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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20206S6461999-02-17017 February 1999
Summary of ACRS Reliability & Probabilistic Risk Assessment, Plant Operations & on Regulatory Policies & Practices Subcommittees 981119-20 Meeting in Rockville,Md Re Options Make 10CFR50 & 10CFR50.59 risk-informed
ML20206S4381999-01-25025 January 1999
Summary of 458th ACRS Meeting on 981203-05 in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S6611999-01-11011 January 1999
Summary of 981215-17 ACRS Thermal Hydraulic Phenomena Subcommittee Meeting in Rockville,Md Re T/H Code Activities/ NRC T/H Research Status
ML20206S6101998-12-23023 December 1998
Summary of ACRS Reliability & Probabilistic Risk Assessment Subcommittee 981029 Meeting in Rockville,Md Re Options to Make 10CFR50 risk-informed,NEI Whole Plant Study & Options for Developing risk-informed Approach,Revising 10CFR50.59
ML20206S8501998-11-13013 November 1998
Summary of 456th ACRS Meeting on 980930-1002 in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S2481998-11-12012 November 1998
Summary of 455th ACRS Meeting on 980902-04 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S7621998-11-12012 November 1998
Summary of 980924 ACRS Submommittee on Reliability & PRA Open Meeting in Rockville,Md Re Proposed Options for Developing risk-informed Approach to Revising 10CFR50.59, Options for Broader Changes to 10CFR50
ML20206S4161998-09-29029 September 1998
Summary of 980826 Open ACRS Subcommittee on Reliability & PRA Meeting in Rockville,Md Re Issues in SRM on situation-specific Cases Where PRA Results & Insights Have Improved Existing Regulatory Sys
ML20206S3851998-09-0303 September 1998
Summary of 980729 Open ACRS Joint Meeting of Subcommittees on Plant Operations & Fire Protection in Atlanta,Ga Re Region II Activities & Other Items of Mutual Interest, Including Significant Operating Events & Fire Protection
ML20206S6831998-09-0101 September 1998
Summary of 453rd ACRS Meeting on 980603-05 in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S3761998-08-24024 August 1998
Summary of 980716 ACRS Plant License Renewal Subcommittee Meeting in Rockville,Md Re Presentations by & Holding Discussions with NRC Staff Re License Renewal,Proposed Staff Plans & Schedule for Reviewing License Renewal Applications
ML20206S3811998-08-0404 August 1998
Summary of ACRS Safety Research Program Subcommittee Meeting on 980717 in Rockville,Md Re Comments & Recommendations in 980616 ACRS Rept, Core Research Capabilities & Associated Staff Response
ML20206S3721998-07-29029 July 1998
Summary of 980707 ACRS Advanced Reactor Designs Subcommittee Meeting in Rockville,Md Re Info on AP600 Test & Analysis Program & Responses to ACRS Questions Asked During Previous Meetings
ML20206S6721998-07-0808 July 1998
Summary of ACRS Safety Research Program Subcommittee 980601 Meeting in Rockville,Md Re Discussion with NRC Concerning SECY-98-076, Core Research Capabilities
ML20206S3671998-06-30030 June 1998
Summary of 980619 Open ACRS Meeting of Subcommittee on Plant Operations in Rockville,Md Re Proposed Changes to 10CFR50.59,status of Resolution of Issues Identified in 980324 SRM Related to SECY-97-205 & Related Matters
ML20206S3501998-06-26026 June 1998
Summary of 980617-18 ACRS Advanced Reactor Designs Subcommittee Meeting in Rockville,Md Re Review of Advance FSER Chapters 4,5,7,8,11,13 & 18,level 1 AP600 Pra,Itaac & Associated ACRS Open Questions
ML20206S5991998-06-23023 June 1998
Summary of ACRS Reactor Fuels,Onsite Fuel Storage & Decommissioning Subcommittee 980423-24 Meeting in Rockville, MD Re Basis of Proposed NRC Fuel Failure Criterion for High Burnup Conditions & Adequacy of NRC Fuel Codes
ML20206S3361998-06-22022 June 1998
Summary of 980611-12 Open ACRS Thermal Hydraulic & Severe Accident Phenomena Subcommittee Meeting in Rockville,Md Re Continuance of Review of Results of W Test & Analysis Program in Support of AP600 Design Certification
ML20206S6411998-06-22022 June 1998
Summary of 980601 ACRS Matls & Metallurgy Subcommittee Meeting in Rockville,Md Re NRC Staff Concerns Related to ASME Boiler & Pressure Vessel Code,Section III Rule Revs
ML20206S2561998-06-17017 June 1998
Summary of 452nd ACRS Meeting on 980430-0502 in Rockville, MD Re Items Listed in Attached Agenda
ML20206S6301998-06-17017 June 1998
