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MONTHYEARML16307A4902016-10-25025 October 2016 Presentation Slides from Public Meeting Calvert Cliffs GSI-191 Resolution Update Project stage: Meeting ML16328A2832016-11-18018 November 2016 Supplemental Presentation Slides for 10/25/2016 Public Meeting Via E-mail from K.Greene to R.Guzman Calvert Cliffs GSI-191 Resolution Update Project stage: Request ML16328A3472016-11-23023 November 2016 Memo to File: E-mail from R.Guzman to E.Villar Regarding Meeting Summary of Calvert Cliffs Nuclear Power Plant Units 1 and 2 - GSI-191 Resolution on 10/25/16 Project stage: Meeting ML17249A3202017-09-18018 September 2017 Summary of Meeting with Exelon Generation Company, LLC, on Planned Submittal of Risk-Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 Project stage: Meeting ML18136A4932018-05-16016 May 2018 Licensee'S Slides for Pre-Application Meeting W/Exelon Re Planned GSI-191 LAR for Calvert Cliffs (L-2016-LRM-0001) Project stage: Meeting ML18198A2922018-05-16016 May 2018, 17 May 2018, 18 July 2018 May 21, 2018, Meeting with Exelon Generation Company, LLC, on Planned Submittal of Risk-Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 (EPID L-2016-LRM-0001 Project stage: Request ML18197A2392018-06-19019 June 2018, 21 June 2018, 20 July 2018 Summary of June 21, 2018 Meeting with Exelon Generation Company, LLC Project stage: Request ML18171A0842018-06-21021 June 2018 GSI-191 Program Use of Risk Metrics for Containment Sump Tech Spec Operability Determination June 21, 2018 Public Meeting Slides (MF8521, MF8522; L-2016-LRM-0001) Project stage: Meeting ML18201A4062018-06-21021 June 2018 Plants, Units 1 and 2 - Exelon'S Response to NRC Questions Project stage: Other ML18197A4362018-07-18018 July 2018 May 21, 2018, Summary of Meeting with Exelon Generation Company, LLC, on Planned Submittal of Risk-Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 Project stage: Meeting ML18197A2292018-07-20020 July 2018 Summary of Meeting with Exelon Generation Company, Llc, on Planned Submittal of Risk Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 (CAC Nos. MF8521 and MF8522; EPID L-2016-LRM-0001) Project stage: Meeting 2018-05-16
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MONTHYEARML24250A1062024-09-0606 September 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24197A0162024-07-12012 July 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591 ML24108A1352024-05-20020 May 2024 Email to Christian Williams Re Decision on the Exemption Request for Calvert Cliffs ML24108A1312024-05-15015 May 2024 Email to Christian Williams Re Availability of Environmental Assessment for the Calvert Cliffs Exemption ML24131A0612024-05-10010 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) NRC-2024-0085, Response from State of MD Regarding Review of EA for Calvert Cliffs Exemption Request2024-05-0909 May 2024 Response from State of MD Regarding Review of EA for Calvert Cliffs Exemption Request ML24122B5072024-05-0101 May 2024 NRR E-mail Capture - 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MONTHYEARML24137A1882024-05-16016 May 2024 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - NRC Presentation Slides ML24100A7672024-04-11011 April 2024 Meeting Slides - Preapplication with Constellation on Planned Fleet Alternative Request to Adopt OMN-2 ML24089A2612024-04-0909 April 2024 Slides - Constellation - Pre-Application Regarding Hooded Masks 4/9/2024 Meeting Slides (L-2024-LLM-0041) ML24029A1742024-01-30030 January 2024 Constellation Pre-Application January 30, 2024, Meeting Slides - Proposed Alternative to Utilize Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion ML23317A0712023-11-14014 November 2023 NRC Pre-Submittal Meeting on November 14th, 2023 - TSTF-591 and Selected 50.69 License Condition Updates (EPID L-2023-LLM-0098) (Slides) ML23255A1042023-08-11011 August 2023 Slides - Constellation - Pre-Application EP 9/18/2023 Draft CEG Presubmittal SG Performance Monitoring Plan Meeting Handout ML23157A0352023-06-0606 June 2023 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - 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U.S Nuclear Regulatory Commission (NRC) - Four Element Risk-Informed Approach ML20163A6542020-06-18018 June 2020 2020 NRC Annual Assessment Webinar Presentation - Pennsylvania and Maryland Facilities (Beaver Valley, Calvert Cliffs, Limerick, Peach Bottom, Susquehanna) ML20169A5592020-06-16016 June 2020 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections (Rev 1) ML20163A6552020-06-16016 June 2020 6-16-20 Byron Unit 2 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections ML20168A3192020-06-15015 June 2020 Joint Annual Assessment Meeting for Pa/Md Power Plants - Webinar Presentation ML19246B7162019-08-29029 August 2019 Meeting Between