ML22048B181: Difference between revisions
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{{#Wiki_filter:}} | {{#Wiki_filter:PRE-APPLICATION MEETING FOR PRAIRIE ISLAND TS 5.6.6, PTLR, LAR | ||
© 2022 Xcel Energy 1 | |||
February 18, 2022 | |||
Agenda Purpose | |||
===Background=== | |||
LAR Details Schedule 2 | |||
© 2022 Xcel Energy | |||
Purpose Discuss proposed license amendments to adopt approved methods in Technical Specifications (TS) 5.6.6, Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR). | |||
3 | |||
© 2022 Xcel Energy | |||
=== | |||
Background=== | |||
4 NSPM pulled surveillance capsules from the reactor vessel in the most recent Unit 1 (2020) and Unit 2 (2021) refueling outages. | |||
Review of Westinghouse draft report for the analysis of the Unit 1 surveillance capsule identified that there was a legacy error in calculations with respect to the location of weld W2. | |||
© 2022 Xcel Energy | |||
LAR Details 5 | |||
The proposed amendments would revise PINGP TS 5.6.6 to include more recent analytical methods that have been found acceptable by the NRC. | |||
o Update the approved analytical method to determine RCS pressure and temperature limits and over-pressure protection system (OPPS) setpoints from WCAP-14040-NP-A, Rev 2, to that in WCAP-14040-NP-A, Rev 4. | |||
o Update the approved analytical method for calculating neutron fluence to the Westinghouse methodology provided in WCAP-18124-NP-A, Rev 0, to allow this method as an alternative to section 2.2 of WCAP-14040, Rev 4. | |||
NSPM plans to include with the LAR the revised Unit 1 heatup and cooldown curves using the proposed methods. | |||
o NSPM expects the Unit 2 heatup and cooldown curves will be bounded by the Unit 1 curves. | |||
© 2022 Xcel Energy | |||
LAR Details (continued) 6 Technical Specification Markups | |||
© 2022 Xcel Energy | |||
LAR Details (continued) 7 Precedent: Beaver Valley Units 1 and 2 amendments 313 and 203 o | |||
Comments on extended beltline comparing PINGP to Beaver Valley. | |||
Supplement 1 to WCAP-18124, Rev 0, addresses extended beltline generically and is currently in NRC review and expected before the new Unit 1 heatup and cooldown curves are completed. | |||
The Beaver Valley fluence calculation resulted in more material in the extended beltline. PINGP will not have new material within the extended beltline. | |||
© 2022 Xcel Energy | |||
Schedule 8 | |||
March 2022 - Submit Unit 1 Capsule Report August 2022 - Submit PTLR LAR March 2023 - Submit Unit 2 Capsule Report July 2023 - Submit Unit 2 heatup and cooldown curves September 2023 - Submit PTLR revision | |||
© 2022 Xcel Energy | |||
© 2022 Xcel Energy 9}} | |||
Latest revision as of 18:28, 27 November 2024
| ML22048B181 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 02/18/2022 |
| From: | Northern States Power Co, Xcel Energy |
| To: | Robert Kuntz NRC/NRR/DORL/LPL3 |
| Kuntz R | |
| References | |
| EPID L-2022-LRM-0011 | |
| Download: ML22048B181 (9) | |
Text
PRE-APPLICATION MEETING FOR PRAIRIE ISLAND TS 5.6.6, PTLR, LAR
© 2022 Xcel Energy 1
February 18, 2022
Agenda Purpose
Background
LAR Details Schedule 2
© 2022 Xcel Energy
Purpose Discuss proposed license amendments to adopt approved methods in Technical Specifications (TS) 5.6.6, Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR).
3
© 2022 Xcel Energy
=
Background===
4 NSPM pulled surveillance capsules from the reactor vessel in the most recent Unit 1 (2020) and Unit 2 (2021) refueling outages.
Review of Westinghouse draft report for the analysis of the Unit 1 surveillance capsule identified that there was a legacy error in calculations with respect to the location of weld W2.
© 2022 Xcel Energy
LAR Details 5
The proposed amendments would revise PINGP TS 5.6.6 to include more recent analytical methods that have been found acceptable by the NRC.
o Update the approved analytical method to determine RCS pressure and temperature limits and over-pressure protection system (OPPS) setpoints from WCAP-14040-NP-A, Rev 2, to that in WCAP-14040-NP-A, Rev 4.
o Update the approved analytical method for calculating neutron fluence to the Westinghouse methodology provided in WCAP-18124-NP-A, Rev 0, to allow this method as an alternative to section 2.2 of WCAP-14040, Rev 4.
NSPM plans to include with the LAR the revised Unit 1 heatup and cooldown curves using the proposed methods.
o NSPM expects the Unit 2 heatup and cooldown curves will be bounded by the Unit 1 curves.
© 2022 Xcel Energy
LAR Details (continued) 6 Technical Specification Markups
© 2022 Xcel Energy
LAR Details (continued) 7 Precedent: Beaver Valley Units 1 and 2 amendments 313 and 203 o
Comments on extended beltline comparing PINGP to Beaver Valley.
Supplement 1 to WCAP-18124, Rev 0, addresses extended beltline generically and is currently in NRC review and expected before the new Unit 1 heatup and cooldown curves are completed.
The Beaver Valley fluence calculation resulted in more material in the extended beltline. PINGP will not have new material within the extended beltline.
© 2022 Xcel Energy
Schedule 8
March 2022 - Submit Unit 1 Capsule Report August 2022 - Submit PTLR LAR March 2023 - Submit Unit 2 Capsule Report July 2023 - Submit Unit 2 heatup and cooldown curves September 2023 - Submit PTLR revision
© 2022 Xcel Energy
© 2022 Xcel Energy 9