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 owSowns results.At had been the time of t 2.
Pressure oscillations have cppeared in the bl of generally series. lower anplitude than in owdowns blowdown to date 13 of th Blowdown the previous 21 with four tests prepurging which notshows wereurged. prep ulower e first es than anplit d 3.
( pool taiperature and man flowrate oscillations. a es such as have an effe 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 as blowdownmanagenent No. 25. suggests doing anerspent. additionalme test i n Oct. 76 7.
Of a nunber of alternative test conditions sel suggested frm this office. that Mr. Slaughterbeck ct. 5, 1.975. represent the N It is 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 reduced by means of closing the valve. eans test the the originally planned man flowrates graduhlly. e end of the transient are
, even prepurging g' test condition was proposed by the W Germsimulate re steamflow. mis interest to the NIC as well.
an representative but is of incorporated in see of the later tests.It therefore was supported at the evoia,0406 e701ao PDR FOIA MORROW 85-782 PDR 9 7$tMk W 8g;
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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