Summary of 980602 ACRS Thermal Hydraulic & Severe Accident Phenomena Subcommitteemeeting in Rockville,Md Re GE Extended Power Uprate Program for Operating BWRs & NSP lead-plant Application for Power Uprate
ML20206S5761998-06-0404 June 1998
Summary of ACRS Reliability & Probabilistic Risk Assessment Subcommittee 980416 Meeting in Rockville,Md Re Subcommittees Review of Matters Related to Elevation of CDF & Possible Rev to Commissions Safety Goal Policy Statement
ML20206S5671998-05-30030 May 1998
Summary of ACRS Advanced Reactor Designs Subcommittee 980513-15 Meeting in Rockville,Md Re Review of AP600 Standard SAR & Associated Advanced FSER Chapters 3,6,14,16 & 17
ML20206S2521998-05-14014 May 1998
Summary of 451st ACRS Meeting on 980402-04 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S2801998-04-30030 April 1998
Summary of 980219-20 ACRS Open Meeting of Subcommittee on Reliability & Probabilistic Risk Assessment in Rockville,Md Re Continuance of Review of Proposed Final SRP Sections & RGs for risk-informed,performance-based Regulation
ML20206S2951998-04-15015 April 1998
Summary of 450th ACRS Meeting on 980305-07 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S2871998-04-15015 April 1998
Summary of 449th ACRS Meeting on 980302-04 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S6481998-03-26026 March 1998
Summary of ACRS Fire Protection Subcommittee 980122 Meeting in Rockville,Md Re Staff Actions Taken Related to Development of Revised Fire Protection Rule
ML20196L0531998-03-20020 March 1998
Summary of 980205-07 ACRS 448th Meeting in Rockville,Md Re Items Listed in Attached Agenda
ML20206S6561998-03-13013 March 1998
Summary of ACRS Plant License Renewal Subcommittee 980123 Meeting in Rockville,Md Re License Renewal Implementation Issues & Proposed Industry Guidelines
ML20206S2751998-03-0909 March 1998
Summary of 980218 ACRS Thermal Hydraulic & Severe Accident Phenomena Subcommittee Open Meeting in Rockville,Md Re Review of RES Program in Area of thermal-hydraulic Phenomena in Support of ACRS Planned Rept to Commission
ML20206S6791998-03-0505 March 1998
Summary of ACRS Plant Operations Subcommittee 980203 Meeting in Rockville,Md Re Subcommittee Review of Proposed Improvements to Senior Mgt Meeting Process
ML20217A8561998-03-0505 March 1998
Summary of ACRS 448th Meeting on 980205-07 Re Several Matters & Completed Listed Rept & Ltr.Committee Authorized Larkins,Executive Director,To Transmit Memoranda Listed
ML20206S2651998-02-23023 February 1998
Summary of 980203-04 ACRS Subcommittee on Advanced Reactor Designs Open Meeting in Rockville,Md Re Review of Chapters 1,4,5,7,8,11,13 & 18 of AP600 Ssar & AP600 Test & Analysis Program
IR 07100203/20064471998-02-0505 February 1998
Summary of 971203-06 447th ACRS Meeting in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S3931998-01-28028 January 1998
Summary of 980121 ACRS Subcommitee on Human Factors Meeting in Rockville,Md Re Human Performance & Reliability Plan & Integration of Human Factors Insights Into Insp Process
ML20217A8461998-01-0909 January 1998
Summary of ACRS Plant Operations Subcommittee 971202 Meeting in Rockville,Md Re SER on industry-sponsored Utility Resolution Guidance for Issue of Blockage of Suction Strainer in ECCS
ML20217A8771997-12-23023 December 1997
Summary of ACRS 446th Meeting on 971106-07 in Rockville,Md Re Appropriate Action on Items Listed on Attached Agenda.W/ Fr Notice,Meeting Schedule & Outline,List of Attendees, Future Agenda & List of Documents Provided to Committee
ML20217A9911997-12-23023 December 1997
Summary of 447th ACRS Meeting on 971203-06 Re Proposed Revs to 10CFR50.59 & Credit for Containment Overpressure to Provide Assurance of Sufficient Net Positive Suction Head for ECC & Containment Heat Removal
ML20217A8651997-12-15015 December 1997
Summary of ACRS Reliability & PRA Subcommittee 971112-13 Meeting in Rockville,Md Re Proposed Final SRP for risk- informed,performance-based Regulation
ML20217A9831997-12-0303 December 1997
Summary of 971203 ACRS Meeting in Rockville,Md Re Conduct of ACRS Business
ML20217A8811997-12-0202 December 1997
Summary of ACRS Safety Research Program Subcommittee 971104- 05 Meeting in Rockville,Md Re NRC Safety Research Program & Draft Annual Rept to Congress
ML20217A5901997-12-0202 December 1997
Summary of 445th ACRS Meeting in Rockville,Md on 971002-03 Re Appropriate Action on Items Listed in Attached Agenda.W/ Fr Notice,Meeting Schedule & Outline,List of Attendees, Future Agenda & List of Documents Provided to Committee
