Units 2 and 3, License Amendment 219, dated February 3, 2009 (ML083470091)

• Calvert Cliff Units 1 and 2, License Amendments 301 and 278, respectively, dated January 11, 2012 (ML113410461) 10

Submittal Timeline

• Submittal planned for mid-April

• Requesting 9-month NRC review period

• Requesting a 6-month implementation period

• Implementation includes COLR revisions submitted to the NRC, as required per TS 5.6.5.d 11

Questions