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| The applicant stated that they were aware of the issue. The applicant stated that they have plans to perform a confirmatory analysis of the outlet nozzle, using the more conservative calculations, to insure that the components cumulative usage factor (CUF) is within specifications. | | The applicant stated that they were aware of the issue. The applicant stated that they have plans to perform a confirmatory analysis of the outlet nozzle, using the more conservative calculations, to insure that the components cumulative usage factor (CUF) is within specifications. |
| The applicant will provide the results of.the analysis to the staff. The applicant plans to complete the analysis within 30 days. | | The applicant will provide the results of.the analysis to the staff. The applicant plans to complete the analysis within 30 days. |
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| Original Message ----- | | Original Message ----- |
| From: D. Ashley [mailto:DJA1lnrc.qov] | | From: D. Ashley [mailto:DJA1lnrc.qov] |
Latest revision as of 07:07, 22 March 2020
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Category:E-Mail
MONTHYEARML24011A2332024-01-11011 January 2024 Request for Additional Information - License Amendment Request (ML23058A064) (EPID L-2023-LLA-0026 - Three Mile Island, U2: Amendment Historic and Cultural Resources) ML23187A0202023-06-29029 June 2023 TMI Unit 2 RAI Related to the Amended Post-Shutdown Decommissioning Activities Report ML23135A3992023-05-12012 May 2023 (External_Sender) Section 106 Consultation - NRC NHPA for Three Mile Island Unit 2 ML23159A1642023-05-11011 May 2023 Email TMI-2 Pol Am. 67 SE Minor Discrepancies ML23107A2232023-04-14014 April 2023 Response Re State Consultation-TMI-2 Solutions - Draft EA Fonsi Criticality Exemption Request ML23094A1482023-03-30030 March 2023 TMI-2 TS 6.0 Draft Wording Agreement ML23090A2142023-03-30030 March 2023 Asnyder, NRC Email from Tdevik, Energysolutions, Three Mile Island, Unit 2 -Response Regarding MC&A TS Change, Modification ML23094A0602023-03-30030 March 2023 TMI-2 Response on Draft TS Wording ML23068A4682023-03-0909 March 2023 Response Re State Consultation - License Amendment Request TMI-2 Solutions - Update Technical Specifications and Remove Certain License Conditions Applicable to Pdms ML23057A0062023-02-24024 February 2023 State Consultation - License Amendment Request TMI-2 Solutions - Update Technical Specifications and Remove Certain License Conditions Applicable to Pdms ML23051A0412023-02-15015 February 2023 Email from TMI-2 Solutions Regarding Commitment Date, Dated 02/15/2023 ML22364A1942022-12-30030 December 2022 Email Mitigation for Hydrogen Concerns Commitment, Dated December 30, 2022 ML22357A0142022-12-22022 December 2022 NRC Request for Additional Information Related to the TMI-2 Pdms Transition License Amendment Request ML22321A0072022-11-16016 November 2022 Material Control and Accounting RAI Response Clarification Call Docket No 50-320 ML23069A1582022-09-22022 September 2022 NRC Response TMI-2 Solutions Exemption Question ML22235A7862022-08-23023 August 2022 Acceptance Review: Exemption Request from 10 CFR 20, Appendix G, LLW Shipping Investigation Requirements ML22214A0482022-08-0101 August 2022 TMI-2 Response: License Amendment Request TMI-2 Solutions Physical Materials Security Plan - Revised Modified License Condition 2.C(2) ML22208A0492022-07-21021 July 2022 State Consultation Response: License Amendment Request TMI-2 Solutions Physical Materials Security Plan ML22199A2762022-07-18018 July 2022 E-mail from A. 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Bower, NRC - Oyster Creek Nuclear Generating Station - Readiness Status for ISFSI Only Inspection ML21175A2092021-06-24024 June 2021 E-mail from A. Sterdis to P. Longmire - Oyster Creek Nuclear Generating Station: ISFSI-only Physical Security Plan (Stating Implementation Intent) ML21162A3602021-06-11011 June 2021 E-mail Response from the State of New Jersey Regarding the Pending Revision to the Emergency Plan to Reflect Independent Spent Fuel Storage Installation Only Status 2024-01-11
[Table view] |
Text
Donnie Ashley From: <john.hufnagel@exeloncorp.com> [john.hufnagel@exeloncorp.com]
Sent: Monday, April 14, 2008 10:06 AM To: Donnie Ashley
Subject:
Draft telecon minutes Follow Up Flag: Follow up Flag Status: Flagged
- Donnie, Here are a few proposed changes. Sorry I didn't know how to indicate crossed out text in an e-mail, but the additions should be in a different color, and the first draft is repeated below for comparison. Please let me know if you want to discuss further - I'm heading up to TMI for some training now...
