ML20052F265
| ML20052F265 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 05/10/1982 |
| From: | Christamaria BIER, MILLS, CHRISTA-MARIA, ET AL |
| To: | |
| Shared Package | |
| ML20052F261 | List: |
| References | |
| NUDOCS 8205120296 | |
| Download: ML20052F265 (3) | |
Text
.
TESTIMONY OF CHRISTA-MARIA I am Christa Maria, an Intervenor in this proceeding.
O'Neill Contention II E-3 Criticality because of increased density of storage.
I.
N.U.S.
cannot be viewed as an objective impartial service of expertise.
N.U.S.
contributed $5,000 to the pro nuclear campaign of the Maine Referendum.
This company has an investment in granting of expanded spent fuel pool storage and cannot be considered unbaised, especially in light of information such as that set forth in " Super-criticality Through Optimum Moderation in Nuclear Fuel Storage."
48 Nuclear Technology at 251-260 (1980) where it is shown that cal-culations of supercriticality may depend on the " computer codes and methodology employed, yielding results that disagree with each other to a relevant extent."
II. Dr. Kims assumptions and calculations bear closer scrutiny.
A.
Boiling may not be a conservative water temperature in l
criticality analysis.
l l
1.
Pressure at the bottom of the spent fuel pool is 28.14 p. sia at atmospheric pressure.
The boiling temperature at the pressure is 247 F 2.
Failure of motor operated valves TRO r064
[
and r068 in high temperature and high hummidity
[
could cause temperature of the pool to rise l
oven higher because of increased containment pressure.
8205120296 820510 PDR ADOCK 05000155 T
4 i
B.
Dr. Kim dismisses contribution to rack cell K as from fuel
/
[
handling accidents because of " lack of clearly defined physicial consequence of this accident."
pg. 64 of 68.
C.
The maximum void in the pool water must be examined.
1.
It is not shown that 20.6% for the maximum steam void is conservative.
2.
The question of weather steam-voids in a
~
boiling pool could prevent circulation of j
water, is not addressed.
i 3.
It is assumed that a " uniformly distributed void condition throughout the rack K'esystem" ;is i
conservative. pg. 61 of 68
}
D.
Dr. Kims results of calculations are questionable.
1 1.
"The results of verfication show the maximum l
rack K to be 0.9502 slightly above the legal j
limit of 0.95. pg 65a of 68.
2.
In his calculations Kim states "It will be 4
later that the 21 K bias is not the same l
but the d K for modified G-3 is slightly higher.
i Since 3.80 w/o is very close to 3.82 w/o which
)
we have already made some calculations using 3.80 w/o we will t
use 3.80 w/o as the reference enrichment for KENO-IV normali-zation calculation and tolerances calculations with P.D.
Q.
-7.
j pg. 33 of 68.
This is not conservative.
I i
s
Testimony of Jack N.
Donohew, Jr.
O 'Neill Contention No. 11.
E-4 O ctober 5, 1981.
III.
The worst fuel handling accident, a postulated drop of the fuel transfer cask into the S.F.P. assumes damage of only 28 assemblies.
Damaged assemblies could create a self sustained reaction.
IV.
The release of large amounts of radioactivity in the event of a fuel drop accident or any accident due to criticality because of in-creased density of storage could endanger safe operation of the reactor.
Since the effective activity coefficient K is not pennitted to exceed.95 and since Dr. Kim's calculations reached this maximum, there is no room for the slightest error or deviation.
Because of the aforementioned variables, the S.F.P. expansion must be dinied.
Since Big Rock Point has a research and development license, Consumer Power Company doesn't know exactly what will go into the spent fuel pool.
It is forseeable that numerous types of experimental fuel and cladding will go into the spent fuel pool.
This could also include experimental failures.
Experimental failures in cladding or fuel that is stored in the pool could have drmnatic affects on radi-ation releases.
Increases in radiation from the pool will affect the possibility of criticality and also affect radiation releases for emergency planning purposes.
.