ML17003A086

Palo Verde Nuclear Generating Station, Units 1, 2, and 3 - Enclosure 2 Slides Regulatory Audit Report for November 2-3, 2016

ML17003A086
Person / Time
Site:	Palo Verde
Issue date:	11/03/2016
From:	Arizona Public Service Co
To:	Plant Licensing Branch IV
Singal B K, NRC-DORL 415-1564
References
CAC MF8076, CAC MF8077, CAC MF8078, CAC MF8079, CAC MF8080, CAC MF8081
Download: ML17003A086 (12)

Text

NRC Audit of Palo Verde Units 1, 2, and 3 Next Generation Fuel License Amendment Request November 2-3, 2016 Introduction of Personnel Michael Dilorenzo - Section Leader, Regulatory Affairs, APS Matthew Cox - Sr. Licensing Consultant, APS Brian Blackmore - Department Leader, Nuclear Engineering, APS Robert Hicks - Sr. Engineer, Transient Analysis, APS Lun-Chih [Larry] Hwang- Sr. Engineer, Reload Analysis, APS Max O'Cain - Program Manager, Westinghouse Darrin Smith - Project Manager, Westinghouse Sukhwans Singh - Sr. Engineer, Westinghouse Hans Van De Berg - Fellow Engineer, Westinghouse Steven Grill - Fellow Engineer, Westinghouse Brett Kellerman - Principal Engineer, Westinghouse Doug Atkins - Principal Engineer, Westinghouse Vick Nazareth - Director, Nuclear Fuel Technology, Anatech 2 Agenda Introduction LAR Overview Analysis Methods Fuel Assembly Structural Chapter 15 Analysis LOCA & LTC Analysis Summary 3 Introduction This submittal revises the licensing basis to implement Next Generation Fuel(1) at Palo Verde (NL16188A332) -Permanent cladding exemption request per 50.12 -Revises TS 4.2.1 and TS 5.6.5b IAW 50.90 -Adds a license condition addressing IN 2012-09 Two public meetings held with the NRC Lead Use Assembly test program in Unit 3 Transitioning to NGF ensures security of supply, improved fuel cycle economics, and increase in DNB margin Consistent with precedents for other Combustion Engineering (CE) digital protection plants [ML080840015, (3/26/2008) & ML080880014, (4/15/2008)] 4 1) Next Generation Fuel design, is CE_16x16_NGF and is referred to as CE16NGF through the presentation License Amendment Request Submittal Package Contents Enclosure -Cover letter, Requested Technical Specification changes, License Condition, Regulatory Analysis, Environmental Evaluation, Exemption requests Attachment 1 - License Condition Mark-Up Attachment 2 - Technical Specification Page Mark-Ups Attachment 3 - Clean Technical Specification Pages Attachment 4 - Technical Specification Basis Mark-Ups For Information Only Attachment 5 - Assessment of Topical Report Limitations and Conditions Attachment 6 - Proprietary Affidavit Attachment 7 - Non-Proprietary Technical Analysis Attachment 8 - Proprietary Technical Analysis 5 NRC Staff Audit Areas Application of Analysis Methodologies Fuel Assembly Structural Chapter 15 Analyses LOCA and LTC Analyses 6 Application of Analysis Methodologies Limitations and Conditions and CHF correlations for specific applications -Lun-Chih [Larry] Hwang, APS -Sukhwans Singh, Westinghouse -Vick Nazareth, Anatech Setpoints and MSCU related methods -Steven Grill, Westinghouse -Robert Hicks, APS 7 NOTE: Other APS and Westinghouse support staff will be available by phone.

Fuel Assembly Structural Seismic/LOCA testing and analyses -Eugene Montgomery, APS (remote) -Mike Martin, Westinghouse (remote) -Eric Eggleston, Westinghouse (remote) 8 Chapter 15 Analyses Analysis inputs, methods, and results Bounded/unaffected determinations for events Transition core effects Fuel failure analyses and DNB propagation For all topics: -Robert Hicks, APS -Hans Van De Berg, Westinghouse 9 NOTE: Other APS and Westinghouse support staff will be available by phone.

LOCA and LTC Analyses Treatment of thermal conductivity degradation Impact of radial fall-off curve implementation Review of sensitivity analysis cases and burnup dependent analyses (described in Att 8, Pg 67) not presented in submittal Impact of assumption concerning unavailability of offsite power for LBLOCA case Transition mixed-core analysis results Understanding how conditions are set for hot rod Burnup / initial stored energy assumptions for LBLOCA and SBLOCA Long-term cooling / boric acid precipitation Reference description for SKBOR code (described in Att 8, section 8.4.5) 10 LOCA and LTC Robert Hicks, APS David Medek, APS (remote) Douglas Atkins, Westinghouse Brett Kellerman, Westinghouse David Rumschlag, Westinghouse (remote) 11 NOTE: Other APS and Westinghouse support staff will be available by phone.

We SAFELY and efficiently generate electricity for the long term 12