ML20140H446

Application for Amend to License DR-15,proposed Change 4 for SEFOR

ML20140H446
Person / Time
Site:	05000231
Issue date:	09/04/1970
From:	GENERAL ELECTRIC CO.
To:
Shared Package
ML20140G249	List: ML20140G245 ML20140G279 ML20140G284 ML20140G290 ML20140G295 ML20140G300 ML20140G306 ML20140G312 ML20140G317 ML20140G324 ML20140G329 ML20140G333 ML20140G339 ML20140G354 ML20140G360 ML20140G364 ML20140G370 ML20140G379 ML20140G384 ML20140G413 ML20140G437 ML20140G443 ML20140G452 ML20140G459 ML20140G464 ML20140G472 ML20140G477 ML20140G483 ML20140G494 ML20140G500 ML20140G511 ML20140G536 ML20140G566 ML20140G577 ML20140G582 ML20140G586 ML20140G597 ML20140G602 ML20140G604 ML20140G608 ML20140G616 ML20140G624 ML20140G629 ML20140G657 ML20140G672 ML20140G685 ML20140G703 ML20140G710 ML20140G715 ML20140G735 ... further results
References
FOIA-97-34 NUDOCS 9705130142
Download: ML20140H446 (7)

Text

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3 TART NEW PAGE'

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4 PROPOSED CHANGE NO. 4 Y'+'

'. "FOR* THE SOUTHWEST EXPERIMENTAL FAST OXIDE REACTOR h , . ,

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D0.CKET 50-231

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PROPOSED CHANGE No. A FOR THE SOUTHWEST EXPERIMENTAL FAST OXIDE.

l pm -u; . REACTOR I

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SOUTMWEST EXPERIMENTAL

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! EVISION OF THE CURRENT' TECHNICAL SPECIFICATIONS 15 DESIRED AS

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ShECIFICATION3.10-EOFTHEPREfiiNTSEFORTECHNICALSPECIFICATIONS REQUIRES THAT CERTAIN ADDITIONAL SPECIFICATIONS BE APPROVED AND

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.INCORPORATEDINT5THETECHNICALSPECIFICATIONSPRIORTOINITIAL

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'c"< ' OPERATION AT '20 MWT.- TOESE SPECIFICATIONS ARE SUBMITTID HEREWITH,

' BASED ON EXPERIENCE GAINED IN OPERATING SEFOR UP TO AND INCLUDING f;.4 ,1NE 10 MWT POWER LEVEL.

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lip%.IIVA. DISCUSSION.l- ,

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,v/.W .MAY OCCUR IN THESE PARAMETERS DURING NORMAL REACTOR OPERATION.

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THE -REACTIVITY , REQUIRED TO REACH A GIVEN PO,WER LEVEL FROM THE .

ZERO POWER CONDITI6, AT 350 DEGREES F IS ESTIMbED FROM THE FOLLOV-

~A ING EQUATION \

DELTA X \ 0.692 \T SUBSCRIPT C - 350\ - 0.001785  ;

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! MIEL BY THE GROSS COVER GAS MONITOR. THE SENSITIVITY OF THE GROSS 1

COVER GAS. MONITOR HAS BEEN DEMONSTRATED AS REQUIRED BY 3.3.L OF l -

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] .9 , THETENNICALSPECIFICATIONS\HOWEVER,THEREISNOOPERATINGEI-1 PERIENCE WITH LEAKY FUEL RODS THAT CAN BE USED TO ISTABLISH FIRM QUANTITATIVE LIMITS ON ACCEPTABLE COVER GAS ACTIVTY LEVELS, COM-

, POSITION 0F FISSION PRODUCTS IN THE COVER GAS, OR' FISSION PRODUCTS l L. '

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IN THE. SODIUM. EXPERIENCE WITH OPERATING FAST-SPECTRUM SODIUM-i %p., . 000 LED OIIDE' FUELED REACTORS '\REFS.1 AND 2\ INDICATES THAT LEAKY 4 .;, ,

4 :c,ey,,,. FUEL RODS. SHOULD BE EXPECTED BUT THAT CONTINUED OPERATION IN THE I i'M ; PRESENCE OF " LEADERS" DOES NOT PRESENT A SAFETY PROBLEM. FOR i .M.'.

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IS0$::iCANNOT BETECT THE. RELEASE 0T- TISSION.! GAS, TROP ( ONE ADDITIONAL .

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. . REQUIRED TO OBTAIN SUFFICIENT INFORMATION TO ALLOW RESUMPTION OF

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CAREFUL SURKEILLANCE OF GROSS COVER GAS ACTIVITY AN

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-i ?J pE 1ME., SAFETT SIGNIFICANCE 0F OPERATING WITH AN UNDETICTED FUEL R0D 3,,') ' ' FAILURE HAS _BEEN DISCUSSED PREVIOUSLT \REF. A\.

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. .e SEFOR R,AS BEEN SUCCESSFULLY .0PERATED To A sPOW]

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$ U.T . INDICATION' 0F LOSS OF CLAD .INTEGRITT.

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"f pis. INERE IS .NO OPEitATING. EXPERIENCE AT 'SEFOR(tNAT CAN.'BE.USED7TO ESTAB-

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THE PROPOSED LIMITS N ANOMALIES OTHFR THAN THf ASSOCIATED WITHTHE

,- REACTOR COVER GAS ACTIVTY ARE BASED CN ACTUAL OPERATING EXPERIENCE AT SEFOR. AS DISCUSSED IN THE BASES FOR THESE PROPOSED LIMITS, THE VALUES HAVE BEEN SELECTED SO THAT THE PROPER ACTION IS TAKEN ON VARIA-TIONS' THAT ARE STATISTICALLY SIGNIFICANT. ACTIONS TO BE TAKEN IN THE i

. EVENT ANY OF THE PROPOSED lit:ITS ARE REACHED ARE COVERED IN 4.9 0F THE TECHNICAL SPECIFICATIONS.

l REFERENCES \

1. G. KAYSER,'" PROBLEMS DUE T0 FISSION PRODUCTS IN CIRCUITS OF SODIUM-COOLED FAST REACTORS IN THE EVENT OF CAN FRACTURES," ZUEFNR-l 593 \0RIGINAL REPORT NO. DRP/SEMTR/ CAD.65.R.575\, NUCLEAR 5ESEARCH CENTER CADARACHE AND SACLAY \ FRANCE \, DECEMBER,1965.

l j

l , 2. A. I. LEIPUNSKII, ET AL., " EXPERIENCE GAINED FROM THE OPERATION OF t s L ' 1HE BR-5' REACTOR, 1964-5,8 PAPER 2/3'0F PROCEEDINGS'0F,TNE LONDON CONFERENCE ON FAST'BREEDE5 REACTORS, MAY, .1966, PP'171-185-M. s .

e

t gp,i 3 , t jff [ 3. .DR. . STANLEY J. ' STACHURA \CADARACNEiREPRESENTATIVE,' AEC-EURATOM

..Yk$T REACTORJEICH NGE PROGRAM \,. 'MbhTIN. HEP RT NO.48,',"Nnh(( JU 6- ,,~;19B*, PP 3,b. ~

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