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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
[Table View] |
Text
January 13, 2004 To:
FROM:
SUBJECT:
Virginia Electric and Power Company Stephen Monarque, Project Manager
/RA/
Project Directorate II, Section 1 Division of Licensing Project Management Office of Nuclear Reactor Regulation NORTH ANNA POWER STATION, UNITS 1 AND 2 - FACSIMILE TRANSMISSION OF QUESTION FOR PROPOSED TECHNICAL SPECIFICATIONS CHANGES, USE OF FRAMATOME ANP ADVANCED MARK-BW FUEL (TACS MB4714, AND MB4715)
A facsimile of the attached question on Rod-to-Rod Radiation was transmitted on January 13, 2004 to Mr. Tom Shaub of Virginia Electric and Power Company (VEPCO). This question was transmitted in order to allow VEPCO to determine the response time needed to address this request for additional information.
JU4LOUD 101-6
NORTH ANNA POWER STATION, UNITS 1 AND 2 ROD-TO-ROD RADIATION QUESTION The NRC staff has developed an example of a thermal radiation problem that could be used to justify the use of the RELAP 5 radiation model presented in Topical Report 2103(P), Revision 0, "Realistic Large Break LOCA Methodology for Pressurized Water Reactors."
A. In this example, a 6x6 array of rods in the hot bundle are selected, with the following bounding conditions presented below.
- 1) The limiting rod is located in position # 16 roughly in the center of the array.
- 2) The limiting rod peak cladding temperature (PCT) is 2032 F.
- 3) All remaining rods in the array are at a temperature of 1975 F.
- 4) The fence is at a temperature of 1975 F.
- 5) No guide tubes were modeled in this array.
Using these bounding conditions in this example, the minimum equivalent heat transfer coefficient for rod no. 16 is calculated to be 2.6 Btu/hr-ft2-F. This value bounds the FLECHT test data equivalent heat transfer coefficients of 1.87, 2.22, and 1.90 Btu/hr-ft2-F for FLECHT Tests 31504, 13609, and 13914, respectively. The temperature value of 1975 F for all of the rods surrounding the hot rod bounds the power distribution in the vicinity of the PCT rod.
Specifically, a pin census would show that the difference in peaking factors between the hot rod and the rods surrounding the hot rod (nearest neighbors) is bounded by the 1975 F temperature assumed for the neighboring rods. If the hot rod temperature is 2032 F and the average hot bundle temperature is 1838 F, then the use of the actual peaking factors for the hot rod and the rods surrounding the hot rod would result in rod temperatures lower than 1975 F.
This demonstrates that rod temperatures, in the intermediate range between the highest temperature rod and the average hot bundle temperature, can be obtained by interpolating both the peaking factors and the associated temperatures from the highest temperature rod and the average hot bundle temperature along with their associated peaking factors.
Note, in the above example, the highest temperature rod is rod # 16 with a temperature of 2032 F and peaking factor of Fhr. The temperature of the average bundle rod is 1838 F with a peaking factor of Fave.
If the actual peaking factors for the rods surrounding the hot rods are used to generate their temperatures (something in the intermediate range between Fhr and Fave), this cause temperatures to be lower than the assumed neighboring temperatures of 1975 F. Thus, the chosen power distribution (or temperatures of neighboring rods) bounds the PDQ pin census distributions during the fuel cycle.
B. Regarding its proposed license amendment to implement Framatome Advanced Mark-BW Fuel at North Anna Power Station, Units 1 and 2, Virginia Electric and Power Company is requested to confirm that the separation in power between the highest temperature rod and the surrounding rods bounds the power distribution for potential peak temperature rod locations in the core (i.e all rods in the hot bundle within the physics uncertainty on peaking factor) during the entire fuel cycle.
