ML19263C749
| ML19263C749 | |
| Person / Time | |
|---|---|
| Site: | North Carolina State University |
| Issue date: | 01/31/1979 |
| From: | Bohannon J North Carolina State University, RALEIGH, NC |
| To: | Zwetzig J Office of Nuclear Reactor Regulation |
| References | |
| ADM-1-1-16, NUDOCS 7903010273 | |
| Download: ML19263C749 (13) | |
Text
M NORTH CAROLINA STATE UNIVERSITY AT RALEIGH SCIIOOL OF ENGINEERING DEPARTMENT CF Nuctare ExcmEtRt Nuctr4R REACTOR pAOCRAM Box 5636 Zie 27650 31 January 1979 File No. ADM l-1-16
+
Docket No. 50-297 Operating Reactor Branch #4 Attn: Jerry Zwetzig US Nuclear Regulatory Commission Washington, DC 20555
Dear Sir:
A review of our Facility License, R-120 this Docket, dated 25 August, 1972, disclosed what appears to be an administrative error.
Paragraph 2,B,(2) authorizes "up to 435 kilograms of uranium dioxide" whereas we have 433.9 kilograms of uranium.
This amount has been reported on the Form 742.
It is requested that our Facility License R-120 be amended to delete the word " dioxide" from Paragraph 2,B,(2), line three (3) therein.
By letter fru.a Juues R. Dohannon, Jr., Nuclear Operatienc Adminictrator, dated 9 April, 1970, NCSU made " application for a license for receipt, possession and storage only of thirty-four (34) PULSTAR fu a.1 ants and six (6) additional fuel pins."
Attached to this letter was "Information To Be Submitted For A Special Nuclear Material License Unter 10 CFR 70 For Storage Only."
A copy of this letter and its attachment are included herewith.
Paragraph B of the above cited attachment describes the PULSTAR fuel, specifying the total number of pins (34 elements x 25 pins per element plus 6 pins = 856).
The composition of each pin is stated, showing the enrich-ment to be 4%.
Summarizing:
Weight x 656 pins Material per pin Total weight UO 572 1 11.44 gm 489,632 gms 2
U 504 1 10.08 gm 431,424 ges U-235 20.17 1 0.40 gm 17,265.52 gms b
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7003010 # 73
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. 31 January 1979 Hence, the amount of uranium on hand is consistent with the s;atement in the License H-120 if the word " dioxide" were deleted.
Sincerely, A
J James R. Bohannon, Jr.
Nuclear Operations Administrator JRB,jr:ake
Attachment:
cc:
R.D. Cross Approved:
04W 1tA00 x Joab T. Thomas, Chancellor Thomas S. Ellemen, Head North Carolina State University Dept. of Nuclear Engineering Subscribed and sworn to before me this k
day ofx Nf A< ms,
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No'ary Public (
My mmission expires l $$
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2 NORTH CAROLINA STATE UNIVERSITY AT RALEIGH SCIIOOL OF ENGINEERING DtrAanar.sr or Nucuan Esc xtr.nzsc Box 563a z r nco7 April 9,1970
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Director Division of Material Licensing i
U. S. Atomic Energy Co= mission
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Washington, D. C. 20545
Dear Sir:
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-North Carolina State University at Raleigh bereby r:akes i
t application for a license for receipt, possession and storage only of thirty-four (34) FULSTAR fuel elemeni;s and six (6) additional fuel pins.
The total contained U-235 in the elements plus the additional pins vill be 17 5 kilograms. Application is also made to receive, possess, and store (only) 5 grams U 235 contained in two fission chambers and SO gr-(
Pu-239 contained in a 5 Ci FuEe start-up source.
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Information required under 10 CFR 70 for obtaining such a li-cense is attached.
