ML20212L306
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a TRIP REPORT Nane of Traveler:
L. Slegers Date and Place:
August 6, 1976 Marviken Sweden
Purpose:
Technical Oeuncil Meeting Marviken Project Attendees:
See AttacInent Sumary:
1.
performed with good measurment results.At the time of t owSowns had been 2.
Pressure oscillations have cppeared in the bl of generally lower anplitude than in blowdown 13 of th owdowns to date series.
Blowdown 21 with prepurging shows lower anplit d e first the previous four tests which were not prep u es than urged.
3.
pool taiperature and man flowrate have an effe a es such as oscillations.
(
ressure 4.
low steam massflow.As of blowdown 21 errphasis has been placed on v ent chugging at 5.
reflecting the interest in chugging. Test conditions for blow e selected 6.
At the present time the program is smewhat und program managenent suggests doing an additional test i erspent. me as blowdown No. 25.
n Oct. 76 7.
Of a nunber of alternative test conditions sel suggested that Mr. Slaughterbeck represent the ct. 5, 1.975.
It is frm this office.
with written instructions Discussions:
me change to include the extension of the program. chugging huse in the blowdown is a s of valves starting at high flow rate which toward thin these test the reduced by means of closing the valve.
eans graduhlly.
e end of the transient are the originally planned man flowrates test condition was proposed by the W Germsimulate
, even prepurging interest to the NIC as well.
re steamflow. mis g'
an representative but is of incorporated in see of the later tests.It therefore was supported at the 9 7$tMk W ;
evoia,0406 e701ao PDR FOIA 8g MORROW 85-782 PDR
r A further test feature sW by the W. Geman representative was to install a separate cylindrical partition around a single vent.
'!his test is to be perfomed in conjunction with a test where a group of 29 downoczners is enclosed in a separate pool portion, the renaining 28 being closed off. A test of this kind is of interest since it provides a direct emparison between single and nultiple vent operation under identical flow conditions.
It is uncertain whether the project can incorporate this change, but the prospect should be pursued at the next TAC meeting by the NRC representative.
Further detsilris presented in the attached project meeting minutes, i
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