ML19343C489

Forwards Safety Consideration for 24 Element Graphite- Reflected Core. Proposed Core Configuration Does Not Present or Constitute Unreviewed Safety Questions or Involve Change in Tech Specs.Core Loading Diagrams Encl

ML19343C489
Person / Time
Site:	05000087
Issue date:	03/19/1981
From:	Nardi A WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	John Miller Office of Nuclear Reactor Regulation
Shared Package
ML19343C490	List: ML19343C489 ML19343C493
References
LA-81-35, NUDOCS 8103240375
Download: ML19343C489 (3)

Text

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/ LA-81-35 Westinghause Water Reactor see Sectric Corporation Divisions "=NNn3 C March 19 081 lW. ,' .

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Director of Nuclear Reactor Regulation """'g3*OYS U. S. Nuclear Regulatory Commission  !- #

Washington, D.C. 20555  % u$'$$sN s Attention: Mr. James R. Miller, Chief 0

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Standardization & Special Projects Branch g-j ;i-s

Subject:

Modified Core Configuration for the Westinghouse Nuclear Training Reactor, License R-119, Docket 50-87 Gentlemen:

The Westinghouse Electric Corporation hereby submits for your in-formation a document titled " Safety Considerations for the 24

, Element Graphite-Reflected Core". This document was prepared for review by the Westinghouse Nuclear Training Reactor Safeguard Committee in accordance with Section 4.0 of the Technical Specifi-cations. The Reactor Safeguard Committee reviewed the proposed core configuration, operational procedures, and the attached do -

cument. It is the judgement of the Reactor Safeguard Committee that the proposed core configuration does not present or constitute any unreviewed safety questions or involve a change in the technical specifications. Based on this decision by the Reactor Safeguard Committee and in accordance with the provisions of 10 CFR 50.59 (a) (1) (iii) , .the testing program for the 24 Element Graphite-Re-flected Core commenced during January 1981.

The Westinghouse Nuclear-Training Reactor as'it'is currently con-figured (Fig. 1) utilizes a quantity of SNM that exceeds the formula quantity. The modified. core configuration (Fig. 2) is being' con-sidered in an effort to reduce the SNM inventory to less than the formula' quantity. Basically the modified core configuration contains about 4800 grams of Uranium - 235 with graphite reflector assemblies utilized to eccnomize the neutron flux.

If you have anyl questions concerning this transmittal please. contact

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me by writing to the above address or call me on (412) 373-4652.

Yours truly, g -

(

'AJN/sgr A. J. Nardi, Manager

Enclosures:

NES License Administrator 8103240374

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