ML20058K965
| ML20058K965 | |
| Person / Time | |
|---|---|
| Site: | University of Missouri-Columbia |
| Issue date: | 08/01/1990 |
| From: | Weiss S Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20058K963 | List: |
| References | |
| R-103-A-020, R-103-A-20, NUDOCS 9008030192 | |
| Download: ML20058K965 (8) | |
Text
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NUCLE AR REGULATORY COMMISSION '
W ASHING T ON, D. C,70665
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l UNIVER$1TY OF MISSOURI AT_ COLUMBIA DOCKf7 NO. 50-106 AMENDMENT TO TACILITY LICENSE l
l Apendneent ho. 20 i License No. R-103 !
- 1. The Nuclear Regulatory Comission (the Comission) has found that: ,
A. The application for anendment to facility License No. R-103 fileo by I the University of Missouri at Columbia (the licensee), dated Septernber 12,198C as supplemented on September 11, 1967, March 11, l 1988, July 22,1988, february 1,1989. April 25,1990, and May 17, i 1990, complies with the standards and.re '
Energy Act of 1954, as amended (the Act)quirenants of the Atomic
, and the Comission's regu-16ttons as set forth in 10 CFR Chapter I; l
B. The facility will be operated in conformity with the application, i the provisions of the Act, and the reguistions of the Comission; )
l C. There is resscnable assurance: (1)thattheactivitiesauthorized by this amendnent een be conducted without endangering the health end safety of the public, and (ii) that such activities will be l conducted in compliance with the Comission's regulations set forth in 10 CTR Chapter I; l 1
D. The issuance of this amendrent will not be inimical to the comon defense and security or to the health and safety of the public; J E. The issuance of this amendment is in accordance with 10 CTR Part 51 of the Consnission's regulations ano all applicable requirernents have i been satisfied; and F. Prior notice of this arnndnent was not required by 10 CTR 2.105(a)(4) :
and publict. tion of notice for this amendnent is not required by 10 CTR 2.100(a)(2). ;
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- 2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the enclosure to this license amendment, and paragraph 3.B of License No. R-103 is hereby amended to read as follows' B. Technical Specifications '
The Technical Specifications contained in Appendix A, as revised through Amendmnt No. 20, are hereby incorporated in the license. l The licensee shall operate the facility in accordance with the j Technical Specifications, j
- 3. This licer.se amendient is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION l
Seymour H. Weiss, Director ;
Non Power Reactor, Decomissioning and Environmental Project Directorate Division of Reactor Projects - III, IV, V and Special Projects Of fice of Nuclear Reactor Regulation Ericlosure:
Appendix A Technical Specifications Changes Date of Issuance: August 1, 1990 l
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. 1 ENCLOSURE TO LICENSE At-lENDMENT NO. 20 FACILITY LICENSE NO. R-103 DOCKET NO. 50-186 ,
Replace the following pages of the Appendix A Technical Specifications with the enclosed pages. The revised pages are identified by amendment number and contains a vertical line indicating the area of change.
Remove Pages insert Pages 3.8-1 3.8-1 3.P-2 3.8-2 4.1-1 4.1-1 4.1-2 4.1-2 5.5-1 5.5-1 5.5-2
' TECHNICAL SPECIFICATION t
UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY 1
Number 3.8 Page 1 of 2 Date
SUBJECT:
Reactor Fuel Anoticability This specification applies to fuel elements used in the reactor core.
]
Oblective The objective of this specification is to assure that the reactor fuel is operated within acceptable design considerations thus maintaining fuel integrity.
Snacification l- a. The peak burnup for UAl x intermetallic fuel shall not exceed a calculated )
2.3 x 1021 fissions per cubic centimeter. ) )
, i
! b. The reactor will not be operated using fuel in which anomalies have been 1
detected or in which dimensional changes of any coolant channel between fuel plates exceed ten (10) mils. ,
- c. The reactor core shall consist of eight fuel assemblies.
Exception: The reactor may be operated to 100 watts above shutdown power on l
j 1:;ss than eight assemblies for purposes of reactor calibration o. multiplication studies,
- d. All fuel elements or fueled devices outside the reactor core shall be stored in a geometry such that the calculated K gg e is less than 0,9 under all conditions )
of moderation. !
