ML071280337

Submittal of 10 CFR 50.46 Report for Palo Verde Nuclear Generating Station Changes in Containment Passive Heat Sink Data

ML071280337
Person / Time
Site:	Palo Verde
Issue date:	10/19/2006
From:	Westinghouse
To:	Office of Nuclear Reactor Regulation
References
LTR-OA-06-94
Download: ML071280337 (8)

Text

Westinghouse Non-Proprietary Class 3 Westinghouse Westinghouse Electric Company Nuclear Services P.O. Box 355 Pittsburgh, Pennsylvania 15230-0355 USA Directtel:

(860) 731-6430 Direct fax: (860) 731-6439 e-mail: joseph.m.cleary@ us.westinghouse.com Our ref:

LTR-OA-06-94 October 19, 2006 10 CFR 50.46 Report for PVNGS Units 1, 2, and 3 Changes in Containment Passive Heat Sink Data

Dear Sir or Madam:

The attachment documents the 10 CFR 50.46 Report for the evaluation of the impact of revised containment passive heat sinks on the Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, and 3 Large Break Loss-of-Coolant Accident (LBLOCA) Emergency Core Cooling System (ECCS) performance analysis. Additionally, it documents the current PCT Rackup for the PVNGS Units 1, 2, and 3 Small Break LOCA ECCS performance analysis.

Please contact your LOCA Plant Cognizant Engineer if there are any questions concerning this information.

Author: Electronically Approved*

J.M. Cleary Operations Analysis Verifier: Electronically Approved*

M.C. Jacob Operations Analysis Approved: Electronically Approved*

S.P. Rigby Manager, Operations Analysis

• Electronically Approved Records Are Authenticated in the Electronic Document Management System A BNFL Group company

© 2006 Westinghouse Electric Company LLC.

All Rights Reserved.

Attachment to LTR-OA-06-94 October 19, 2006 Westinghouse LOCA Peak Clad Temperature Summary for Appendix K Large Break Plant Name:

Palo Verde Nuclear Generating Station Unit 1 Utility Name:

Arizona Public Service Revision Date:

10/16/06 Analysis Information EM:

1999 EM Analysis Date:

3/18/02 Limiting Break Size: 0.6 DEG/PD Fuel:

16x16 System 80 SGTP (%):

10 PLHGR (kW/ft): 13.1 Notes:

1. Plant Configuration: Rated Core Power = 3990 MWt, Replacement Steam Generators.

2. Fuel Design: 16x16 System 80 with ZIRLO TM cladding, value-added pellets, and erbia burnable absorbers.

Clad Temp (°F)

Ref.

Notes LICENSING BASIS Analysis-Of-Record PCT 2110 1

PCT ASSESSMENTS (Delta PCT)

A. PRIOR ECCS MODEL ASSESSMENTS 1. STRIKIN-Il Steam Cooling Model Error 2

2 B. PLANNED PLANT MODIFICATION EVALUATIONS 1. Revised Containment Passive Heat Sinks 4

3 C. 2006 ECCS MODEL ASSESSMENTS

1. None 0

D. OTHER*

1. None 0

LICENSING BASIS PCT + PCT ASSESSMENTS PCT =

2116 It is recommended that the licensee determine if these PCT allocations be considered with respect to 10 CFR 50.46 reporting requirements.

References:

1 A-PV-FE-0148, Rev. 002, "PVNGS LBLOCA ECCS Performance Analysis with Revised Containment Heat Sinks Data and ZIRLOTM Using 1999 EM," March 2002.

2 LTR-LIS-06-117, "10 CFR 50.46 Annual Notification and Reporting for 2005," March 2006.

3 LTR-OA-06-94, "10 CFR 50.46 Report for PVNGS Units 1, 2, and 3 Changes in Containment Passive Heat Sink Data,"

October 2006.

Notes:

None

Attachment to LTR-OA-06-94 October 19, 2006 Westinghouse LOCA Peak Clad Temperature Summary for Appendix K Small Break Plant Name:

Utility Name:

Revision Date:

Palo Verde Nuclear Generating Station Unit 1 Arizona Public Service 10/16/06 Analysis Information EM:

S2M Analysis Date:

3/22/02 Limiting Break Size: 0.05 sq ft/PD Fuel:

16x16 System 80 SGTP (%):

10 PLHGR (kW/ft):

13.5 Notes:

1. Plant Configuration: Rated Core Power = 3990 MWt, Replacement Steam Generators.

2. Fuel Design: 16xl 6 System 80 with ZIRLO TM cladding, value-added pellets, and erbia burnable absorbers.

Clad Temp (OF)

Ref.

