ML20196B093
| ML20196B093 | |
| Person / Time | |
|---|---|
| Issue date: | 06/08/1988 |
| From: | Alexander Adams Office of Nuclear Reactor Regulation |
| To: | Rubenstein L Office of Nuclear Reactor Regulation |
| References | |
| PROJECT-678A NUDOCS 8806300190 | |
| Download: ML20196B093 (3) | |
Text
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jmauq[g UNITED STATES 4
NUCLEAR REGULATORY COMMISSION
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WASHINGTON D. C. 20555 O
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%,.....f" June 8, 1988 Project No. 678 MEMORANDUM T0:
Lester S. Rubenstein, Acting Director Standardization and Non-Power Reactor Project Directorate Division of Reactor Projects III, IV, V and Special Projects FROM:
Alexander Adams, Jr., Project Manager Standardization and Non-Power Reactor Project Directorate Division of Reactor Projects III, IV, V and Special Projects
SUBJECT:
SUMMARY
OF AIR FORCE VISIT On May 26 I attended a meeting of the Air Force Terrestrial Nuclear Reactor Safety Study Group at McClellan AFB. The most lasting impression is one of professionalism and the comitment of manpower and resources to do the job right. The facility is under construction with the reactor a few percent complete. We will be requested to review and comment on the updated SAR that construction is based upon. This request should occur this fall. The scope of the review (and hence our resource commitment) has not been determined by the Air Force as of this date.
The current issue that is of greatest interest to the Air Force is the computerized control console. As you are aware, we are currently working on this and should address their initial questions by the end of June. They also l
requested interpretation of 10 CFR 70.24 which states requirements for criticality monitors.
l
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There are some interesting aspects of the Air Fccce licensing process that I l
would like to coment upon.
1.
They wrote their PSAR based on our guidance for power plant licensing.
The result is a well written book that suffers from sQme amount of overkill.
2.
The reactor is near the base main runway. A plane crash was addressed by
-0 a statistical analysis that showed that the probably of a hit was 10 per l
year.
I can't recall this approach being used for a non-power reactor accident before.
3.
We fook at what has been approved in the past as part of the basis for a'
the determinations we make. They started with a clean sheet. For example, they did detailed calculations to show that a TRIGA could run at s, h"' )
1 MW without boiling in the natural convection cooling mode. The SAR g
will serve as an additional reference for our work on TRIGAs.
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' 4.
They conclude that the reactor is inherently safe and that a scram system is not required to prevent exceeding the safety limit, but the facility has been designed with the normal TRIGA scrams.
5.
One of the accidents they look at is the fuel cladding failure of all the fuel elements at once. We normally assume a single element failure.
The facility is expected to be placed in service in early 1989.
If it works as planned, other facilities may be constructed.
Y' Alexander Adams, Jr.
Pr$'ctManager Standardization and Non-ower Reactor Project Die orate Division of Reactor Projects III, IV, Y and Special Projects Office of Nuclear Reactor Regulation cc:
T. Murley J. Sniezek F. Miraglia D. Crutchfield
y June 8, 1988
_2-4.
They conclude that the reactor is inherently safe and that a scram system is not required to prevent exceeding the safety limit, but the facility has been designed with the normal TRIGA scrams.
J 5.
One of the accidents they look at is the fuel cladding failure of all the fuel elements at once. We normally assume a single element failure.
The facility is expected to be placed in service in ear?y 1989.
If it works as planned, other facilities may be constructed.
/s/
Alexander Adams, Jr., Project Manager Standardization and Non-Power Reactor Project Directorate Division of Reactor Projects III, IV, Y and Special Projects Office of Nuclear Reactor Regulation cc:
T. Murley J. Sniezek F. Miraglia D. Crutchfield Distribution:
. Cen'cral_. File '
OGC-Rockville NRC & Local PDRs EJordan PDSNP Reading JPartlow LRubenstein ACRS (10)
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