ML20217A8221997-12-0101 December 1997
Informs That During 446th Meeting on 971106-07,ACRS Discussed Several Matters & Completed Listed Ltr. Committee Authorized Larkins,Executive Director,To Transmit Memoranda,Listed
ML20217A8901997-11-21021 November 1997
Summary of ACRS Reliability & PRA 971021-22 Meeting in Rockville,Md Re Matter Included in Staff Requirements Memo,
ML20217A6381997-11-0606 November 1997
Summary of 444th ACRS Meeting in Rockville,Md on 970903-05 Re Appropriate Action Items Listed in Attached Agenda.W/Fr Notice,Meeting Schedule & Outline,List of Attendees & List of Documents Provided to Committee
ML20217B1921997-11-0606 November 1997
Summary of ACRS Planning & Procedures Subcommitte 971105 Meeting in Rockville,Md Re Conduct of ACRS Business
ML20217A8001997-10-21021 October 1997
Informs That During 445th Meeting on 971002-03,ACRS Discussed Several Matters & Completed Listed Rept & Ltrs. Committee Authorized Larkins,Executive Director,To Transmit Memoranda Listed
ML20217A8141997-10-20020 October 1997
Summary of ACRS Subcommittees on Pra,Plant Operations & Fire Protection 970828-29 Meeting in Rockville,Md Re Review of Staff Requirements Memo
ML20217A7011997-10-20020 October 1997
Summary of 970826-27 ACRS Subcommittees on Matls & Metallurgy & on Severe Accidents Joint Meeting W/Nrc,Nei & Industry in Rockville,Md Re Review of Proposed Draft GL & Associated Draft Regulatory Guide Re SG Tube Integrity
1999-02-17
[Table view]Some use of "" in your query was not closed by a matching "".
Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20206S6461999-02-17017 February 1999
Summary of ACRS Reliability & Probabilistic Risk Assessment, Plant Operations & on Regulatory Policies & Practices Subcommittees 981119-20 Meeting in Rockville,Md Re Options Make 10CFR50 & 10CFR50.59 risk-informed
ML20206S4381999-01-25025 January 1999
Summary of 458th ACRS Meeting on 981203-05 in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S6611999-01-11011 January 1999
Summary of 981215-17 ACRS Thermal Hydraulic Phenomena Subcommittee Meeting in Rockville,Md Re T/H Code Activities/ NRC T/H Research Status
ML20206S6101998-12-23023 December 1998
Summary of ACRS Reliability & Probabilistic Risk Assessment Subcommittee 981029 Meeting in Rockville,Md Re Options to Make 10CFR50 risk-informed,NEI Whole Plant Study & Options for Developing risk-informed Approach,Revising 10CFR50.59
ML20206S8501998-11-13013 November 1998
Summary of 456th ACRS Meeting on 980930-1002 in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S2481998-11-12012 November 1998
Summary of 455th ACRS Meeting on 980902-04 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S7621998-11-12012 November 1998
Summary of 980924 ACRS Submommittee on Reliability & PRA Open Meeting in Rockville,Md Re Proposed Options for Developing risk-informed Approach to Revising 10CFR50.59, Options for Broader Changes to 10CFR50
ML20206S4161998-09-29029 September 1998
Summary of 980826 Open ACRS Subcommittee on Reliability & PRA Meeting in Rockville,Md Re Issues in SRM on situation-specific Cases Where PRA Results & Insights Have Improved Existing Regulatory Sys
ML20206S3851998-09-0303 September 1998
Summary of 980729 Open ACRS Joint Meeting of Subcommittees on Plant Operations & Fire Protection in Atlanta,Ga Re Region II Activities & Other Items of Mutual Interest, Including Significant Operating Events & Fire Protection
ML20206S6831998-09-0101 September 1998
Summary of 453rd ACRS Meeting on 980603-05 in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S3761998-08-24024 August 1998
Summary of 980716 ACRS Plant License Renewal Subcommittee Meeting in Rockville,Md Re Presentations by & Holding Discussions with NRC Staff Re License Renewal,Proposed Staff Plans & Schedule for Reviewing License Renewal Applications
ML20206S3811998-08-0404 August 1998
Summary of ACRS Safety Research Program Subcommittee Meeting on 980717 in Rockville,Md Re Comments & Recommendations in 980616 ACRS Rept, Core Research Capabilities & Associated Staff Response
ML20206S3721998-07-29029 July 1998
Summary of 980707 ACRS Advanced Reactor Designs Subcommittee Meeting in Rockville,Md Re Info on AP600 Test & Analysis Program & Responses to ACRS Questions Asked During Previous Meetings
ML20206S6721998-07-0808 July 1998