Notes LICENSING BASIS Analysis-Of-Record PCT PCT ASSESSMENTS (Delta PCT)

A. PRIOR ECCS MODEL ASSESSMENTS 1 None B. PLANNED PLANT MODIFICATION EVALUATIONS 1.None C. 2006 ECCS MODEL ASSESSMENTS 1. None D. OTHER*

1 None 1618 0

0 0

0 LICENSING BASIS PCT + PCT ASSESSMENTS PCT =

1618 It is recommended that the licensee determine if these PCT allocations be considered with respect to 10 CFR 50.46 reporting requirements.

References:

1. A-PV-FE-0149, Rev. 001, "Palo Verde Units 1, 2 and 3 S2M Bounding SBLOCA ECCS Performance Analysis," March 2002.

Notes:

None

Attachment to LTR-OA-06-94 October 19, 2006 Westinghouse LOCA Peak Clad Temperature Summary for Appendix K Large Break Plant Name:

Palo Verde Nuclear Generating Station Unit 2 Utility Name:

Arizona Public Service Revision Date:

10/16/06 Analysis Information EM:

1999 EM Analysis Date:

3/18/02 Limiting Break Size: 0.6 DEG/PD Fuel:

16x16 System 80 SGTP (%):

10 PLHGR (kW/ft): 13.1 Notes:

1. Plant Configuration: Rated Core Power = 3990 MWt, Replacement Steam Generators.

2. Fuel Design: 16x16 System 80 with ZIRLOTM cladding, value-added pellets, and erbia burnable absorbers.

Clad Temp (°F)

Ref.

Notes LICENSING BASIS Analysis-Of-Record PCT 2110 1

PCT ASSESSMENTS (Delta PCT)

A. PRIOR ECCS MODEL ASSESSMENTS 1. STRIKIN-I1 Steam Cooling Model Error 2

2 B. PLANNED PLANT MODIFICATION EVALUATIONS 1. Revised Containment Passive Heat Sinks 4

3 C. 2006 ECCS MODEL ASSESSMENTS 1. None 0

D. OTHER*

1. None 0

LICENSING BASIS PCT + PCT ASSESSMENTS PCT =

2116 It is recommended that the licensee determine if these PCT allocations be considered with respect to 10 CFR 50.46 reporting requirements.

References:

1.A-PV-FE-0148, Rev. 002, "PVNGS LBLOCA ECCS Performance Analysis with Revised Containment Heat Sinks Data and ZIRLO TM Using 1999 EM," March 2002.

2. LTR-LIS-06-117, '10 CFR 50.46 Annual Notification and Reporting for 2005," March 2006.

3. LTR-OA-06-94, "10 CFR 50.46 Report for PVNGS Units 1, 2, and 3 Changes in Containment Passive Heat Sink Data,"

October 2006.

Notes:

None

Attachment to LTR-OA-06-94 October 19, 2006 Westinghouse LOCA Peak Clad Temperature Summary for Appendix K Small Break Plant Name:

Utility Name:

Revision Date:

Palo Verde Nuclear Generating Station Unit 2 Arizona Public Service 10/11/06 Analysis Information EM:

S2M Analysis Date:

3/22/02 Limiting Break Size: 0.05 sq ft/PD Fuel:

16x16 System 80 SGTP (%):

10 PLHGR (kW/ft): 13.5 Notes:

1. Plant Configuration: Rated Core Power = 3990 MWt, Replacement Steam Generators.

2. Fuel Design: 16x16 System 80 with ZIRLOTM cladding, value-added pellets, and erbia burnable absorbers.

Clad Temp (OF)

Ref.

Notes LICENSING BASIS Analysis-Of-Record PCT PCT ASSESSMENTS (Delta PCT)

A. PRIOR ECCS MODEL ASSESSMENTS 1 None B. PLANNED PLANT MODIFICATION EVALUATIONS 1 None C. 2006 ECCS MODEL ASSESSMENTS 1 None D. OTHER*

1 None 1618 1

0 0

0 0

LICENSING BASIS PCT + PCT ASSESSMENTS PCT =

1618 It is recommended that the licensee determine if these PCT allocations be considered with respect to 10 CFR 50.46 reporting requirements.