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We vould appreciate your considerotion of this application at the earliest possibic date in order that Canadian Westinghouse can pro-ceca with. their.applic ation in. Canada for shiprznt to the U.o
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Sincerely,
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James R. Bohannon, Jr. ~
JEBjr:1pe Associate Professor Attachments:
Huclear Operations Administrator
-Information required under 10 CFh ' O
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Pa6es 3-31 and 15 h nem 4JLSTAR d2rety
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Analysis Report Ls,. :et Ho. 50-297
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AMFDraving89-113ko090 Ahroved:
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fl$M J hn T. Caldwell, Chance 11orN Raymond L. Murray, Head
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orth Carolina State University Department of Nuclear Engineering.
Subscribed and svorn to before ne this /N day of M
,1 - 19 '20.
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e Notary Fu~clic
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My Coc=11ssion expires
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- 6. STEEL PLATE IS COVERED WITH J
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3/4= WOOD.
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- f. PITS NUMBERED 10,18,19, 22 & 23 22 7
ARE UNAVAILABLE FOR USE BECAUSE THEY CONTAIN NCSUR-3 FUEL.
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N i-1 NOTES
- l. SECURITY BAR FIXED IN PLACE
- 4. SIDE PANEL WITH PADLOCKS AT POINTS (A).
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- 5. FUEL ELEMENT SUPPORT BAR I
- 2. THIRTEEN-4 /" INSIDE DIAMETER WELDED TO SIDE PANELS AND 4
FUEL ELEMENT HOLDING TUBES-EACH TUBE.
SPACED SIX INCHES FROM CENTER
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- 6. ' WALL MOUNTING BRACKET WILL BE PADLOCKED TO A MATCHING BRACKCT,.
- 3. ANGLE BRACKETS WELDED TO WHICH IS PERMANENTLY SECURED SIDE PANELS AND EACH FUEL TO REACTOR BAY WALL.
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ELEMENT TUBE.
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TATILS 3-2 (cont'd)
Worth of a single niel element O.5% Ah/k to 15%
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.Equilibriu.n.
~1.05,% 6 k/k 8 hr.
-0.25% 6 k/k Peak after shutdown
-1.06%6k/k Reactivity Allowance for 1 Mv steady state 5 x 5 core Temperature + Doppler 40 71% 6k/k Xenon-135 (8 hrs) 40.25% 6h/k Control
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Minimum required (no beam tube or experiments)
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cxperiment in core or external to core
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Min. Period 3.85 msec Epeak 18.3 Mv-sec
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Max. UO2 temp.
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Reactivity S,tep 172% 6k/k j
Number of Pulses /hr 5
j Control Re>d Horth Avg. Shim Rod Worth
-2.4% O k/k Worth of 3 shim safety rods
-7.14% A k k Worth of Pulse Rod
-2.4% 6 k k Keff - corc
> x > core (cold clean rods out) 1.0354 5 x 6 core (cold clean rods out) 1.0534 x
5 x 5 core (cold clean rods in) 0 9641 K rr - Fuel Gtorage e
.Lj uc'Fients (no poison built in) 0.6363 e
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15 2 Facility Ibscription 15 2.1 Reactor Building
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1.
The reactor is housed in a closed room of the building
. desi ned to restrict leakage.
C 2.
The minimum free volume of the reactor room shall bc 8 x lok cubic feet.
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3 During reactor operation air or other cases exhausted from the reactor room shall be released to the environment at a minimum of 100 feet above ground level, except for periods of time not to exceed two days.
4.
Fuel Storage All fuel elements shall be stored in a geometrical a.
array where the keff is less than 0.8 for all conditions of moderation.
'b.
Irradiated fuel elements and fueled devices chall
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be stored in an array which vill permit suff'cient natural convection cooling by water or air s 2ch
, that the fuel element or fueled device temperature vill not exceed desi n values.
6 15.2.2 Reactor Core 1.
The reactor core shall consist of PULSTAR fuel elements.
The elements shall be placed in a close packed array except for single positions which micht be occupied by in-core experiments and experimental facilities.
^
-2.
Peak power levels during pulsing that exceed 2600 Mw shall be investigated to determine the reason for the pulse
(
O 15-4 e
- 7