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MONTHYEARML0209302122002-03-28028 March 2002 Proposed Technical Specifications Changes & Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Request ML0213503742002-05-13013 May 2002 Request for Withholding Information from Public Disclosure by Letter Dated 03/28/2002 Project stage: Withholding Request Acceptance ML0220500122002-07-23023 July 2002 Ltr, Proposed Technical Specification Changes and Exemption Request Regarding Use of Framatome and Advanced Mark-BW Fuel Project stage: Other ML0222702432002-08-0202 August 2002 Small Break LOCA Evaluation in Support of Proposed Technical Specifications Changes & Exemption Request Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0224601642002-08-16016 August 2002 Large Break LOCA Analysis in Support of Proposed Technical Specifications Changes & Exemption Request to Use Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0233303622002-11-15015 November 2002 Revised Loca Analysis Schedule in Support of Proposed Technical Specifications Changes and Exemption Request to Use Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0302701122003-01-24024 January 2003 Fax, Request for Additional Information Framatome Fuel Transition Project stage: RAI ML0308003902003-03-21021 March 2003 Request for Additional Information on Small-break LOCA Evaluation in Support of Proposed Technical Specifications Changes and Exemption Request to Use Framatome Anp Advanced Mark-BW Fuel Project stage: RAI ML0309104342003-03-31031 March 2003 Facsimile Transmission of Questions for Proposed Technical Specifications Changes and Exemption Request, Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0313306512003-05-0606 May 2003 Request to Use Subsequent Edition and Addenda of ASME Section XI for Qualification of Examination Personnel Project stage: Request ML0314007262003-05-0909 May 2003 Request for Additional Information, Proposed Technical Specifications Changes and Exemption Request to Use Framatome Anp Advanced Mark-BW Fuel Project stage: Request ML0316008832003-05-27027 May 2003 Small Break Loss of Coolant Accident (SBLOCA) Analysis Results for the Proposed Technical Specifications Changes and Exemption Request for Use Ot Framatome Anp Advanced Mark-BW Fuel Project stage: Request ML0316106732003-06-10010 June 2003 Withholding from Public Disclosure, Document Response to Request for Additional Information and Revised Pages for March 2002 Evaluation Report - Framatome Fuel Transition Program Technical Specification Change Project stage: RAI ML0316403882003-06-12012 June 2003 N. Anna, Units 1 and 2 - Framatome Anp Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML0323200022003-08-19019 August 2003 Facsimile Transmission of Questions for Proposed Technical Specifications Changes, Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0323906432003-08-20020 August 2003 Request for Additional Information Regarding Realistic Large Break Loss of Coolant Accident Analysis Results for Proposed TS Changes & Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Request ML0323900872003-08-20020 August 2003 Fitness for Duty Program, Semi-Annual Performance Data Report Project stage: Request ML0326807202003-08-29029 August 2003 Submittal of Approved Topical Report VEP-FRD-42, Revision 2.0-A, Reload Nuclear Design Methodology for Application Project stage: Other ML0325411792003-09-0404 September 2003 Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark - Bw Fuel Small Break Loss of Coolant Accident (SBLOCA) Analysis Results Request for Additional Information Project stage: Request ML0325804552003-09-0505 September 2003 Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Supplemental Information for Realistic Large Break Loss of Coolant Accident (Rlbloca) Analysis Results Project stage: Supplement ML0327315722003-09-0808 September 2003 Facsimile Transmission of Questions on Proposed License Amendment to Use Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0325500032003-09-11011 September 2003 Facsimile Transmission of Questions on Proposed License Amendment to Use Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0327314452003-09-22022 September 2003 Supplemental Information for Realistic Large Break Loss of Coolant Accident (Rlbloca) Analysis Results Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Supplement ML0327904052003-09-26026 September 2003 Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel, Supplemental Information for Realistic Large Break Loss of Coolant Accident (Rlbloca) Analysis Results Project stage: Supplement ML0327903962003-09-26026 September 2003 Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel, Request for Additional Information Pertaining to the Icecon Modules in the Realistic Large Break LOCA (Rlbloca) Project stage: Request ML0328205902003-10-0606 October 2003 Meeting Summary - Usnrc/Vepco & Anp - to Discuss Framatome Fuel Transition Program at North Anna, Units 1 and 2 Project stage: Meeting ML0332404512003-11-10010 November 2003 Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Supplement Information for Realistic Large Break Loss of Coolant Accident (Rlbloca) Analysis Results Project