Summary of ACRS Safety Research Program Subcommittee 980601 Meeting in Rockville,Md Re Discussion with NRC Concerning SECY-98-076, Core Research Capabilities
ML20206S3671998-06-30030 June 1998
Summary of 980619 Open ACRS Meeting of Subcommittee on Plant Operations in Rockville,Md Re Proposed Changes to 10CFR50.59,status of Resolution of Issues Identified in 980324 SRM Related to SECY-97-205 & Related Matters
ML20206S3501998-06-26026 June 1998
Summary of 980617-18 ACRS Advanced Reactor Designs Subcommittee Meeting in Rockville,Md Re Review of Advance FSER Chapters 4,5,7,8,11,13 & 18,level 1 AP600 Pra,Itaac & Associated ACRS Open Questions
ML20206S5991998-06-23023 June 1998
Summary of ACRS Reactor Fuels,Onsite Fuel Storage & Decommissioning Subcommittee 980423-24 Meeting in Rockville, MD Re Basis of Proposed NRC Fuel Failure Criterion for High Burnup Conditions & Adequacy of NRC Fuel Codes
ML20206S6411998-06-22022 June 1998
Summary of 980601 ACRS Matls & Metallurgy Subcommittee Meeting in Rockville,Md Re NRC Staff Concerns Related to ASME Boiler & Pressure Vessel Code,Section III Rule Revs
ML20206S3361998-06-22022 June 1998
Summary of 980611-12 Open ACRS Thermal Hydraulic & Severe Accident Phenomena Subcommittee Meeting in Rockville,Md Re Continuance of Review of Results of W Test & Analysis Program in Support of AP600 Design Certification
ML20206S6301998-06-17017 June 1998
Summary of 980602 ACRS Thermal Hydraulic & Severe Accident Phenomena Subcommitteemeeting in Rockville,Md Re GE Extended Power Uprate Program for Operating BWRs & NSP lead-plant Application for Power Uprate
ML20206S2561998-06-17017 June 1998
Summary of 452nd ACRS Meeting on 980430-0502 in Rockville, MD Re Items Listed in Attached Agenda
ML20206S5761998-06-0404 June 1998
Summary of ACRS Reliability & Probabilistic Risk Assessment Subcommittee 980416 Meeting in Rockville,Md Re Subcommittees Review of Matters Related to Elevation of CDF & Possible Rev to Commissions Safety Goal Policy Statement
ML20206S5671998-05-30030 May 1998
Summary of ACRS Advanced Reactor Designs Subcommittee 980513-15 Meeting in Rockville,Md Re Review of AP600 Standard SAR & Associated Advanced FSER Chapters 3,6,14,16 & 17
ML20206S2521998-05-14014 May 1998
Summary of 451st ACRS Meeting on 980402-04 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S2801998-04-30030 April 1998
Summary of 980219-20 ACRS Open Meeting of Subcommittee on Reliability & Probabilistic Risk Assessment in Rockville,Md Re Continuance of Review of Proposed Final SRP Sections & RGs for risk-informed,performance-based Regulation
ML20206S2871998-04-15015 April 1998
Summary of 449th ACRS Meeting on 980302-04 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S2951998-04-15015 April 1998
Summary of 450th ACRS Meeting on 980305-07 in Rockville,Md Re Items Listed in Attached Agenda
ML20206S6481998-03-26026 March 1998
Summary of ACRS Fire Protection Subcommittee 980122 Meeting in Rockville,Md Re Staff Actions Taken Related to Development of Revised Fire Protection Rule
ML20196L0531998-03-20020 March 1998
Summary of 980205-07 ACRS 448th Meeting in Rockville,Md Re Items Listed in Attached Agenda
ML20206S6561998-03-13013 March 1998
Summary of ACRS Plant License Renewal Subcommittee 980123 Meeting in Rockville,Md Re License Renewal Implementation Issues & Proposed Industry Guidelines
ML20206S2751998-03-0909 March 1998
Summary of 980218 ACRS Thermal Hydraulic & Severe Accident Phenomena Subcommittee Open Meeting in Rockville,Md Re Review of RES Program in Area of thermal-hydraulic Phenomena in Support of ACRS Planned Rept to Commission
ML20206S6791998-03-0505 March 1998
Summary of ACRS Plant Operations Subcommittee 980203 Meeting in Rockville,Md Re Subcommittee Review of Proposed Improvements to Senior Mgt Meeting Process
ML20217A8561998-03-0505 March 1998
Summary of ACRS 448th Meeting on 980205-07 Re Several Matters & Completed Listed Rept & Ltr.Committee Authorized Larkins,Executive Director,To Transmit Memoranda Listed
ML20206S2651998-02-23023 February 1998
Summary of 980203-04 ACRS Subcommittee on Advanced Reactor Designs Open Meeting in Rockville,Md Re Review of Chapters 1,4,5,7,8,11,13 & 18 of AP600 Ssar & AP600 Test & Analysis Program
IR 07100203/20064471998-02-0505 February 1998
Summary of 971203-06 447th ACRS Meeting in Rockville,Md Re Appropriate Action on Items Listed in Attached Agenda
ML20206S3931998-01-28028 January 1998
