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J ADVISORY COMMITTEE ON REACTOR SAF
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n March 13, 1963 MEIORANDUM FOR:
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.Mr. E. G. Case, Assistant Director for Facilities Licensing Division of Licensing & Regulation i
N. BODB:iA BAY SUB00tM1 TEE W=>,nn ON MARCH 20, 1963
. 82
'ibe attached questions have been developed Bay Subecamittee Meeting on March r
20, 1963 coming Bode 6a Dr. Kouts has requested that they be passed t r
y DL&R and so that he vill be prepared to discuss them at the Sub e applicant Meeting.
committee l
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R. F. Fraley Executive Secretary
Attachment:
List of Questions for Bodega Bay Subete
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QUESTICIE FOR DODRIA BAY SUBCOMMI+va:>:
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1.
Discuss the tests of dry well leak rate.
2.
Give further information on the dry well cooling system 3
i Are any themal expansion problems foreseen in the design of th toroidal suppression chamher and its attached piping e
4.
to emergency air cleanup on high radiation alarm. D ormal I
5 Are there dead flow or lov flow regions in the reactor vessel where excessive heating may occur.
Two possibilities are i
(1) j The region between the flow baffle and the vessel vall at the inlet plenum and, l
(2)
The space between the vessel vall and the themal shield i
6.
Discuss the effect of the choice of 6" steps for control rod t
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the main steam line and what is the effect of le i
j vell pressure.
on dry i
" ~o 8.
h t is the anticipated pressure transient in the reactor vessel on turbine trip.
more turbine bypass valves.Hov is this affected by the failure of one or How vill f i
be indicated. ht failures can occur.ailure of a bypass valve 9
Will the poison injection system be on the emergency p How will,this system be activated and how will it be tested ower system.
10.
It appears from the drawings that turbine rupture could ru t the feedvater lines.
consequence.
Is this the case and what would be the l
p ure t
l 11.
Please state locations of the components of the shutdoun c system and of the core spray pump and cooler.
ooling 12.
Discuss the problem of small condenser leakage leading t chlorine content,of the primary water.
o increased 13.
In which systems' s salt water cooling used.
14 Some mention is made of the use of differential cator.
to serve this function.
re devices Can this genersi question be discussed.
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'15. 'Do the dry veu closures seal automatically on'high. dry well pressure.
.16.
ht measures will be' taken to insuie early discovery of.
- pipe failures in the dry well and in other inaccessible places.
17. Is there a single controller for the turbine bypass valves.
- 18. Would the ducting of steam from the relief valves in the main
. steam line' alter the peak suppression. chamber pmssures as :
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seen in W Moss Landing tests..
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- 19. ' Be papared to discuss h plan to design some primary circuitT
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components - such as the turbine and the feedwater system - to.-
l 0.2 G accelerations'and the possibility h t earthquake scrams
]f, should be provided which also close the related isolation. valves..
. 20.
Discuss the plans for ecological surveys.
21.
Discuss the basis for' omission'of filters and iodine removal systems from the active gas disposal' system.:
- 22. ' Discuss the monitoring of the condenser' discharge.-
S.
i 23 Where are the main. steam line isolation valves..
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- 24. Be prepared to discuss the.leffect 'of halogen content 'of the Primary system on the main pipe break outside the' dry wen with -
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- associated ground release.:
25 Discuss the criter$a for setting the length of time' required.for closure of. isolation valves. '
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