|
|
(3 intermediate revisions by the same user not shown) |
Line 2: |
Line 2: |
| | number = ML16362A084 | | | number = ML16362A084 |
| | issue date = 12/23/2016 | | | issue date = 12/23/2016 |
| | title = (External_Sender) Response to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads | | | title = NRR E-mail Capture - (External_Sender) Response to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads |
| | author name = Weber T N | | | author name = Weber T |
| | author affiliation = Arizona Public Service Co | | | author affiliation = Arizona Public Service Co |
| | addressee name = Regner L M | | | addressee name = Regner L |
| | addressee affiliation = NRC/NRR/DORL/LPLIV-1 | | | addressee affiliation = NRC/NRR/DORL/LPLIV-1 |
| | docket = 05000530 | | | docket = 05000530 |
Line 16: |
Line 16: |
|
| |
|
| =Text= | | =Text= |
| {{#Wiki_filter:1 NRR-PMDAPEm Resource From: Thomas.N.Weber@aps.com Sent: Friday, December 23, 2016 3:01 PM To: Regner, Lisa Cc: Lingam, Siva; George.Andrews@ap s.com; Maria.Lacal@aps.com; Delbert.Elkinton@aps.com; Michael.Dilorenzo@aps.com | | {{#Wiki_filter:NRR-PMDAPEm Resource From: Thomas.N.Weber@aps.com Sent: Friday, December 23, 2016 3:01 PM To: Regner, Lisa Cc: Lingam, Siva; George.Andrews@aps.com; Maria.Lacal@aps.com; Delbert.Elkinton@aps.com; Michael.Dilorenzo@aps.com |
|
| |
|
| ==Subject:== | | ==Subject:== |
| [External_Sender] REsponse to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads Lisa, Here is the response to the question we received earlier today on the difference in loads between the BTP 8-8 and Station Blackout. The RAI asks, In the Station Blackout (SBO) reanalysis submitted by Arizona Public Service Company (the licensee) on October 28, 2005, the licensee calculated a maximum SBO load of approximately 3364 kW to be carried by a gas turbine generator rated 3400 kW. In the current license amendment request submitted on December 21, 2016, the licensee calculated a maximum SBO load of 4494 kW to be carried by three portable diesel ge nerators with a total rating of 4800 kW. Please explain the load differences between the two submittals. | | [External_Sender] REsponse to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads |
| APS Response | | : Lisa, Here is the response to the question we received earlier today on the difference in loads between the BTP 8-8 and Station Blackout. The RAI asks, In the Station Blackout (SBO) reanalysis submitted by Arizona Public Service Company (the licensee) on October 28, 2005, the licensee calculated a maximum SBO load of approximately 3364 kW to be carried by a gas turbine generator rated 3400 kW. In the current license amendment request submitted on December 21, 2016, the licensee calculated a maximum SBO load of 4494 kW to be carried by three portable diesel generators with a total rating of 4800 kW. Please explain the load differences between the two submittals. |
| : The 2005 Revised Station Blackout (SBO) Evaluation submittal provided a list of loads that would be required for the 16 hour Station Blackout coping analysis. It should be noted that the Station Blackout Generators (SBOG) are connected to the A train ESF bus and it is assumed that only A train components, including the steam dr iven Auxiliary Feedwater Pump A will be relied upon to safely shutdown the plant. The current submittal is in support of the B train Emergency Diesel Generator (EDG) outage and includes all B train loads that would be initially sequenced onto an Emergency Diesel Generator during a LOP/FS (Loss of Offsite Power/Forc ed Shutdown) event in addition to loads that would be started later for shutdown coo ling. The SBO for Train A and LOOP for Train B loading lists are significantly differ ent. The LOOP train B loading list contains loads not included in the SBO Train A list, such as: The Motor Driven Au xiliary feedwater pump (948kw) , Low Pressure Safety Injection pumps (418 kw), and Containment ventilation fans (totaling 618kw). The SBO list includes the High Pressure Safety Injection pump, (786kw), whic h is not included in the LOOP list. For diesel generator design basis loading consid erations, it includes al l Train B loads that are either sequenced on during a LOP/LS or could be manually closed in. The SBO Train A list is a more selective list of those loads necessary to safely shutdown the unit. This submittal chose the more conservative LOOP without load shedding to maximize compliance with the LOOP loads referenced in BTP 8-8.