Summary of 980121 ACRS Subcommitee on Human Factors Meeting in Rockville,Md Re Human Performance & Reliability Plan & Integration of Human Factors Insights Into Insp Process
ML20217A8461998-01-0909 January 1998
Summary of ACRS Plant Operations Subcommittee 971202 Meeting in Rockville,Md Re SER on industry-sponsored Utility Resolution Guidance for Issue of Blockage of Suction Strainer in ECCS
ML20217A9911997-12-23023 December 1997
Summary of 447th ACRS Meeting on 971203-06 Re Proposed Revs to 10CFR50.59 & Credit for Containment Overpressure to Provide Assurance of Sufficient Net Positive Suction Head for ECC & Containment Heat Removal
ML20217A8771997-12-23023 December 1997
Summary of ACRS 446th Meeting on 971106-07 in Rockville,Md Re Appropriate Action on Items Listed on Attached Agenda.W/ Fr Notice,Meeting Schedule & Outline,List of Attendees, Future Agenda & List of Documents Provided to Committee
ML20217A8651997-12-15015 December 1997
Summary of ACRS Reliability & PRA Subcommittee 971112-13 Meeting in Rockville,Md Re Proposed Final SRP for risk- informed,performance-based Regulation
ML20217A9831997-12-0303 December 1997
Summary of 971203 ACRS Meeting in Rockville,Md Re Conduct of ACRS Business
ML20217A5901997-12-0202 December 1997
Summary of 445th ACRS Meeting in Rockville,Md on 971002-03 Re Appropriate Action on Items Listed in Attached Agenda.W/ Fr Notice,Meeting Schedule & Outline,List of Attendees, Future Agenda & List of Documents Provided to Committee
ML20217A8811997-12-0202 December 1997
Summary of ACRS Safety Research Program Subcommittee 971104- 05 Meeting in Rockville,Md Re NRC Safety Research Program & Draft Annual Rept to Congress
ML20217A8221997-12-0101 December 1997
Informs That During 446th Meeting on 971106-07,ACRS Discussed Several Matters & Completed Listed Ltr. Committee Authorized Larkins,Executive Director,To Transmit Memoranda,Listed
ML20217A8901997-11-21021 November 1997
Summary of ACRS Reliability & PRA 971021-22 Meeting in Rockville,Md Re Matter Included in Staff Requirements Memo,
ML20217A6381997-11-0606 November 1997
Summary of 444th ACRS Meeting in Rockville,Md on 970903-05 Re Appropriate Action Items Listed in Attached Agenda.W/Fr Notice,Meeting Schedule & Outline,List of Attendees & List of Documents Provided to Committee
ML20217B1921997-11-0606 November 1997
Summary of ACRS Planning & Procedures Subcommitte 971105 Meeting in Rockville,Md Re Conduct of ACRS Business
ML20217A8001997-10-21021 October 1997
Informs That During 445th Meeting on 971002-03,ACRS Discussed Several Matters & Completed Listed Rept & Ltrs. Committee Authorized Larkins,Executive Director,To Transmit Memoranda Listed
ML20217A7011997-10-20020 October 1997
Summary of 970826-27 ACRS Subcommittees on Matls & Metallurgy & on Severe Accidents Joint Meeting W/Nrc,Nei & Industry in Rockville,Md Re Review of Proposed Draft GL & Associated Draft Regulatory Guide Re SG Tube Integrity
ML20217A8141997-10-20020 October 1997
Summary of ACRS Subcommittees on Pra,Plant Operations & Fire Protection 970828-29 Meeting in Rockville,Md Re Review of Staff Requirements Memo
1999-02-17
[Table view]Some use of "" in your query was not closed by a matching "". |
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CERTIFIED COPY Q g j gg DATE ISSUED:Jan. 9,1986 MINUTES OF THE COMBINED MEETING OF THE "
s ACRS SUBCOMMITTEES ON REACTOR RADIOLOGICAL EFFECTS AND FIRE PROTECTION, OCTOBER 18, 1985 WASHINGTON, D. C.
Time and Place:
The ACRS Subcommittees on Reactor Radiological Effects and Fire Pro-tection held a joint meeting on October 18,1985 a t 1717 H Street, N.W. ,
Washington, D. C. The meeting began at 8:30 a.m. and was adjourned at
, approximately 4:15 p.m.
Purpose:
The purpose of this meeting was to review the increased radiation exposure rates and the potential fire hazards in the nuclear plant turbine building, plant environs, and offsite due to the use of hydrogen for Intergranular Stress Corrosion Cracking (IGSCC) suppression and the h use of oxygen in the off-gas system.
O t
h Commencing at 8:30 a.m., the Subcommittees heard and discussed presen-h c) o tations by the Electric Power Research Institute (EPRI), the NRC Staff
$$ifj and various industrial organizations, essentially all speaking on behalf m a.cu of the BWR Owners Group (BWROG) for IGSCC Research, in accordance with the tentative agenda (Attachment 1). A list of documents distributed during the meeting is enclosed as Attachment 2..