NRC and Exelon Regarding Calvert Cliffs-2 LAR to Use Framatome ATF LTAs ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18276A0712018-10-0404 October 2018 Exelon'S Presentation for October 4, 2018 Public Pre-Submittal Meeting on Planned Calvert Cliffs 10CFR50.69 LAR ML18171A0842018-06-21021 June 2018 GSI-191 Program Use of Risk Metrics for Containment Sump Tech Spec Operability Determination June 21, 2018 Public Meeting Slides (MF8521, MF8522; L-2016-LRM-0001) ML18136A4932018-05-16016 May 2018 Licensee'S Slides for Pre-Application Meeting W/Exelon Re Planned GSI-191 LAR for Calvert Cliffs (L-2016-LRM-0001) ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML16328A2832016-11-18018 November 2016 Supplemental Presentation Slides for 10/25/2016 Public Meeting Via E-mail from K.Greene to R.Guzman Calvert Cliffs GSI-191 Resolution Update ML16307A4902016-10-25025 October 2016 Presentation Slides from Public Meeting Calvert Cliffs GSI-191 Resolution Update ML16274A0012016-09-30030 September 2016 PWR MSIP Analysis and Measurements ML16242A1782016-09-0101 September 2016 Presentation Slides from Public Meeting Regarding Calvert Cliffs GSI-191 Resolution Update ML16198A0012016-07-18018 July 2016 Presentation Slides from Public Meeting Regarding Calvert Cliffs GSI-191 Resolution Update ML16077A1562016-03-22022 March 2016 Fleet: Pre-application Teleconference with Exelon to Discuss a Potential License Amendment Request Regarding Operating Training Standards ML15321A3702015-12-0101 December 2015 GSI-191 Program Strainer Head Loss Testing and Option 2b Closure Approach ML15308A1072015-11-0505 November 2015 TSTF-505 LAR - NRC Pre-Submittal, November 5, 2015 Meeting Slides ML15279A4992015-10-0808 October 2015 October 8, 2015, Public Meeting Regarding the NFPA-805 License Amendment Application ML15282A0832015-10-0808 October 2015 October 8, 2015, Public Meeting Regarding the NFPA-805 License Amendment Application - Final ML15222A5472015-08-31031 August 2015 GSI 191 Program Chemical Effects Testing Update Option 2b Closure Approach ML15152A0822015-06-0404 June 2015 Presentation for the June 4, 2015 Public Meeting Regarding the National Fire Protection Association Standard 805 License Amendment Request ML14230A9132014-08-18018 August 2014 Enclosure - Fuel Performance and Cask Internals - July 17, 2014, Summary of Meeting with Exelon Corporation to Discuss Request for Additional Information No. 4 to the Calvert Cliffs ISFSI License Renewal Application (Docket No. 72-08) TAC L ML14230A9112014-08-18018 August 2014 Enclosure - Example AMP - July 17, 2014, Summary of Meeting with Exelon Corporation to Discuss Request for Additional Information No. 4 to the Calvert Cliffs ISFSI License Renewal Application (Docket No. 72-08) TAC L24475 2024-05-16
[Table view] |
Text
From: Greene, Ken:(GenCo-Nuc)
To: Guzman, Richard
Subject:
[External_Sender] FW: T/H Analysis Presentation Date: Friday, November 18, 2016 10:17:37 AM Attachments: RI GSI-191 TH Analysis Results.pdf
- Rich, Good morning. Attached is a presentation covering information Steve Smith, NRC, had requested to see.
Have a good Thanksgiving.
From: Sellers, Craig:(Contractor - GenCo-Nuc)
Sent: Friday, November 18, 2016 9:29 AM To: Greene, Ken:(GenCo-Nuc)
Cc: Drake, Andre S:(GenCo-Nuc); Salehi, Matthew:(GenCo-Nuc); Haydin, John S:(GenCo-Nuc); Lauver, Doug:(GenCo-Nuc)
Subject:
T/H Analysis Presentation
- Ken, Please submit the attached presentation to the Calvert Cliffs NRC Project Manager. Inform him that Steve Smith (NRC Staff) wanted to see this data.
- Thanks, Craig
___________________________
Craig D. Sellers Project Manager GSI-191 Resolution/GL 2004-02 Closure Calvert Cliffs Nuclear Power Plant (o) 410.495.4272 - Calvert Cliffs (c) 410.610.1164
___________________________
This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies. Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -
EXCIP
Calvert Cliffs GSI-191 Program Thermal Hydraulic Analysis of Containment Response Calculation CA10199 November 18, 2016
Thermal Hydraulic Analysis of Containment
- Investigate Sump Temperature and Containment Pressure
- Large Break LOCA Events
- LOCA Scenarios Presented
- 2 Trains of ESF (Maximum SI) - CCX
- Single Train of ESF (Minimum SI) - CCI
- 2 Trains of ESF (Maximum SI) - HHX
- Single Train of ESF (Minimum SI) - HHI
- 2 ft2 Break, Single Train of ESF - H2I 1 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Thermal Hydraulic Analysis of Containment (Cont.)
- Containment Response Scenarios Evaluated
- Scenario A: 2 Containment Air Coolers (CACs) Operating
- Determine if containment pressure is reduced to 2.8 psig prior to sump fluid temperature reducing to 140°F.
- Scenario B: 4 CACs Operating
- Determine how quickly the containment pressure could drop to sub-atmospheric conditions in the strainer.