| | APS Response: |
| | The 2005 Revised Station Blackout (SBO) Evaluation submittal provided a list of loads that would be required for the 16 hour Station Blackout coping analysis. It should be noted that the Station Blackout Generators (SBOG) are connected to the A train ESF bus and it is assumed that only A train components, including the steam driven Auxiliary Feedwater Pump A will be relied upon to safely shutdown the plant. The current submittal is in support of the B train Emergency Diesel Generator (EDG) outage and includes all B train loads that would be initially sequenced onto an Emergency Diesel Generator during a LOP/FS (Loss of Offsite Power/Forced Shutdown) event in addition to loads that would be started later for shutdown cooling. The SBO for Train A and LOOP for Train B loading lists are significantly different. The LOOP train B loading list contains loads not included in the SBO Train A list, such as: The Motor Driven Auxiliary feedwater pump (948kw) , Low Pressure Safety Injection pumps (418 kw), and Containment ventilation fans (totaling 618kw). The SBO list includes the High Pressure Safety Injection pump, (786kw), which is not included in the LOOP list. For diesel generator design basis loading considerations, it includes all Train B loads that are either sequenced on during a LOP/LS or could be manually closed in. The SBO Train A list is a more selective list of those loads necessary to safely shutdown the unit. This submittal chose the more conservative LOOP without load shedding to maximize compliance with the LOOP loads referenced in BTP 8-8. |
| The brief high level reconciliation of the differences are as follows. | | The brief high level reconciliation of the differences are as follows. |
| SBO 2005 submittal for A train: 3354kw For current submittal associated with U3 DG B train LOOP, take the SBO load stated above (3354 kw) and then add Aux feed B 948kw + containment ventilation 618kw+ Low pressure Safety injection 418kw - High pressure safety injection 786kw = 4552kw.(N ote: This is very close to the total value of 4558 kw used in the LAR submittal. These values are taken from different scenarios with slightly 2 different load assumptions so the load numbers between the SBO and LOOP list discussed here will not reconcile exactly) | | SBO 2005 submittal for A train: 3354kw For current submittal associated with U3 DG B train LOOP, take the SBO load stated above (3354 kw) and then add Aux feed B 948kw + containment ventilation 618kw+ Low pressure Safety injection 418kw - High pressure safety injection 786kw = 4552kw.(Note: This is very close to the total value of 4558 kw used in the LAR submittal. These values are taken from different scenarios with slightly 1 |
|
| |
|
| Hearing Identifier: NRR_PMDA Email Number: 3231 Mail Envelope Properties (EB0C94E90ED2EF409E17260ECE38B14E20A50985) | | different load assumptions so the load numbers between the SBO and LOOP list discussed here will not reconcile exactly) 2 |
| | |
| | Hearing Identifier: NRR_PMDA Email Number: 3231 Mail Envelope Properties (EB0C94E90ED2EF409E17260ECE38B14E20A50985) |
|
| |
|
| ==Subject:== | | ==Subject:== |
| [External_Sender] REsponse to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads Sent Date: 12/23/2016 3:01:18 PM Received Date: 12/23/2016 3:01:25 PM From: Thomas.N.Weber@aps.com Created By: Thomas.N.Weber@aps.com Recipients: "Lingam, Siva" <Siva.Lingam@nrc.gov> Tracking Status: None "George.Andrews@aps.com" <George.Andrews@aps.com> Tracking Status: None "Maria.Lacal@aps.com" <Maria.Lacal@aps.com>
| | [External_Sender] REsponse to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads Sent Date: 12/23/2016 3:01:18 PM Received Date: 12/23/2016 3:01:25 PM From: Thomas.N.Weber@aps.com Created By: Thomas.N.Weber@aps.com Recipients: |
| Tracking Status: None "Delbert.Elkinton@aps.com" <Delbert.Elkinton@aps.com> Tracking Status: None "Michael.Dilorenzo@aps.com" <Michael.Dilorenzo@aps.com> Tracking Status: None "Regner, Lisa" <Lisa.Regner@nrc.gov> | | "Lingam, Siva" <Siva.Lingam@nrc.gov> |
| Tracking Status: None Post Office: ntm211.apsc.com | | Tracking Status: None "George.Andrews@aps.com" <George.Andrews@aps.com> |
| | | Tracking Status: None "Maria.Lacal@aps.com" <Maria.Lacal@aps.com> |
| Files Size Date & Time MESSAGE 2954 12/23/2016 3:01:25 PM | | Tracking Status: None "Delbert.Elkinton@aps.com" <Delbert.Elkinton@aps.com> |
| | | Tracking Status: None "Michael.Dilorenzo@aps.com" <Michael.Dilorenzo@aps.com> |
| Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:}} | | Tracking Status: None "Regner, Lisa" <Lisa.Regner@nrc.gov> |
| | Tracking Status: None Post Office: ntm211.apsc.com Files Size Date & Time MESSAGE 2954 12/23/2016 3:01:25 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: |
| | Recipients Received:}} |
|
---|
Category:E-Mail
MONTHYEARML24011A1002024-01-10010 January 2024 March 2024 Emergency Preparedness Program Inspection - Request for Information ML23334A1612023-11-30030 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - RAIs Associated with License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23334A0072023-11-29029 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR That Revises TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23298A1232023-10-25025 October 2023 NRR E-mail Capture - Palo Verde, Unit 1 - RAIs for Relief Request 70, Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle ML23243B0082023-08-31031 August 2023 NRR E-mail Capture - Action: Opportunity to Review and Comment on a New NRC Information Collection, 10 CFR Part 50.55a, Codes and Standards (3150-XXXX) ML23233A0132023-08-18018 August 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23220A0512023-08-0303 August 2023 NRR E-mail Capture - Re Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 22 ML23202A0162023-07-20020 July 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Revise TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23143A1332023-05-23023 May 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR Revising TS 3.3.11 to Adopt TSTF-266-A, Rev. 3, Eliminate the Remote Shutdown System Table of Instrumentation and Controls ML23130A0132023-05-10010 May 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for Authorized Use of Mururoa Supplied Air Suits (Models V4F1 and MTH2) Pursuant to 10 CFR 20.1703 and 10 CFR 20.1705 ML23017A0932023-01-17017 January 2023 NRR E-mail Capture - Palo Verde - Acceptance of License Amendment Request Regarding Adoption of TSTF-107, Separate Control Rods That Are Untrippable Versus Inoperable (L-2022-LLA-0181) ML23013A0632023-01-13013 January 2023 NRR E-mail Capture - Palo Verde Unit 1 -Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22348A1672022-12-14014 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22339A2372022-12-0505 December 2022 NRR E-mail Capture - Palo Verde Unit 1 Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22173A0682022-06-17017 June 2022 Email Concurrence on SE Input for Columbia Pltr LAR ML22167A1872022-06-16016 June 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Revised Acceptance Review of LAR to Adopt TSTF-567, Add Containment Sump TS to Address GSI-191 Issues ML22136A0922022-05-16016 May 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Adopt TSTF-487-A, Revision 1, Relocate DNB Parameters to the COLR ML22075A1902022-03-16016 March 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Adopt TSTF-567, Add Containment Sump TS to Address GSI-191 Issues ML22055A5842022-02-24024 February 2022 NRR E-mail Capture - Palo Verde, Unit 3 - Final RAIs for 22nd Refueling Outage (Spring 2021) Steam Generator Tube Inservice Inspection Report ML22034A0132022-02-0202 February 2022 NRR E-mail Capture - Palo Verde, Unit 2 - Verbal Approval of RR-69 to Extend Containment Tendon Inspection from 2/8/22 to 6/8/22 ML22032A0312022-01-31031 January 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for an Exemption Regarding Elimination of Dafas Using RIPE Process ML22025A4012022-01-0303 January 2022 March 2022 Emergency Preparedness Program Inspection - Request for Information ML21333A1982021-11-19019 November 2021 NRC Review of PVNGS Training Needs Analysis and Training Required by Condition I of the Confirmatory Order EA-20-054 ML21306A1882021-10-18018 October 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Second Pre-submittal Meeting for the Proposed Exemption to Eliminate Dafas Using RIPE Process ML21272A0592021-09-28028 September 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 21 ML21264A1352021-09-17017 September 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Acceptance Review of LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21237A0762021-08-25025 August 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of RR-67, Request for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection ML21228A0082021-08-16016 August 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of an LAR for Administrative Changes to Technical Specifications ML21228A1042021-08-12012 August 2021 RR-67, Request for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (EPID