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Minutes / Combined RRE & FP 2 Meetings, Oct. 18-19, 1985
,, Attendees: (Total 48)
ACRS Members NRC Staff D. Moeller, Chairman, RRE Subcommittee V. Benaroya, CMEB C. Michelson, Chairman, FP Subcommittee F. Witt, CMEB M. Carb.on, Member 0. Lynch, Jr., RAB e-J. Ebersole, Member M. Lamastia, PAB G. Reed, Member K. Kampe. SAB C. Ferrell, SAB ACRS Staff B. Dalrymple, DSI L. Connor DSA H. Alderman
- 0. Merrill EPRI J. McKinley Dones C. Wood ACRS Consultants W. Bilanin NONE Others 29 persons Many of the attendees included in the "Other" category were also partic-ipants -- See Agenda (Attachment 1), Attendees List (Attachment 3) and the following summary and highlights of presentations for their names and affiliations.
Summary and Highlights of Presentations:
I. Introductory Remarks - D. Moeller Dr. Moeller introduced the meeting by indicating that more than 400 cases of IGSCC have been reported at BWRs during the past decade and it is therefore a significant problem. He went on to explain that a number of plant operators are considering the addition of hydrogen to the cooling water. This will reduce the concentration of oxygen in the coolant and should, hopefully, thereby, reduce the corrosive effects of oxygen, resulting in a lowering of IGSCC. However, two adverse con-ditions are created by the hydrogen addition, (1) an increase in radio-active nitrogen-16 in the steam lines and turbines, which gives rise to
Minutes / Combined RRE & FP 3 Meetings, Oct. 18-19, 1985 increased radiation exposure rates in the turbine building, plant and its environs, and (2) an increase in potential fire' hazards'due to the necessary handling of large quantities of hydrogen. Thus, these are the e
twomainareasbeingaddressedatthismeeting.
II. Hydrogen Water Chemistry (HWC) for BWRs - Introduction and Back-ground -- R. L. Jones, EPRI '
Mr. Jones said that cracking of austenitic stainless steel piping is a serious reliability and availability problem in BWRs, having resulted in about 2000 cracks since 1974 and more than 10% BWR availability loss in the past year. .
He also said that the BWR Owners Group (BWROG) for IGSCC Research, formed in 1979, has accelerated existing EPRI R&D programs for the development of remedies to this problem. The possibility of the bene-fits of Hydrogen Water Chemistry (HWC) has been discussed for some years. It was shown to be feasible in laboratory experiments in the early 1980's and is currently undergoing long-term in-plant verification tests which will continue for another two years.
To date, these in-plant tests have confirmed suppression of IGSCC and also have produced extensive laboratory data indicating that HWC reduces corrosion cracking in carbon steels, low alloy steels, and nickel-base alloys as well as stainless steel.
Minates/ Combined RRE & FP 4 Meetings, Oct. 18-19, 1985 III. Radiological Effects of Hydrogen Water Chemistry -- C. J. Wood, EPRI c.
The essence of Dr. Wood's remarks regarding the effects of HWC on Radiation Doses is that it will result in:
- 1. A reduction in maintenance and inspection requirements, 2.
An increase in shutdown radiation fields (and hence exposure s., rates) of 20-30% in recirculation piping radiation fields from cobalt-60, but no impact on normal operation, and 3.
An increase in operating radiation fields (and hence exposure rates) of 200 to 500% in steam lines and turbines from nitro-gen-16, but no impact on shutdown.
IV. Steamline Radiation Fielde, -- R. Law /M. Siegler, General Electric Co.
Mr. Law made the presentation. He discussed the chemical basis for HWC and the results of the Dresden 2 testing program. His principal con-clusions were that the increase in main steam line activity is a chemi-cal consequence of HWC, and that the pre-implementation testing provides engineering data for final system design.
V. Shutdown Radiation Fields -- R. Law /M. Siegler, General Electric Co.
Mr. Law discussed the monitoring program at Dresden 2, the results of which are:
Minutes / Combined RRE & FP 5 Veetings, Oct. 18-19, 1985
,, (1) Recirc pipe Co-60 increased 14%
(2) Recirc pipe DPGSM exposure rates increased 26%, and (3) RWCU exposure rates showed no significant change s
He explained their interpretation of the preceding as follows:
(1) The largest changes (increases) occurred from' corrosion deposits within the piping.
(2) HWC is believed to have caused a change in existing oxide concentrations followed by particulate release (3) The rate of increase in radiation buildup seemed to be de-creasing and it appears that it will stabilize over the next cycle. However, answers will not be known because (or pos-sibly until) the system is decontaminated.
VI. Radiological impacts of HWC - Increased N-16 Activity and Some Techniques for Mitigation -- D. James, Advanced Process Technology Mr. James discussed various turbine building configurations and HWC
. contributions to environs exposure rates for conditions of plant shut-down, normal operating conditions, and with hydrogen water chemistry.