stage: Supplement ML0335002392003-12-0808 December 2003 Proposed Technical Specifications Changes & Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Supplemental Information for Realistic Large Break Loss of Coolant Accident (Rlbloca) Containment Model Project stage: Supplement ML0401405092004-01-0606 January 2004 Stations, Units 1 and 2 - Engineering Evaluation Results and Closure of Commitment for Management of Environmentally Assisted Fatigue in Safety Injection Accumulator and Charging Nozzles Project stage: Request ML0401405102004-01-0606 January 2004 Supplemental Information for Realistic Large Break Loss of Coolant Accident (Rlbloca) Containment Pressure Analysis Proposed Technical Specifications Change & Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Supplement ML0401405642004-01-13013 January 2004 Facsimile Transmission of Question for Proposed Technical Specifications Changes, Use of Framatome Anp Advanced Mark-BW Fuel (Tacs MB4714 and MB4715) Project stage: Other ML0402908102004-01-22022 January 2004 Proposed Technical Specifications Changes & Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel, Response to Request for Additional Information Regarding Assessment of Fuel Assembly Bow Concern Project stage: Response to RAI ML0405505522004-02-12012 February 2004 Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel, Supplemental Information for Loss of Coolant Accident Mixed Core Effects Project stage: Supplement ML0406909252004-03-0101 March 2004 Supplemental Information for SBLOCA Slot Breaks, Per Proposed Technical Specifications Changes and Exemption Request for Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Supplement ML0409703402004-04-0101 April 2004 Tech Spec Pages for Amendment No. 216 Use of Framatome Anp Advanced Mark-BW Fuel Project stage: Other ML0409600402004-04-0101 April 2004 Issuance of License Amendment Use of Framatome Fuel, TAC MB4715 Project stage: Approval ML0419502182004-07-0101 July 2004 Day Report of Emergency Core Cooling System (ECCS) Evaluation Model Changes Pursuant to the Requirements of 10 CFR 50.46 Project stage: Request ML0423305602004-08-20020 August 2004 Technical Specification Amendment No. 237, Pages 2.0-1, 4.0-1, 5.6-3, 5.6-4, 5.6-5 Project stage: Other ML0423306592004-08-20020 August 2004 8/20/04, North Anna, Unit 1, Issuance of Amendment Re. Conversion to Framatome Advanced Mark-BW Fuel Project stage: Approval 2003-06-12
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Text
September 8, 2003 To:
Virginia Electric and Power Company FROM:
Stephen Monarque, Project Manager /RA/
Project Directorate II, Section 1 Division of Licensing Project Management Office of Nuclear Reactor Regulation
SUBJECT:
NORTH ANNA POWER STATION, UNITS 1 AND 2 - FACSIMILE TRANSMISSION OF QUESTIONS ON PROPOSED LICENSE AMENDMENT TO USE FRAMATOME ANP ADVANCED MARK-BW FUEL (TACS MB4714, AND MB4715)
A facsimile of the attached questions on containment analysis was transmitted on September 8, 2003 to Mr. Tom Shaub of Virginia Electric and Power Company (VEPCO).
These questions were transmitted to VEPCO in order to support a conference call on these questions.
ADAMS ACCESSION NO. ML032731572
Enclosure:
Request for Additional Information
REQUEST FOR ADDITIONAL INFORMATION NORTH ANNA POWER STATIONS, UNITS 1 AND 2 PROPOSED LICENSE AMENDMENT TO USE FRAMATOME ANP FUEL
- 1. Reference 15 of Topical Report EMF-2103 Revision 0 is Supplement 1 to Revision 2 of ICECON. This has not been supplied to the NRC staff. What is its relevance to the review of the calculation of minimum containment pressure?
- 2. Please confirm that the version of ICECON, documented in XN-CC-39 dated August 1975 and approved by the NRC staff in a June 30, 1978 SER, is identical with the version documented in EMF-CC-39(P) (dated November 1999). If this is not the case, please describe any differences and explain their effect on the calculated minimum containment pressure.
- 3. The NRC SER approving ICECON (June 30, 1978) requires, as a condition for approval, that a user of ICECON will provide justification for the values of the area and heat capacities of the structural heat sinks used in the analysis of minimum containment pressure. Please provide justification for the values used. It is not necessary to provide the values themselves.
- 4. An important consideration in calculating containment pressure is the distribution of the break flow as it enters the containment atmosphere. Please describe the assumption used. CONTEMPT contains a temperature flash model. If temperature flash was used for minimum containment pressure calculations please explain why this is acceptable since temperature flash tends to overestimate pressure.
- 5. The calculation of peak cladding temperature conservatively assumes a worst single failure. However, it is not conservative to assume a single failure for the minimum containment pressure portion of the calculation. Please explain how the best estimate LOCA methods accommodate these considerations.
- 6. What is the basis for assuming the distribution of volumes from minimum to maximum is uniform? (Table 7.2-3 of the May 6, 2003 letter) Why is no standard deviation specified?