L-2021-LLR-0050) (Email) ML21237A5172021-08-10010 August 2021 Email to PV Licensee and Palo Verde Nuclear Generating Station, Units 1, 2 and 3 - Notification of Inspection of the Licensees Implementation Industry Initiative Associated with the Open Phase Condition (NRC Bulletin 2012-01) and Request Fo ML21160A1442021-06-0909 June 2021 NRR E-mail Capture - Palo Verde 1 and, 2 - Acceptance Review for Order Approving Transfers of Control of Licenses for Minority Interests Subject to Expiring Leases ML21154A0082021-05-26026 May 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Official RAIs for LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21146A3342021-05-14014 May 2021 ISFSI - Final Package for an Order Associated with Indirect Transfers of Control of Licenses from Pnm to Avangrid ML21132A2372021-05-12012 May 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3, and ISFSI - Final Package for an Order Associated with Indirect Transfers of Control of Licenses from Pnm to Avangrid ML21103A3632021-04-13013 April 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for Indirect Transfer of Control of Licenses Pursuant to 10 CFR 50.80 and 10 CFR 72.50 ML21064A2372021-03-0303 March 2021 ISI Request for Information Rls ML21053A0262021-02-22022 February 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Acceptance Review of LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21043A1462021-02-11011 February 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAI for an Order Associated with Indirect License Transfer from Public Service Company of New Mexico to Avangrid, Inc ML21023A0212021-01-13013 January 2021 PVNGS PI&R Request for Information RA ML20366A1682020-12-31031 December 2020 NRR E-mail Capture - Palo Verde 1, 2, and 3, and ISFSI - Acceptance Review of an Order Associated with Indirect Transfers of Control of Licenses ML21005A2712020-12-29029 December 2020 102-08208 PVNGS Communication Required by Confirmatory Order EA-20-054 ML20325A0392020-11-19019 November 2020 NRR E-mail Capture - Palo Verde 2 - Verbal Authorization of RR 66 to Extend Containment Tendon Inspection by One Year Based on 10 CFR 50.55a(Z)(2) ML20316A0162020-11-0909 November 2020 NRR E-mail Capture - Palo Verde 2 - Acceptance Review of RR 66, Request Containment Post-Tensioning System Inspection One-Time by One Year Due to COVID-19 Pandemic ML20295A4912020-10-21021 October 2020 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR Associated with Adopting TSTF-501, Relocate Stored Fuel Oil and Lube Oil Volumes to Licensee Control ML20265A0982020-09-21021 September 2020 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of License Amendment Associated with Making Necessary Administrative Changes to Technical Specifications ML20108E9462020-04-16016 April 2020 NRR E-mail Capture - (External_Sender) Clarification to PVNGS Part 26 Exemption Request (ML20105A481) ML20091K0752020-03-31031 March 2020 NRR E-mail Capture - Palo Verde 2 - Acceptance Review of RR 65, Request for Relief from RPV Bottom Mounted Instrumentation Nozzles and a Pressurizer Surge Line Weld Overlay Examination ML20091M1992020-03-31031 March 2020 NRR E-mail Capture - Palo Verde 2 - Verbal Authorization of RR 65, Request for Relief from RPV Bottom Mounted Instrumentation Nozzles and a Pressurizer Surge Line Weld Overlay ISI Examinations ML20050C9742020-02-19019 February 2020 NRR E-mail Capture - Palo Verde 1,2, and 3 - Framatome Htp Fuel LAR and Exemption Third Audit Summary (EPIDs L-2018-LLA-0194 and L-2018-LLE-0010) 2024-01-10
[Table view] |
Text
NRR-PMDAPEm Resource From: Thomas.N.Weber@aps.com Sent: Friday, December 23, 2016 3:01 PM To: Regner, Lisa Cc: Lingam, Siva; George.Andrews@aps.com; Maria.Lacal@aps.com; Delbert.Elkinton@aps.com; Michael.Dilorenzo@aps.com
Subject:
[External_Sender] REsponse to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads
- Lisa, Here is the response to the question we received earlier today on the difference in loads between the BTP 8-8 and Station Blackout. The RAI asks, In the Station Blackout (SBO) reanalysis submitted by Arizona Public Service Company (the licensee) on October 28, 2005, the licensee calculated a maximum SBO load of approximately 3364 kW to be carried by a gas turbine generator rated 3400 kW. In the current license amendment request submitted on December 21, 2016, the licensee calculated a maximum SBO load of 4494 kW to be carried by three portable diesel generators with a total rating of 4800 kW. Please explain the load differences between the two submittals.