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TECHNICAL SPECIFICATION UNIVERSITY OF MISSOURI j RESEARCH REACTOR FACILITY Number 3.8 j Page 2 of 2 Date
SUBJECT:
. Reactet Fuel (continued)
- e. Irradiated fuel elements shall be stored in an array which will permit sufficient natural convection cooling such that the fuel element temperature will not exceed design values. )
)
1 Bataa O. The fuel burnup limit restricts the peak fissions per em3 burnup to values )
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 August 12,1968, Change No. 6 dated November 25,1970, and Application )
- dated September 12, 1986 with supplements). )
.b. Specification 3.8.b assures that fuel elements which have been inspected i
and found to be defective are no longer used for reactor operation,
- c. To assure the validity of the safety limit curves (specification 2.1) and )
other safety analysis, specification 3.8.c limits the core to eight fuel ) i elements at any significant power level. ) l
- d. The limits imposed by specifications 3.8.d and 3.8.e are conservative and
, assure safe fuel storage.
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. TECHNICAL SPECIFICATION
(' ) UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY I
Number 4.1 Page 1 of 2 :
l Date
SUBJECT:
Reactor Fuel t
Anoticabilltv '
This specification applies to reactor fuel elements.
Oblactive The objective of this specification is to assure that reactor fuel elements are of the type designed for use in the reactor.
Snacification
- c. Each reactor fuel element shall contain 24 fuel bearing plates with nominal active length of 24 inches and plate thickness of 0.05 inches. The nominal distance between plates shall be 0.080 inches. Plate nominal cladding thickness shall be 0.015 inches, i
- b. The' fuel meat shall be fully enriched U235 aluminide, UAlx . ]
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- c. Each of the reactor fuel elements shall be either of two types; one with a )
maximum U235 loading of 1270 grams (Extended Life Aluminide Fuel) and a )
second one with a maximum U205 loading of 775 grams. The reactor shall ]
operate with any possible combination of these two fuel element types. The ] )
fuel meat of the Extended Life Aluminide Fuel (ELAF) may also contain boron ) ,
carbide (B 40) as burnable poison. The boron content shall not exceed 1.08 )
grams of natural boron per element. )
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.- TECHNICAL SPECIFICATION !
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UNIVERSITY OF MISSOURI RESEARCH REACTOR FACluTY Number 4.1 Page 2 of 2
SUBJECT:
Reactor Fuel Bassa
- c. and b.
i The fuel elements for the University of Missouri Research Reactor (MURR) are )
l one of a configuration (aluminide UAix plate type) successfully and extensively )
used for many years in test and research reactors. The specifications 4.1.a )
and 4.1.b require fuel content and dimensions of the fuel elements to be in )
accordance wtih the design basis criteria for proper heat transfer and, hence, )
can be safely used to the burnup limits of Technical Specification 3.8. )
- c. The ELAF fuel elements have the same physical dimensions as the 775 gram )
elements. The only changes will be in the U235 loading per plate and the )
addition of burnable poison. Extensive neutronic and thermal hydraulic analy. ) ,
ses indicate that the performance of the ELAF fuel elements are satisfactory )
and that the University of Missouri Research Reactor can operate safely at )
10 MW steady state power level with ELAF fuel elements or with any mixed )
combination of 775 gram and 1270 gram fuel elements without violating the )
current safety limits (Technical Specification 2.1). )
References -
- 1) Hazards Summary Report, July 1965, Section 4.2
- 2) Hazards Summary Report, July 1965, Section 5.5
- 3) Letter, Ssplember 12, 1986, University of Missouri to Nuclear Regulatory ) ,
Commission (NRC) requesting amendment to R 103 operating license. )
- 4) Letter, September 11, 1987, University of Missouri to NRC as a response to )
NRC request for additional information dated May 7,1987. )
- 5) Letter, March 11, 1988, University of Missouri to NRC as a response to )
NRC request for additional information- dated January 11, 1988 )
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.- TECHNICAL SPECIFICATION
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) UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY Number 5,5 :
Page 1 of 1 Date :
SUBJECT:
Fuel Elements ,
Aeolicabilliv This specification shall apply to the surveillance of the reactor fuel elements.
Oblective ;
The objective of this specification is to reasonably assure proper performance l cf the reactor fuel.
Soecification I l
One out of every eight (8) fuel elements that have reached their end of life )
will be inspected for anomalles, )
Sases The specified inspections along with the on line fission product monitoring ) ,
and the routine water chemistry inspection of the primary coolant provides for )
the detection of anomalies resulting from reactor operation and reduce the )
1 possibility of fission product release to the primary coolant, inspecting the )
fuel elements at the end of their life has the added advantage of allowing for )
the decay of the fuel elements and, hence, reducing the personnel exposure. )
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