ML20054F128

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Forwards Westinghouse Verification of Natural Circulation in Crbr Plant - Update, Incorporating Fftf Test Data.Rept Should Increase NRC Confidence in Natural Circulation as Viable Mode of Decay Heat Removal
ML20054F128
Person / Time
Site: Clinch River
Issue date: 06/10/1982
From: Longenecker J
ENERGY, DEPT. OF
To: Check P
Office of Nuclear Reactor Regulation
Shared Package
ML20054F129 List:
References
HQ:S:82:042, HQ:S:82:42, NUDOCS 8206150240
Download: ML20054F128 (1)


Text

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Department of Energy Washington, D.C. 20545 Docket No. 50-537 HQ:S:82:042 JUN 101982 Mr. Paul S. Check, Director CRBR Program Office Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Check:

TRANSMITTAL OF " VERIFICATION OF NATURAL CIRCULATION IN THE CLINCH RIVER BREEDU REACTOR PLANT--AN UPDATE"

Reference:

Letter S:L:1195, A. R. Buhl to R. S. Boyd', " Natural Circulation Decay Heat Removal Verification Plan," dated June 21, 1976 In the reference letter, the Project provided the Natural Circulation Verification Plan to NRC.

The enclosed version of the Natural Circulation Verification Plan provides a report of the progress accomplished, and an update on the work required to complete the verification of the decay heat removal capability. This revision takes advantage of test data (FFTF) which in 1976 was not expected to be available prior to obtaining a construction permit for CRBRP. The update also presents the results of other tests and sensitivity studies that have been completed. The information presented in this updated report and its reference is expected to provide the basis for substantially increasing NRC confidence that natural circulation is a viable mode of decay heat removal.

Sincerely, Jlhn R. Longen er Acting Director, Office of the Clinch River Breeder Reactor l

Plant Project Office of Nuclear Energy Enclosure gl cc: Service List Standard Distribution Licensing Distribution 8206150240 820610 PDR ADOCK 05000537 t O PDR