ML121290329: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
| Line 15: | Line 15: | ||
=Text= | =Text= | ||
{{#Wiki_filter:May 17, 2012 | {{#Wiki_filter:May 17, 2012 Mr. Alex Marion Vice President, Nuclear Operations Nuclear Energy Institute 1776 I Street NW, Suite 400 Washington, DC 20006-3708 | ||
Mr. Alex Marion Vice President, Nuclear Operations Nuclear Energy Institute 1776 I Street NW, Suite 400 Washington, DC | |||
==SUBJECT:== | ==SUBJECT:== | ||
REQUEST FOR ASSISTANCE IN IDENTIFYING LICENSEE VOLUNTEERS FOR AN EXTENDED BATTERY OPERATION STUDY | REQUEST FOR ASSISTANCE IN IDENTIFYING LICENSEE VOLUNTEERS FOR AN EXTENDED BATTERY OPERATION STUDY | ||
==Dear Mr. Marion:== | ==Dear Mr. Marion:== | ||
The U.S. Nuclear Regulatory Commission (NRC) staff is requesting the Nuclear Energy | The U.S. Nuclear Regulatory Commission (NRC) staff is requesting the Nuclear Energy Institutes (NEIs) support in the performance of a study to fully evaluate a commercial nuclear power plant (NPP) batteries response to station blackout (SBO) events outside the scope of the current SBO rule (i.e., extended SBO events). Specifically, the NRC requests the NEI obtain volunteers to provide existing and revised SBO profiles. These profiles should address the condition where all alternating current (AC) power is recognized to be lost for a prolonged period within 10 minutes of an SBO event. The profiles should reflect the loads necessary to bring the plant to a safe shutdown condition. | ||
On April 4, 2012, an addendum to the Memorandum of Understanding was executed between the | On April 4, 2012, an addendum to the Memorandum of Understanding was executed between the NRCs Office of Nuclear Regulatory Research (RES), the Electric Power Research Institute, and the Department of Energy to participate in this study. Together with the information provided by the NEI, the NRC staff expects to more fully understand the capability of station batteries for an extended duration. | ||
The testing is comprised of two sequences. The first sequence will verify how long the batteries can operate at reduced discharge rates. The series of tests is intended to provide a bounding set of performance expectations for extended battery operation under lower load conditions to provide data that shows the state of health of the batteries. The second sequence will test the batteries to the modified SBO profiles to determine how long the battery can support maintaining the plant in a safe shutdown condition. The NRC staff plans to have the Brookhaven National Lab test batteries to the modified SBO profiles to demonstrate the capability of station batteries for an extended duration (i.e., beyond 4 hours). | The testing is comprised of two sequences. The first sequence will verify how long the batteries can operate at reduced discharge rates. The series of tests is intended to provide a bounding set of performance expectations for extended battery operation under lower load conditions to provide data that shows the state of health of the batteries. The second sequence will test the batteries to the modified SBO profiles to determine how long the battery can support maintaining the plant in a safe shutdown condition. The NRC staff plans to have the Brookhaven National Lab test batteries to the modified SBO profiles to demonstrate the capability of station batteries for an extended duration (i.e., beyond 4 hours). | ||
On April 16, 2012, Sequence 1 began and it is estimated to conclude around September 2012. Sequence 2 will be performed once the profiles have been provided and once the revised profiles have been reviewed to verify the validity of the load sequence assumptions. | On April 16, 2012, Sequence 1 began and it is estimated to conclude around September 2012. | ||
Sequence 2 will be performed once the profiles have been provided and once the revised profiles have been reviewed to verify the validity of the load sequence assumptions. | |||
We anticipate that the volunteer licensees for this project and the NEI could obtain several benefits from participating in this study. Participation will provide the NRC staff with direct current (DC) load profiles to be modeled and tested, which should yield test results more closely representing existing station battery SBO coping capabilities. The goal is to use the insights gained through the cooperative research program to potentially develop and provide guidance to extend battery performance during a prolonged SBO event. | We anticipate that the volunteer licensees for this project and the NEI could obtain several benefits from participating in this study. Participation will provide the NRC staff with direct current (DC) load profiles to be modeled and tested, which should yield test results more closely representing existing station battery SBO coping capabilities. The goal is to use the insights gained through the cooperative research program to potentially develop and provide guidance to extend battery performance during a prolonged SBO event. | ||
The nuclear industry could benefit from the research data by the development of coping strategies for extended SBO events. | A. Marion The nuclear industry could benefit from the research data by the development of coping strategies for extended SBO events. | ||
Because of the testing, the RES staff will gain an improved understanding of station battery performance under select extended SBO load profiles. The results from the test program will be made available via a NUREG/CR. | Because of the testing, the RES staff will gain an improved understanding of station battery performance under select extended SBO load profiles. The results from the test program will be made available via a NUREG/CR. | ||