- Scenario C: 4 CACs Operating
- Determine, for the case where no single failures have occurred (4 CACs and 2 Containment Spray Pumps operating), if the containment response profile remains below the EQ profile.
- When the first CS Pump is secured (at 2.8 psig), the other CS Pump is lost for 30 minutes and two (2) CACs are lost indefinitely.
- Scenario D: Repeat Scenario C with the following change:
- When the first CS Pump is secured (at 2.8 psig), the other CS Pump is lost for 30 minutes.
- Scenario E: Repeat Scenario C with the following change:
- When the first CS Pump is secured (at 2.8 psig) and one HPSI pump is also secured, the other CS Pump and the other HPSI pump are lost for 30 minutes. Two CACs are also assumed to be lost indefinitely.
2 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Typical Containment Pressure Profile 50 45 Pressure Increase due to increase in M&E release 40 from RCS reflood spillage 35 Pressure Reduction Pressure Reduction Containment Pressure (psig) 30 due to reduction in due to heat removal M&E release and heat by CS and CACs 25 removal by heat sinks 20 15 RAS 10 CS Pump Trip 5
0 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 3 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Typical Containment Air Temperature Profile 300 280 260 Temp Reduction due 240 to heat removal by Temp Reduction due CS and CACs to reduction in M&E Temperature (F) 220 release and heat RAS 200 removal by heat sinks 180 160 140 CS Pump Trip 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 4 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Typical Sump Temperature Profile - Hot Leg Break 300 280 260 240 Temperature (F) 220 RAS 200 180 CS Pump Trip 160 140 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 5 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Typical Sump Temperature Profile - Cold Leg Break 300 280 260 240 Temperature (F) 220 RAS 200 180 CS Pump Trip 160 140 Temp Reduction due to SI spillage from break 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 6 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario A - Containment Pressure 50 45 CCX CCI 40 HHX 35 HHI H2I Containment Pressure (psig) 30 25 20 15 10 5
0 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 7 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario A - Containment Air Temperature 300 280 CCX 260 CCI HHX 240 HHI Temperature (F) 220 H2I 200 180 160 140 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 8 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario A - Sump Temperature 300 280 CCX CCI 260 HHX 240 HHI H2I Temperature (F) 220 200 180 160 140 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 9 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario B - Containment Pressure 50 45 CCX 40 CCI HHX 35 HHI Pressure (psig) 30 H2I 25 20 15 10 5
0 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 10 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario B - Containment Air Temperature 300 280 CCX CCI 260 HHX 240 HHI Temperature (F) 220 H2I 200 180 160 140 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 11 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario B - Sump Temperature 300 280 CCX CCI 260 HHX 240 HHI Temperature (F) 220 H2I 200 180 160 140 120 100 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 Time (s) 12 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Thermal Hydraulic Analysis Results
- Hot Leg Break - Hot Leg Break
- Time to 140°F = 108.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />
- Time to 140°F = 86.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
- Time to 2.8 psig = 47.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />
- Time to 2.8 psig = 23.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />
- Time to secure pump = 61.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
- Time to secure pump = 62.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />
- Pressure @ 140°F = 1.98 psig
- Pressure @ 140°F = 1.95 psig
- Cold Leg Break - Cold Leg Break
- Time to 140°F = 77.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />
- Time to 140°F = 50.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />
- Time to 2.8 psig = 63.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />
- Time to 2.8 psig = 38.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />
- Time to secure pump = 13.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />
- Time to secure pump = 11.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
- Pressure @ 140°F = 2.58 psig
- Pressure @ 140°F = 2.63 psig 13 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario C - Containment Pressure & Temperature 60 300 280 CCX CCX 50 260 HHX HHX 240 ES-014 ES-014 40 (EQ)
(EQ)
Pressure (psig) Temperature (F) 220 30 200 180 20 160 140 10 120 0 100 1.E-01 1.E+01 1.E+03 1.E+05 1.E+07 1.E-01 1.E+01 1.E+03 1.E+05 1.E+07 Time (s) Time (s) 14 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario D - Containment Pressure & Temperature 50 300 45 CCX 280 CCX HHX HHX 40 260 ES-014 ES-014 35 240 Pressure (psig) Temperature (F) 30 220 25 200 20 180 15 160 10 140 5 120 0 100 1.E-01 1.E+01 1.E+03 1.E+05 1.E+07 1.E-01 1.E+01 1.E+03 1.E+05 1.E+07 Time (s) Time (s) 15 Calvert Cliffs GSI-191 Containment Response T/H Analyses
Scenario E - Containment Pressure & Temperature 50 300 45 CCX 280 CCX HHX HHX 40 260 ES-014 (EQ) ES-014 (EQ) 35 240 Pressure (psig) Temperature (F) 30 220 25 200 20 180 15 160 10 140 5 120 0 100 1.E-01 1.E+01 1.E+03 1.E+05 1.E+07 1.E-01 1.E+01 1.E+03 1.E+05 1.E+07 Time (s) Time (s) 16 Calvert Cliffs GSI-191 Containment Response T/H Analyses