ML18142A159
| ML18142A159 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna, 05000000 |
| Issue date: | 12/31/1984 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| 683A, NUDOCS 8501070373 | |
| Download: ML18142A159 (3) | |
Text
I e
e VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 W. L. STEWART VXCE PRESIDENT NUCLEAR OPERATIONS December 31, 1984 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. Darrell G. Eisenhut, Director Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:
Serial No. 683A E&C/RCA:brg:2006N Docket Nos. 50-280 50-281 50-338 50-339 License Nos. DPR-32 DPR-37 NPF-4 NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY RELAXED POWER DISTRIBUTION CONTROL (RPDC)
AND STATISTICAL DNBR METHODOLOGY Vepco has developed a methodology for controlling axial power skewing in reactor cores. This methodology, known as 11Relaxed Power Distribution Control,
11 is described in topical report VEP-NE-1 which was submitted in our December 10, 1984 letter from Mr. W. L. Stewart to Mr. H. R. Denton (Serial No.
683).
We intend to apply the methodology of RPDC to the North Anna and Surry plants in mid-1985.
This letter proposes a meeting between Vepco and the NRG to answer NRG questions concerning the RPDC methodology.
In an independent effort, Vepco is also developing a statistical DNBR analysis capability.
As a supplement to the meeting proposed above, we would like to obtain the NRG perspective on the licensing of statistical methods.
Vepco proposes that the meeting to discuss these items be held at your Bethesda offices at 10:00 A.M. on January 22, 1985.
Should you have any questions, please contact us at your earliest convenience.
A meeting agend~ is attached.
Attachment cc:
Mr. James P. O'Reilly Regional Administrator Region II 8501070373 841231 PDR AD0CK 05000280 p
PDR f~if J
L. Stewart r Mr. Leon B. Engle NRG Project Manager - North Anna Operating Reactors Branch No. 3 Division of Licensing
~
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VIRGINIA. ELECTRIC AND POWER COMPANY TO Mr. Harold R. Denton cc:
(Continued)
Mr. James R. Miller, Chief Operating Reactors Branch No. 3 Division of Licensing Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Mr. M. W. Branch NRC Resident Inspector North Anna Power Station Mr. D. J. Burke NRC Resident Inspector Surry Power Station Mr. J. D. Neighbors NRC Project Manager - Surry Operating Reactors Branch No. 1 Division of Licensing
AGENDA FOR VEPCO/NRC MEETING
- 1.
RPDC Methodology
- a.
Development
- b.
Details of Methodology
- c.
Schedule of Review and Implementation
- 2.
Statistical DNBR Analysis '
- a.
Review of Vendor Methods
- b.
Proposed Vepco Methodology
- c.
NRC Recommendations