APS Response:
The 2005 Revised Station Blackout (SBO) Evaluation submittal provided a list of loads that would be required for the 16 hour1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> Station Blackout coping analysis. It should be noted that the Station Blackout Generators (SBOG) are connected to the A train ESF bus and it is assumed that only A train components, including the steam driven Auxiliary Feedwater Pump A will be relied upon to safely shutdown the plant. The current submittal is in support of the B train Emergency Diesel Generator (EDG) outage and includes all B train loads that would be initially sequenced onto an Emergency Diesel Generator during a LOP/FS (Loss of Offsite Power/Forced Shutdown) event in addition to loads that would be started later for shutdown cooling. The SBO for Train A and LOOP for Train B loading lists are significantly different. The LOOP train B loading list contains loads not included in the SBO Train A list, such as: The Motor Driven Auxiliary feedwater pump (948kw) , Low Pressure Safety Injection pumps (418 kw), and Containment ventilation fans (totaling 618kw). The SBO list includes the High Pressure Safety Injection pump, (786kw), which is not included in the LOOP list. For diesel generator design basis loading considerations, it includes all Train B loads that are either sequenced on during a LOP/LS or could be manually closed in. The SBO Train A list is a more selective list of those loads necessary to safely shutdown the unit. This submittal chose the more conservative LOOP without load shedding to maximize compliance with the LOOP loads referenced in BTP 8-8.
The brief high level reconciliation of the differences are as follows.
SBO 2005 submittal for A train: 3354kw For current submittal associated with U3 DG B train LOOP, take the SBO load stated above (3354 kw) and then add Aux feed B 948kw + containment ventilation 618kw+ Low pressure Safety injection 418kw - High pressure safety injection 786kw = 4552kw.(Note: This is very close to the total value of 4558 kw used in the LAR submittal. These values are taken from different scenarios with slightly 1
different load assumptions so the load numbers between the SBO and LOOP list discussed here will not reconcile exactly) 2
Hearing Identifier: NRR_PMDA Email Number: 3231 Mail Envelope Properties (EB0C94E90ED2EF409E17260ECE38B14E20A50985)
Subject:
[External_Sender] REsponse to Question from NRC Earlier Today on SBO Loads and Cold Shutdown Loads Sent Date: 12/23/2016 3:01:18 PM Received Date: 12/23/2016 3:01:25 PM From: Thomas.N.Weber@aps.com Created By: Thomas.N.Weber@aps.com Recipients:
"Lingam, Siva" <Siva.Lingam@nrc.gov>
Tracking Status: None "George.Andrews@aps.com" <George.Andrews@aps.com>
Tracking Status: None "Maria.Lacal@aps.com" <Maria.Lacal@aps.com>
Tracking Status: None "Delbert.Elkinton@aps.com" <Delbert.Elkinton@aps.com>
Tracking Status: None "Michael.Dilorenzo@aps.com" <Michael.Dilorenzo@aps.com>
Tracking Status: None "Regner, Lisa" <Lisa.Regner@nrc.gov>
Tracking Status: None Post Office: ntm211.apsc.com Files Size Date & Time MESSAGE 2954 12/23/2016 3:01:25 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received: