ML20126E366

Responds to Request for Addl Info Re Tech Specs Changes 21, 22 & 24.Discusses Reactivity of gadolina-bearing Fuel & Potential Use of New Fuel Storage Racks

ML20126E366
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	01/19/1971
From:	Walke G CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Morris P, Skovholt D US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 8101230388
Download: ML20126E366 (5)

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TO-DR P A MORRIS, DIRECTOR 3

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IN RESPONSE TO CUESTIONS ARISING OUT OF DISCUSSIONS WITH YOUR STAFF, I

UE SUBMIT THE FOLLOUING ERRATA AND ADDITIONAL' INFORMATION FOR THE i

TECHNICAL SPECIFICATIONS CHANGES REC.ENTLY SUBMITTED TO YOU.

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CHANGE NO 21

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228 0 PIRATING EXPERIENCE WITHlTHE ZG FUEL HES DEMONSTRATED TH VITY OF THE GADOLINI A-BIARING FUEL AT'THE BEGINNING OF LIFE W PREDICTID, AND THAT THE 2.0/ GADOLINI A DID NOT BURN Ob7 IN ONE YEAR AS EXPECTED. ANALYTICAL METHODS USED TO PREDICT GAD 01 IN BUR FUEL HAVE SINCE BEIN IMPROVID AND NOW INDICA;E THAT 1.25/

GADOLINI A PROVIDES THE DESIRED R$ ACTIVITY CHARACT RELOAD FUIL /ADICUATE SH'UTD0'!N M$RGIN AND.IMPROVID ABILITY /. CUAD CITIES'FSAR AME"DMINT.9 DESCRIBID IMPROV O!! DRESDIN 1 EXPERIENCE / THE RELOAD I-G' EXPERIENCE THE UNCONTROLLED REACTIVIT'IES AT USED TO FURTHER REFINE THESE METHODS.

BEGINNING OF LIFE NOU CALCULATED FOR THE F. FUEL /1.25/

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PORTID IN THE "F" LICENSE SU3MITTAL ARE VERY CLOSI TO THE RIACTIVIT 0?.IGINALLY CALCULATED AND REPORTED IN THE LICENSE S IG-FUEL /2.0/ GD203/. A DIRECT COMPARISON.07 UNCONTR BITUIEN ZG AND F FUEL IS VERY DIFFICULT TO MAKE. THE B TO MAME WITH THE DATA SHOUN FOR 'THE EG FUIL IS THE "F' SECTION" IN TABLE 3 0F THE "F" LICENSE SUBMITTAL. THIS DEMONSTRATES THE LOU $2 CALCULATED RIACTIVITY OF THE F-FUEL. ANY AND/OR NEUTRON FLUX OF THISE RIACTIVI' TIES WITH TH SECTION" INCREASIS' THE CALCULATED RIACTIVITY O APPROA05, BUT NOT EXCEED, THE EG REA'CTIVITY_.

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THERE WAS AN ERROR IN THE SUBMITTAL. SECTION 5.1.5, /C/. SHOULD READ..

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THE GENERAL DESIGN AND CONFIGURATIONS OF THE 6 TYPES OF FUEL

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BUNDLES SHALL. BE AS SHOWN IN FIGURES 5.2 THR'0 UGH 5.6. PRINCIPAL-g

.s DESIGN FEATURES SHALL BE AS ON TABLE 5.1.-

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s CUANGES 21, 22 AND 24 SECTION 4.2.11 / A/ OF THE TECHNICAL SPECIFIC ATIONS ST ATES TH AT....

"NEW FUEL STORED IN THESE RACKS /THE NEU FUEL STORAGE RACKS / SH UE MAVE AP-5Z LIMITED TO THAT DESCRIBID I11 SECTIONS 7 AND S...".

i PLIED FOR AFPROVAL OF TICHNI' CAL SPECIFICATIONS CHANGES TO USE F, J-1 AND NEW CENTERMELT FUEL. UE HAVE NOT AS YET RECEIVED THE AP-FROVAi.S, THERITORE, THEY CANNOT BE UNPACKED, INSPECTED. AND STORED A 2.,.

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.IU THI NEW FUIL STORAGE RACKS. SOME OF THE FUEL HAS-TODAY REACHED THE.,

.. s Gib FLANT AND WE UOULD LIEF TO UNPACK, INSPECT AND STfiE THE FUEL PROP-SRLY. DISCUSSIONS WITH YOUR STAFF RELATIVE TO THE REQUESTED TECHNICAL SPECIFICATIONS CHANGES INDICATED THAT THERE ARE NO MAJOR SAFETY CUESTIONS RELhTIVE TO THE FUEL AND RESULTED IN A MUTUAL' CONCLUSION THAT THE BEST PLACE FOR THIS FUEL ON THE BIG ROCK POINT SITE IS IN NId' FUEL STORAGE RACKS IN PREFERENCE TO. SHIPPING CONTAINERS. WITH' THE AGREEMEUT 0F YOUR STAFF, UE INTEND TO UNPACK THE FUEL, INSFICT IT AND THEN PLACE IT IN THE NEU FUEL STORAGE RACKS. UE, OF COURSE, WILL NOT INSERT THE FUIL INTO THE REACTOR UNTIL.UE HAVE RECEIVED APPROVAL FOR THE TECHNICAL SPECIFICATIONS CHANGES. FLEASE NOTIFY US IMMEDI ATELY 'IF YOU DO NOT CON-CUR WITH THIS COURSE OF ACTION.

GERALD J UALKE NUCLEAP, FUEL MANAGEMENT ADMINISTRATOR CC-R L H AU.~TER F W BUCKMAN.

R L HEIKS C J HARTMAN, BIG ROCK FCINT

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Post OFFICE FILE CODE U

50-155 DESCRIPTION:(Must Be Ufwlamised)

REFERRED TO DATE RECEIVED BY DATC M submitting addl info for Tech spec gg,,,,,

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