ML20151F766
| ML20151F766 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Catawba, McGuire, 05000000 |
| Issue date: | 03/29/1988 |
| From: | Taylor J BABCOCK & WILCOX CO. |
| To: | Norberg J Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19302D444 | List: |
| References | |
| JHT-88-65, NUDOCS 8804180447 | |
| Download: ML20151F766 (2) | |
Text
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Babcock & Wilcox Noci r
o w.n a McDermott company 3315 Old Forest Road P.O. Box 10935 Lynchburg, VA 24506 0935 (804) 385 2000 1
March 29, 1988 JHT/88-65 Mr. James A. Norberg, Special Assistant Division of Engineering and System Technology Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
ECCS Methodology for Licensing Catawba and McGuire Reloads Referenco: J. H. Taylor to J. A. Norberg, same subject, JHT/87-268, December 14, 1987.
Dear Mr. Norberg:
The reference given above transmitted the Babcock & Wilcox proprietary Topical Report BAW-10171P, "REFLOD3B."
Babcock &
Wilcox has found it necessary to update this report.
Enclosed are twenty (20) copies of the report update pages.
The modification to Appendix F
removes the Henry quench temperature criteria and a potential conflict in the quench l
logic for core slab one.
The original logic would allow a non-physical discontinuous change in the heat transfer coefficient of core slab one if the Zq* criteria was satisfied before the quench temperature criteria was satisfied.
The change to the Transition Period core outlet flow is to achieve compatibility with Babcock & Wilcox's stated goal (BAW-10171P, 12/87, page 2-42) of allowing sufficient liquid entrainment to maintain volume 1R two-phase, t
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t I so OGO4180447 880329 PnR TOPRP EMVBW fp DcD l
The report update is considered proprietary as sworn by me as Manager, Babcock & Wilcox Licensing, in my affidavit presented with our April 15, 1987 (J.
H.
Taylor to Carl Berlinger, JHT/87-085) submittal of the draft topical report and should be treated as such.
Ve ru y yours, J. H. Tay or Manager, Licensing Services cc: w/o attachments R.
B.
Borsum T.
L. Baldwin A.
C.
Thadani, NRC M.
W. Hodges, NRC I
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