References:

1. A-PV-FE-0149, Rev. 001, "Palo Verde Units 1, 2 and 3 S2M Bounding SBLOCA ECCS Performance Analysis," March 2002.

Notes:

None

Attachment to LTR-OA-06-94 October 19, 2006 Westinghouse LOCA Peak Clad Temperature Summary for Appendix K Large Break Plant Name:

Palo Verde Nuclear Generating Station Unit 3 Utility Name:

Arizona Public Service Revision Date:

10/16/06 Analysis Information EM:

1999 EM Analysis Date:

3/18/02 Limiting Break Size: 0.6 DEG/PD Fuel:

16xl 6 System 80 SGTP (%):

15.9 PLHGR (kW/ft): 13.1 Notes:

1. Plant Configuration: Rated Core Power = 3876 MWt, Original Steam Generators.

2. Fuel Design: 16x16 System 80 with ZIRLOTM cladding, value-added pellets, and erbia burnable absorbers.

3. SGTP value is the maximum total percentage of plugged tubes for both steam generators (versus maximum percentage per steam generator).

Clad Temp (°F)

Ref.

Notes LICENSING BASIS Analysis-Of-Record PCT 2110 1

PCT ASSESSMENTS (Delta PCT)

A. PRIOR ECCS MODEL ASSESSMENTS 1. STRIKIN-Il Steam Cooling Model Error 2

2 B. PLANNED PLANT MODIFICATION EVALUATIONS 1. Revised Containment Passive Heat Sinks 4

3 C. 2006 ECCS MODEL ASSESSMENTS

1. None 0

D. OTHER*

1. None 0

LICENSING BASIS PCT + PCT ASSESSMENTS PCT =

2116 It is recommended that the licensee determine if these PCT allocations be considered with respect to 10 CFR 50.46 reporting requirements.

References:

1 A-PV-FE-0148, Rev. 002, "PVNGS LBLOCA ECCS Performance Analysis with Revised Containment Heat Sinks Data and ZIRLOTM Using 1999 EM," March 2002.

2 LTR-LIS-06-117, "10 CFR 50.46 Annual Notification and Reporting for 2005," March 2006.

3 LTR-OA-06-94, "10 CFR 50.46 Report for PVNGS Units 1, 2, and 3 Changes in Containment Passive Heat Sink Data,"

October 2006.

Notes:

None

Attachment to LTR-OA-06-94 October 19, 2006 Westinghouse LOCA Peak Clad Temperature Summary for Appendix K Small Break Plant Name:

Palo Verde Nuclear Generating Station Unit 3 Utility Name:

Arizona Public Service Revision Date:

10/11/06 Analysis Information EM:

S2M Analysis Date:

3/22/02 Limiting Break Size: 0.05 sq ft/PD Fuel:

16x16 System 80 SGTP (%):

25 PLHGR (kW/ft): 13.5 Notes:

1. Plant Configuration: Rated Core Power = 3876 MWt, Original Steam Generators.

2. Fuel Design: 16x16 System 80 with ZIRLO TM cladding, value-added pellets, and erbia burnable absorbers.

Clad Temp (OF)

Ref.

Notes LICENSING BASIS Analysis-Of-Record PCT 1618 1

PCT ASSESSMENTS (Delta PCT)

A. PRIOR ECCS MODEL ASSESSMENTS

1. None 0

B. PLANNED PLANT MODIFICATION EVALUATIONS 1 None 0

C. 2006 ECCS MODEL ASSESSMENTS 1. None 0

D. OTHER*

1. None 0

LICENSING BASIS PCT + PCT ASSESSMENTS PCT =

1618 It is recommended that the licensee determine if these PCT allocations be considered with respect to 10 CFR 50.46 reporting requirements.

References:

1. A-PV-FE-0149, Rev. 001, "Palo Verde Units 1, 2 and 3 S2M Bounding SBLOCA ECCS Performance Analysis," March 2002.

Notes:

None

ENCLOSURE 3 Westinghouse Electric Company's, "10 CFR 50.46 Annual Notification and Reporting for 2006,"

letter number LTR-LIS-07-159, dated March 14, 2007