ML20055C559
| ML20055C559 | |
| Person / Time | |
|---|---|
| Site: | University of Missouri-Columbia |
| Issue date: | 05/17/1990 |
| From: | MISSOURI, UNIV. OF, COLUMBIA, MO |
| To: | |
| Shared Package | |
| ML20055C558 | List: |
| References | |
| NUDOCS 9005250058 | |
| Download: ML20055C559 (3) | |
Text
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TECHNICAL SPECIFICATION-q UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY.
.i m<o Number 3.8 i
p Page 1 of 2 Date L
SUBJECT:
Reactor Fuel
' Anolicability This specification' applies to fuel elements used in the ' reactor-core.
Objective -
lThe; objective of this specification is to assure that the reactor fuel is I
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Loperated within acceptable design considerations thus maintaining fuel i
' integrity, f
Soecificatio n '
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- a. The peak burnup for. UAl intermetallic fuel shall not exceed a calculated
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x
!.2.3 x 1021 fissions per cubic centimeter.
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- b. TheLreacto'r will not be operated using' fuel in which anomalies-have been
'- detected or 'in which dimensional changes of any coolant channel between-_
j ifuel: plates exceed ten (10) mils.
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' c..The-reactor core shall consist of eight fuel assemblies.
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- Exception: The reactor may be operated to 100 watts above shutdown power on -]
less than eight assemblies for purposes of reactor calibration or multiplication ]
studies.-
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- d. All fuel elements or fueled devices outside the reactor core shall be stored in a geometry..such that the calculated Keff s less than 0.9 under all conditions
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i of moderation.
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- TECHNICAL SPECIFICATION
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UNIVERSITY OF MISSOURI K
RESEARCH REACTOR FACILITY Number 3.8 Page 2 of 2 Date L
SUBJECT:
Reactor Fuel (continued) u
' e; Irra'hted fuel elements shall be stored in an array which will permit suf'he,nt. natural convection cooling such that the fuel element temperature 1
- will not exceed design values.
Bases 3 burnup to values
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- a. The fuel burnup limit restricts the. peak fissions per cm L
correlated to result in less than a 10% swelling of the fuel plates, it has -
been' found that fuel plate swelling of less than 10% has no detrimental effect~ on fuel plate performance. (Ref. License R-103 Change No. 4 dated i
August 12,1968, Change No. 6 dated November 25,1970, and Application-
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.' dated September 12,1986 with supplements).
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.b; Specification 3.8.b assures that fuel. elements which have been inspected and found-to be defective are no longer used for reactor operation.
cc1To assure the validity of the safety limit curves (specification 2.1) and
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other safety analysis, specification 3.8.c limits the core to eight fuel _
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elements at any significant power level.
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d.- The' limits imposed b'y specifications 3.8.d and 3.8.e are conservative and-assure safe fuel storage.
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,7 TECHNICAL SPECIFICATION 3.
UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY Number 5.5 L
Page 1 of 1 Date i
SUBJECT:
- Fuel Elements Acolicability This specification shall apply to the surveillance of the reactor fuel ' elements.
Objective The objective of this specification is to reasonably assure proper performance
'of the reactor fuel.
j Soecification i
One out of every eight (8) fuel elements that have reached their end-of-life
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will be inspected for' anomalies.
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Bases The specified inspections along with the on-line fission product monitoring -
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and the routine water chemistry inspection of the primary coolant provides for
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-the detection of anomalies resulting from reactor operation and reduce the
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possibility of fission product release to the primary coolant.
Inspecting the
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fuel elements at the end of their life has the added advantage of allowing for
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the decay of the fuel elements and, hence, reducing the personnel exposure.
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