ML14072A025

WCAP-17654-NP, Rev 3, Peach Bottom Unit 2 Replacement Steam Dryer Power Ascension Program Description for Extended Power Uprate.

ML14072A025
Person / Time
Site:	Peach Bottom
Issue date:	03/31/2014
From:	Zalewski T Westinghouse
To:	Office of Nuclear Reactor Regulation
Shared Package
ML14072A016	List: ML14072A022 ML14072A023 ML14072A024 ML14072A025 ML14072A026
References
WCAP-17654-NP, Rev 3
Download: ML14072A025 (11)

Text

Attachment 10 Peach Bottom Atomic Power Station Units 2 and 3 NRC Docket Nos. 50-277 and 50-278 WCAP-17654, Rev 3. Peach Bottom Unit 2 Power Ascension Program Description for Extended Power UDrate

Westinghouse Non-Proprietary Class 3 WCAP-17654-NP March 2014 Revision 3 Peach Bottom Unit 2 Replacement Steam Dryer Power Ascension Program Description for Extended Power Uprate Westinghouse

WESTINGHOUSE NON-PROPRIETARY CLASS 3 WCAP-17654-NP Revision 3 Peach Bottom Unit 2 Replacement Steam Dryer Power Ascension Program Description for Extended Power Uprate March 2014 Author: Thomas Zalewski*

Engineering Projects Reviewer: David A. Suddaby

• BWR Plant & Stress Analysis Approved: David R. Forsyth*, Manager BWR Plant and Stress Analysis

• Electronically approved records are authenticated in the electronic document management system.

Westinghouse Electric Company LLC 1000 Westinghouse Drive Cranberry Township, PA 16066, USA

© 2014 Westinghouse Electric Company LLC All Rights Reserved

ii Record of Revisions Rev Revision Description Date 0 Original August 2012 1 MSL Limit curves updated based on ACM Rev. 4.2 analysis August 2012 2 Minor content edits September 2012 3 Content updated to reflect the use of[ March 2014 Since the changes were extensive, revision bars were not utilized.

WCAP- 17654-NP March 2014 Revision 3

iii TABLE OF CONTENTS I INTRODUCTION AND PURPOSE ............................................................................................ 1-1 2 POWER ASCENSION PROGRAM (PAP) SCOPE ............................................................... 2-1 2.1 PARAMETER MONITORING ................................................................................. 2-I 2.1.1 Steam Dryer [ ]a.c ............... 2-1 2.1.2 Steam Dryer Indirect Data Monitoring (Main Steam Line Strain Gauges) ..... 2-2 2.2 POWER ASCENSION PROGRAM ................................................................................ 2-2 2.2.1 RSD PAP Test Level A (Low Power (<25%) to 100% of CLTP Power L ev el) ............................................................................................................... 2 -2 2.2.2 RSD PAP Test Level B (100% CLTP Power Level to 112.4% CLTP Power L ev el) ............................................................................................................... 2 -2 2.3 NRC COMMUNICATION .............................................................................................. 2-3 2.3.1 Interface during RSD PAP ............................................................................... 2-3 2.3.2 Written Reports ................................................................................................ 2-3 3 REFE RE N C E S ............................................................................................................................. 3-1 WCAP-17654-NP March 2014 Revision 3

iv LIST OF TABLES Table 2-1 Steam Dryer [ ].c ...................................................................... 2-1 WCAP- 17654-NP March 2014 Revision 3

1-1 1 INTRODUCTION AND PURPOSE This document describes the Exelon Peach Bottom Atomic Power Station Unit 2 Extended Power Uprate (EPU) Replacement Steam Dryer (RSD) Power Ascension Program (PAP). The RSD PAP includes the planned course of action for monitoring and evaluating the performance of the RSD during power ascension testing to EPU power level and operation.

The RSD PAP is divided into two test levels, A and B, to ensure sufficient monitoring of the RSD as defined in Regulatory Guide 1.20 Rev 3 (Reference 1).

Test Level A - Performs baseline data gathering from low power (<25%) to 100% (>0 MWt to 3514 MWt) of the Current Licensed Power Level (CLTP). Current Licensed Power Level (CLTP) is 3514 MWt.

Test Level B - Performs testing from approximately 100% to 112.4% of CLTP (3514 M Wt to 3951 MWt). EPU power level is 3951 MWt.

The purpose of the PBAPS U2 RSD PAP is to provide assurance that the stresses in the individual steam dryer components will be conservative with respect to the calculated values, consistent with section 2.1 of Reference 1. This will confirm the RSD performs as predicted with the [

]a,, methodologies. The RSD PAP is a portion of the overall EPU Power Level startup testing program, which is presented in Attachment 10 of the LAR submittal.

Completion of the RSD PAP will ensure that the integrity of the steam dryer will be maintained in an acceptable state at EPU power.

The RSD PAP assesses the steam dryer performance for the EPU power level startup power ascension process. Each section establishes operating limits, data collection and analysis requirements, and any subsequent actions if necessary. There are three main elements of the RSD PAP:

1. Power ascension with defined hold points and durations, allowing time for monitoring and analysis for ascension up to EPU power.

2. A detailed power ascension monitoring and analysis program to trend steam dryer performance through the monitoring of RSD strain gauges. In addition, RSD accelerometers, and RSD pressure transducers will be monitored. These instruments are directly installed on the RSD.

3. Documentation of the results from the instrumentation will be submitted to the NRC in reports consistent with Regulatory Guide 1.20 Rev 3 (Reference 1).

This program includes specific hold points and durations during power ascension; activities to be accomplished during hold points; data to be collected; data evaluation methods; and acceptance criteria for monitoring and trending plant parameters. This program is consistent with the guidance contained in Regulatory Guide (RG) 1.20 Rev 3 (Reference 1). Detailed procedures will be developed to implement this program.

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2-1 2 POWER ASCENSION PROGRAM (PAP) SCOPE 2.1 PARAMETER MONITORING I

]a,c 2.1.1 Steam Dryer [ I2.C

[

]a.c Table 2-I Steam Dryer [I"* -

a,c WCAP- 17654-NP March 2014 Revision 3

2-2 2.1.2 Steam Dryer Indirect Data Monitoring (Main Steam Line Strain Gauges) pac 2.2 POWER ASCENSION PROGRAM Detailed test procedures will be developed for the implementation of the actual power ascension testing evolutions. The power ascension will occur over a period of time with gradual increases in power, hold periods, and engineering analysis of monitored data prior to subsequent power increases.

2.2.1 RSD PAP Test Level A (Low Power (<25%) to 100% of CLTP Power Level)

The RSD PAP Test Level A includes collection of data from low power (less than 25% RTP) to 3514 MWt. Instrumentation data will be obtained for baseline data at increments consistent with the overall Power Ascension Program.

Monitoring and Analysis - RSD PAP Test Level A Power ascension between 0 MWt and 3514 MWt will be achieved via the following methodology:

1. Collection of data from low power (less than 25% RTP) to 3514 MWt.

2. At increments consistent with the overall Power Ascension Program (Attachment 10 of the LAR submittal), compare measured plant data against predicted plant data.

3. The duration of the individual power ascension steps will be determined by the time required to obtain the specified data.

EGC will perform

]ac 2.2.2 RSD PAP Test Level B (100% CLTP Power Level to 112.4% CLTP Power Level)

[

WCAP-17654-NP March 2014 Revision 3

2-3

]a,c Monitoring and Analysis - RSD PAP Test Level B The assessment of the system/component performance and integrity will be completed through the

]ac As noted, dryer performance and integrity will be evaluated [

]a.c 2.3 NRC COMMUNICATION 2.3.1 Interface during RSD PAP A brief stress summary report for the replacement steam dryer (RSD) based on [

]a.C A summary of the

]a~c 2.3.2 Written Reports The results of the power ascension testing for the RSD will be submitted to the NRC in a report within 90 days of completion of Peach Bottom Unit 2 EPU power ascension testing. [

]a.c WCAP-17654-NP March 2014 Revision 3

3-1 3 REFERENCES

1. Regulatory Guide 1.20, Revision 3, "Comprehensive Vibration Assessment Program for Reactor Internals During Preoperational And Initial Startup Testing," March 2007 (ADAMS Accession No. ML070260376).

WCAP-17654-NP March 2014 Revision I