The specific subject areas covered in his presentation included:
(1) Areas of Potential Radiological Impact (2) Radiological Impact Determination Techniques (3) Radiological Impact Variation Among U. S. BWRs
~
Minutes / Combined RRE & FP 6 Meetings, Oct. 18-19, 1985 (4) Types of Mitigating Actions His conclusions are that:
s
', r, (1) HWC will increase the exposure rates slightly in and around BWRs (2) The impact can be reliably assessed throughout' implementation (3) The impact can be mitigated, if required (4) The radiological impact of HWC is manageable and, overall, the net result of its implementation appears definitely to be ALARA.
I VII. NRC Staff Discussion on Radiological Exposures Resulting from Hydrogen Addition (HWC) in BWRs -- V. Benaroya and O. Lynch, Jr.
The highlights of the Staff's discussion were that, with HWC:
(1) Occupational radiation exposure rates are increased (2) The effect on public health and safety is minimal (3) Tnere is only a negligible increase in effluent release of radioactive material (4) Hydrogen addition is not without problems VIII.BWR Owners Group (BWROG) Activities Regarding Permanent BWR HWC Installations -- W. Bilanin, EPRI f
_ . . - _ . , . - , _ , . _ . . - - - - - = - - . , . _ . . . . - - - -
' Minutes / Combined RRE & FP 7 Meetings, Oct. 18-19, 1985 Mr. Bilanin discussed the background, objective and approach being taken in this effort. He stated that since early studies indicated that significant quantities of hydrogen could be required, the BWROG recog-t nized the need to evalsate the effects of hydrogen storage and to develop generic guidelines for utility use to streamline the implementa-tion process.
By following this course, they hope to,also provide NRC with standards for use in review, which would allow utility implementa-tion without prior NRC case-by-case evaluations. He identified the four areas of activity being investigated by BWROG: (1)Thedevelopmentof guidelines for HWC use, and (2) a review of specific problems and considerations necessary for (a) the hydrogen supply system. (b) the hydrogen distribution system, and (c) the offgas system. Each of these areas was uiscussed by different investigators in subsequent presen-tations.
Villa. Overview of Guidelines for Permanent BWR HWC Installations --
D. Helwig, Philadelphia Electric Co.
Mr. Helwig gave an overview of the status and identified the contents of the guidelines. The BWROG submitted a draft report to the NRC Staff on 10/9/85 following an initial presentation to them in June, 1985. A remaining section of the guidelines and back-up information is due to be issued ' early November,1985. They are currently working with the NRC Staff on the resolution of coments on the guidelines.
VIIIb. Prevention of Leakage and Potential Ignition or Detonation for the Hydrogen Dist ibution System -- L. Doelp Air Products and
' Minutes / Combined RRE & FP 8 Meetings, Oct. 18-19, 1985
.,, Chemicals, Inc.
Mr. Doelp reviewed the history of the industrial use of liquid hydrogen ,
and discussed its potential hazards. He identified various natural and human-induced events that could lead to accidents and discussed design considerations which would mitigate the occurrence and effects of such mishaps.
VIIIc.
Proper Design for Hydrogen Leak Detection G. Seeley, Stearns Catalytic Corp.
Mr. Seeley described their company's approach to the detection and control of hydrogen leaks and discussed the essential elements of 1
hydrogen safety, including the three axioms of hydrogen safety --
ventilation, leak prevention and elimination of ignition sources. After discussing the various good engineering practices for hydrogen safety, he drew the following conclusions:
(1) Much information on good design guidance is available in the litera ture, (2) System design must adhere to such guidance, and (3) Generic guidance will provide assurance that systems will be designed and operated safely.
VIIId. BWR Offgas System Firc Hazards -- L. Nesbitt, General Electric Co.
l l
i
- - - - - - - ~ ~
' Minutes / Combined RRE & FP 9 Meetings, Oct. 18-19, 1985 s
Mr. Nesbitt described a typical BWR offgas system and the potential causes of fires. He stated that the potential causes of fires are essentially unchanged by the HWC, and summarized his remarks as follows:
N (1) HWC will have small, if any, effect on the number or results of BWR offgas fires.
(2) There will be a slight decrease in fires upstream of the recombiner due to offgas stoichiometry (3) There will be a slight increase in downstream fires, due to failure of oxygen control (4) The damage probability is zero IX, Meeting with BWROG for IGSCC Research, October 9,1985 -- Memoran-dum from F. Witt to V. Benaroya dated October 11, 1985 This document was distributed and discussed during the NRC Staff's presentation (VI) and by Mr. W. Bilanin (VII) and D. Helwig (VIIA) above. It is included here for completeness, although it was not discussed explicitly in the meeting. It was also not included with the transcript.
NOTE: A complete transcript of the meeting is on file at the NRC Public Document Room at 1717 H St., NW., Washington, D. C. or can be obtained at cost from ACE Federal Reporter Inc.