The NRC staff is requesting that the NEI obtain six NPPs willing to provide data in support of this study, including at least two pressurized water reactor designs, and two boiling water reactor designs. In order to meet the project schedule, we request that the volunteer sites be identified no later than June 29, 2012. Your assistance in this matter is greatly appreciated. Our technical contact for this project is Liliana Ramadan of RES. Responses and questions should be forwarded to Sheldon Stuchell at 301-415-1847 or via e-mail at Sheldon.Stuchell@nrc.gov. Sincerely, | The NRC staff is requesting that the NEI obtain six NPPs willing to provide data in support of this study, including at least two pressurized water reactor designs, and two boiling water reactor designs. In order to meet the project schedule, we request that the volunteer sites be identified no later than June 29, 2012. Your assistance in this matter is greatly appreciated. | ||
Our technical contact for this project is Liliana Ramadan of RES. Responses and questions should be forwarded to Sheldon Stuchell at 301-415-1847 or via e-mail at Sheldon.Stuchell@nrc.gov. | |||
Sincerely, | |||
/RA/ | |||
Timothy J. McGinty, Director Division of Policy and Rulemaking Office of Nuclear Reactor Regulation | |||
ML121290329 *concurred via e-mail | ML121290329 *concurred via e-mail NRR-106 OFFICE PLPB/PM PLPB/LA RES/DE/MEEB DE/EEEB/BC RES/DE/MEEB NAME SStuchell DBaxley LRamadan* JAndersen JBurke* | ||
DATE 5/8/2012 5/10/2012 5/10/2012 5/14/2012 5/10/2012 OFFICE PLPB/BC DPR/DD RES/DE/D DPR/D NAME JJolicoeur SBahadur MCase* TMcGinty DATE 5/10/2012 5/14/2012 5/16/2012 5/17/2012}} | |||
Latest revision as of 04:53, 12 November 2019
| ML121290329 | |
| Person / Time | |
|---|---|
| Site: | Nuclear Energy Institute |
| Issue date: | 05/17/2012 |
| From: | Mcginty T Licensing Processes Branch (DPR) |
| To: | Marion A Nuclear Energy Institute |
| Stuchell S, NRR/DPR,301-415-1847 | |
| References | |
| Download: ML121290329 (3) | |
Text
May 17, 2012 Mr. Alex Marion Vice President, Nuclear Operations Nuclear Energy Institute 1776 I Street NW, Suite 400 Washington, DC 20006-3708
SUBJECT:
REQUEST FOR ASSISTANCE IN IDENTIFYING LICENSEE VOLUNTEERS FOR AN EXTENDED BATTERY OPERATION STUDY
Dear Mr. Marion:
The U.S. Nuclear Regulatory Commission (NRC) staff is requesting the Nuclear Energy Institutes (NEIs) support in the performance of a study to fully evaluate a commercial nuclear power plant (NPP) batteries response to station blackout (SBO) events outside the scope of the current SBO rule (i.e., extended SBO events). Specifically, the NRC requests the NEI obtain volunteers to provide existing and revised SBO profiles. These profiles should address the condition where all alternating current (AC) power is recognized to be lost for a prolonged period within 10 minutes of an SBO event. The profiles should reflect the loads necessary to bring the plant to a safe shutdown condition.
On April 4, 2012, an addendum to the Memorandum of Understanding was executed between the NRCs Office of Nuclear Regulatory Research (RES), the Electric Power Research Institute, and the Department of Energy to participate in this study. Together with the information provided by the NEI, the NRC staff expects to more fully understand the capability of station batteries for an extended duration.
The testing is comprised of two sequences. The first sequence will verify how long the batteries can operate at reduced discharge rates. The series of tests is intended to provide a bounding set of performance expectations for extended battery operation under lower load conditions to provide data that shows the state of health of the batteries. The second sequence will test the batteries to the modified SBO profiles to determine how long the battery can support maintaining the plant in a safe shutdown condition. The NRC staff plans to have the Brookhaven National Lab test batteries to the modified SBO profiles to demonstrate the capability of station batteries for an extended duration (i.e., beyond 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />).
On April 16, 2012, Sequence 1 began and it is estimated to conclude around September 2012.
Sequence 2 will be performed once the profiles have been provided and once the revised profiles have been reviewed to verify the validity of the load sequence assumptions.
We anticipate that the volunteer licensees for this project and the NEI could obtain several benefits from participating in this study. Participation will provide the NRC staff with direct current (DC) load profiles to be modeled and tested, which should yield test results more closely representing existing station battery SBO coping capabilities. The goal is to use the insights gained through the cooperative research program to potentially develop and provide guidance to extend battery performance during a prolonged SBO event.
A. Marion The nuclear industry could benefit from the research data by the development of coping strategies for extended SBO events.
Because of the testing, the RES staff will gain an improved understanding of station battery performance under select extended SBO load profiles. The results from the test program will be made available via a NUREG/CR.
The NRC staff is requesting that the NEI obtain six NPPs willing to provide data in support of this study, including at least two pressurized water reactor designs, and two boiling water reactor designs. In order to meet the project schedule, we request that the volunteer sites be identified no later than June 29, 2012. Your assistance in this matter is greatly appreciated.
Our technical contact for this project is Liliana Ramadan of RES. Responses and questions should be forwarded to Sheldon Stuchell at 301-415-1847 or via e-mail at Sheldon.Stuchell@nrc.gov.
Sincerely,
/RA/
Timothy J. McGinty, Director Division of Policy and Rulemaking Office of Nuclear Reactor Regulation
ML121290329 *concurred via e-mail NRR-106 OFFICE PLPB/PM PLPB/LA RES/DE/MEEB DE/EEEB/BC RES/DE/MEEB NAME SStuchell DBaxley LRamadan* JAndersen JBurke*
DATE 5/8/2012 5/10/2012 5/10/2012 5/14/2012 5/10/2012 OFFICE PLPB/BC DPR/DD RES/DE/D DPR/D NAME JJolicoeur SBahadur MCase* TMcGinty DATE 5/10/2012 5/14/2012 5/16/2012 5/17/2012