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MONTHYEARML14204A6232014-07-18018 July 2014
Enclosure 3, Attachment - Response to the Us NRC Request for Additional Information Relative to the Monticello Replacement Steam Dryer Accoustic/Structural Ananlyses Set 7
Project stage: Request
L-MT-14-060, Extended Power Uprate: Replacement Steam Dryer - Response to NRC Requests for Additional Information, Revised Limit Curves and Supporting Information2014-07-22022 July 2014
Extended Power Uprate: Replacement Steam Dryer - Response to NRC Requests for Additional Information, Revised Limit Curves and Supporting Information
Project stage: Response to RAI
ML14269A3252014-09-0505 September 2014
LTR-BWR-ENG-14-037-NP, Alternate Power Ascension Process
Project stage: Other
ML14269A3232014-09-0505 September 2014
LTR-BWR-ENG-14-034-NP, Investigation Into the Cause of Exceeding the Level 1 (L1) and Level 2 (L2) Limit Curves Generated Based on 2011 Monticello Main Steam Line Strain Gauge Data
Project stage: Other
L-MT-14-075, LTR-BWR-ENG-14-043-NP, Responses to the Us NRC Request for Additional Information Relative to the Monticello Replacement Steam Dryer Acoustic/Structural Analyses Set 8.2014-09-19019 September 2014
LTR-BWR-ENG-14-043-NP, Responses to the Us NRC Request for Additional Information Relative to the Monticello Replacement Steam Dryer Acoustic/Structural Analyses Set #8.
Project stage: Request
L-MT-14-075, LTR-BWR-ENG-14-043-NP, Responses to the Us NRC Request for Additional Information Relative to the Monticello Replacement Steam Dryer Acoustic/Structural Analyses Set 82014-09-19019 September 2014
LTR-BWR-ENG-14-043-NP, Responses to the Us NRC Request for Additional Information Relative to the Monticello Replacement Steam Dryer Acoustic/Structural Analyses Set 8
Project stage: Request
ML14269A3222014-09-22022 September 2014
Extended Power Uprate: Replacement Steam Dryer-Revised Limit Curve Methodology
Project stage: Other
ML14301A5162014-10-29029 October 2014
Staff Review of Revised Limit Curves and Additional Information Regarding the Replacement Steam Dryer Acoustic and Structural Analyses in Support of Extended Power Uprate Power Ascension (Tac No. MF3330)
Project stage: Approval
2014-07-22
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L-MT-14-075 ENCLOSURE 6 WESTINGHOUSE LETTER REPORT, LTR-BWR-ENG-14-037-NP NON-PROPRIETARY ALTERNATE POWER ASCENSION PROCESS 2 pages follow
Westinghouse Non-Proprietary Class 3 LTR-BWR-ENG-14-037-NP Alternate Power Ascension Process September 5, 2014 Westinghouse Electric Company LLC 1000 Westinghouse Drive Cranberry Township, PA 16066 USA
© 2014 Westinghouse Electric Company LLC All Rights Reserved
Westinghouse Non-Proprietary Class 3 LTR-B WR-ENG-14-037-NP Proposed Alternate Approach The approach for EPU power ascension shall use the process described below.
General
[
.rc Condition Action Pressure Load < Level 2 Increase power to the next level Level 2 < Pressure Load < Level I Perform a stress analysis at the current power level Pressure Load > Level I Reduce power to the previous step, engineering evaluation, and consideration of mitigation actions Baseline Limit Curves During the initial or baseline operating conditions (1775 MWt), data are measured with the MSL strain gauges, and these data are used to derive the MSL alternating pressure signature at the current power level. The PSD of the derived MSL pressures is calculated, and compared to the two limit curves, "L 1" and "L2", respectively.
Power Ascension Limit Curves I
T, C I
.rC I
.rc I