- John.
The U.S. Nuclear Regulatory Commission staff (NRC or the staff), and representatives of AmerGen Energy Company, LLC (AmerGen or the applicant), held a telephone conference call on April 7, 2008, to discuss the question of industry experience as it relates to metal fatigue and the use of simplified calculations in developing environmental fatigue analyses for the period of extended operation. The conference call was useful in clarifying the applicant's use of these methods.
During the evaluation of the Vermont Yankee license renewal application and hearing process, the staff has become aware that the industry may be using a non-conservative calculation to evaluate metal fatigue in BWRs.
The calculation involves the use of "Green Functions" and limiting stress component difference (versus using all six stress components) as a simplification to the analysis.
The applicant stated that the only environmental fatigue analysis where Green Functions and limiting stress component difference were used is for the Reactor Recirculation outlet nozzle.
The applicant stated that they were aware of the issue. The applicant stated that they have plans to perform a confirmatory analysis of the outlet nozzle, using the more conservative calculations, to insure that the components cumulative usage factor (CUF) is within specifications.
The applicant will provide the results of.the analysis to the staff. The applicant plans to complete the analysis within 30 days.
Original Message -----
From: D. Ashley [1]
Sent: Thursday, April 10, 2008 12:48 PM To: Hufnagel Jr, John G
Subject:
draft - summary of telecon John-I have to go to a meeting in a few minutes and am off on Friday.
Here is the first cut at a summary of our telecon.
please review and comment.
also, I need the name of the company that Gary Stevens works for....
Is his name spelled correctly?
-Donnie 14
DISCUSSION OF INDUSTRY EXPERIENCE OYSTER CREEK NUCLEAR GENERATING STATION LICENSE RENEWAL APPLICATION April 7, 2008 The U.S. Nuclear Regulatory Commission staff (NRC or the staff), and representatives of AnmerGen Energy Company, LLC (AmerGen or the applicant), held a telephone conference call on April 7, 2008, to discuss the question of industry experience as it relates to metal fatigue and the use of simplified calculations in the "Fatigue Pro" software program. The conference call was useful in clarifying the applicant's use of the "Fatigue Pro" software.
During the evaluation of the Vermont Yankee license renewal application and hearing process, the staff has become aware that the industry may be using a non-conservative calculation to evaluate metal fatigue in BWRs.
The calculation involves the use of "Green Functions" as a simplification to the analysis.
The applicant stated that the only component where Green Functions were used is the Reactor Recirculation outlet nozzle. None of the other calculations involved the use of Green Functions
- The applicant stated that they were aware of the issue. The applicant stated that they have plans to perform a confirmatory analysis of the outlet nozzle, using the more conservative calculations, to insure that the components cumulative usage factor (CUF) is within specifications.
The applicant will provide the results of the analysis to the staff. The applicant plans to complete the analysis within-30 days.
Donnie Ashley NRR/DLR/RPB 1 License Renewal Project Manager for Oyster Creek 301-415-3191 di a1(nrc.gov <mailto:diaI((1nrc.gov>
- This e-mail and any of its attachments may contain Exelon Corporation proprietaryN formation, which is privileged, confidential, or subject to copyright belonging to the Exelon Corporation famil f Companies. his e-mail is intended solely for the use of the individual or entity to which it is addressed. If ar ot the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, c in , or action taken in relation to the contents of and attachments to this e-mail is strictly pro i ed and may unlawful. If you have received this e-mail in error, please notify the sender immediatel and permanently deiet e original and any copy of this e-mail and any printout. Thank You.