ML19326A251

Forwards ECCS Review for Inclusion in Div of Reactor Licensing Rept to Acrs.Addl Info Required from Applicant Re ECCS

ML19326A251
Person / Time
Site:	Davis Besse
Issue date:	06/24/1970
From:	Case E US ATOMIC ENERGY COMMISSION (AEC)
To:	Morris P US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 8002030110
Download: ML19326A251 (3)

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P. A. Morris, Director Division of Reactor Licensing DAVIS-BESSE - DOCKET No. 50-346 The enclosed review is submitted for inclusion in your report to the ACRS.

Original eiped b$

E. G. Case E. G. Case, Director DRS:SPB:RJC Division of Reactor Standards

Enclosure:

l Review - Davis Besse 1

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R. DeYoung, DRL K. Go11er, DRL R. Birkel, DRL Distribution:

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DE Reading DRS Reading SPB Reading bec:

1. Colmar M. Rosen R. Case l

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Emercency Core Coolice Svetan The a=argency cora cooling sy tc= (2CCS) for 0 vic-200:e h s bee: :aly:ad usi=3 : =cdified varcion of the T AS2-1 ceda. This coda describe the reactor ecolen: cysta= by tha u:a cf :co :::::ol vol =2s for the pri= :y leop =d cza for the 7::::uri:::.

~ha sys:e= is ;;cuped into tha :no ec:::al volu=as c the haci cf tc=pers:ura dia::ibu:1on. 22 ic:=ce to fIcv ::a calculated by dividia; de :::ctor cools:: Jetc= into 24 :sgicas =d calcul:01:3 the vo_.=-veighted ficv rasiet=ca for : cive: ruptura icentics b ed cc ec:= 1 flcv racia:::cca. Tha cd=1 incorpc= :

v=1 ble velocicy :c= bubbic rica =edal.

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ccda by Wanti 3 ouse for their Indi

?oin: 2 cvelusticas =d by 1:C h

vi:h their =ulti-nede R2LA? ccda h ve = iced questic : :=caming a

the ability to relichly predict the tha ther::1-hyd =ulic ra pensa of a racetor core during bicudcun follevi=3 12:32 cold-la; rupture with the =slytical =ethods praccatly bein; used. la view of thace conca=a va intend to require the applices: to p cvida additice:1 evidence, obtained with the use of cuitchla =uiti-nedo :::1 :icci 7

techniques, to verify th : the ECCS c'Jcta= is capabla of li=itic; l

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cora te=ps:scuras to acceptable icvels.

"a vill require this vori-fication to be provided prior to ir:cyceabic cc==it_ast: reistive to construction of tha e=aracacy cora cooling syst:=.

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