N. Capitol St., Washington, D. C. 2001 Telephone (202), 444 347-3700.
p ._
1 ATTACHMENT 1 REVISED 10/02/85 TENTATIVE AGENDA FOR ACRS MEETING HYDROGEN ADDITION AT BWRs COMBINED RADIOLOGICAL EFFECTS AND FIRE PROTECTION SUBCOMMITTEES OCTOBER 18, 1985 Morning Session-Reactor Radiological Effects 8:30 a.m. 1. Introductory Statement-Chairman, Reactor Radiological Effects Subcomittee 8:40 a.m. 2. BWR Owners Group for IGSCC Research R. Jones /C. Wood Overview on Materials and Radiological (EPRI)
Effects of Hydrogen Water Chemistry 9:00 a.m. 3. Effects of Hydrogen Addition on piping R. Law /
shutdown radiation fields from Cobalt-60 M.Siegler(GE) 9:30 a.~m. ****** BREAK ******
9:40 a.m. 4 Plant measurements of increases in main R. Law /
steam line radiation levels from Nitrogen- M. Siegler '
16 (GE) 10:10 a.m. 5. Impact of hydrogen water chemistry on N-16 L.Anstine/
doses in plant and environs and means of D. James reducing personnel exposure (APT) 10:40 a.m. 6. Summary R. Jones (EPRI) 10:50 a.m. 7. NRC Staff Discussion on Radiological Exposure 11:30 a.m. 8. Subcomittee Discussion 12:00 NOON ****** LUNCH ******
Afternoon Session - Fire Protection 1:00 p.m. 9. Introductory Statement - Chairman, ACRS Subcomittee on Fire Protection 1:10 p.m. 10. BWR Owners Group for IGSCC Research W.Bilanin/
Subcomittee - Guidelines for Permanent D.Helwig BWR Hydrogen Water Chemistry (EPRI/PECo)
Installations 1:50 p.m. 11. Prevention of leakage and potential T. Seeley ignition or detonation for the * (Stearns hydrogen distribution system Catalytic)
OCTOBER 18, 1985 AGENDA .
,, 2:05 p.m.
- 12. Prevention of leakage and potential L.Doelp ignition or detonation for the
,. hydrogen production system (Air Products) 2:35 p.m. ******
BREAK ******
2:45 p.m. '
- 13. Fire Hazards regarding the offgas system L. Nesbitt (GE) 3:00 p.m.
- 14. NRC Staff Discussion of Fire Protection 4:00 p.m.
- 15. Subcommittee Discussion 4:30 p.m. ******
ADJOURN ******
ATTACHMENT 2 PRESENTATION MATERIAL DISTRIBUTED DURING s
'THE COMBINED MEETING OF THE ACRS SUBCOMITTEES ON REACT RADIOLOGICAL EFFECTS AND FIRE PROTECTION OCTOBER 18, 1985 WASHINGTON, D. C.
- 1. Hydrogen Water Chemistry (HWC) for BWRs ~- Introduction and Back-ground, R. Jones, EPRI.
- 2. Radiological Effects of Hydrogen Water Chemistry, C. Wood, EPRI
- 3. Steamline Radiation Fields, R. Law and M. Siegler, General Electric Co.
- 4. Shutdown Radiation Fields, R. Law and M. Siegler, General Electric Co. (including Results of Dresden 2 Testing Program).
S. Radiological Impacts of HWC Increased N-16 Activity and Some
- 6. Techniques for Mitigation, D. James, Advanced Process Technology.
NRC Staff Discussion on Radiological Exposure Resulting from Hydrogen Addition (HWC) in BWRs, O. Lynch, NRR
- 7. BWR Owners Group Activities Regarding Permanent BWR Hydrogen Water Chemistry Installations W. Bilanin, EPRI.
- 8. Draft, Revision C -- Guidelines for Pennanent BWR Hydrogen Water Chemistry Installations, BWR Owners Group.
- 9. Overview of Guidelines for Permanent BWR Hydrogen Water Chemistry Installations, D. Helwig, Philadelphia Electric Co.
- 10. Prevention of Leakage and Potential Ignition or Detonation for the Hydrogen Inc.,
Distribution System, L. Doelp. Air Products and Chemicals.
- 11. Proper Design for Hydrogen Leak Detection, G. Seeley, Stearns Catalytic Corp.
- 12. BWR Offgas System Fire Hazards, L. Nesbitt, General Electric Co.
13.
(Handout) Memorandum from F. Witt to V. Benaroya,
Subject:
Meeting with BWR Owners's Group for IGSCC Research, Oct. 11, 1985
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DATE October 18. 1985
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' ACRS SUBCOMMITTEE MEETING ON COMBINED RADIOLOGIC _AL_ EFFECTS AND FIRE PR_0JECTION LOCATIO.'t: ROOM 1046,1717 H St. NW., Washington, D. C.
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