ML17272A450
| ML17272A450 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 04/13/1979 |
| From: | Lynch M Office of Nuclear Reactor Regulation |
| To: | Varga S Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7905150607 | |
| Download: ML17272A450 (8) | |
Text
April 13, 1979 Docket No.:
50-397 MEMORANDUM FOR:
Steven A. Varga, Chief, Light Water Reactors Branch No. 4 Division of Project Hanagem nt FROfh:
SUBJECT:
ff. D. Lynch, Project Manager, Light Water Reactors Branch I'lo. 4, Division,of Project f'lanagement FORTHCOMING MEETING WITH WPPSS CONCERNING THE I8IC PORTION OF THE WNP-2 FSAR Date fs Time:
Location:
Purpose:
Participants:
Thursday, April 19, 1979 9:00 a.m. - 10:00 a.m.
Room P-500, Phill fps Building, Bethesda, tId.
Discuss with the WPPSS management the staff's concer ns regarding Chapter 7 of the WNP-2 FSAR
[3RC S.
Hanauer D. B. Vassallo R. Satterfield WPPSS R. Cockrell, et.al.
S. A. Varga H. D. Lynch R. Scholl cc:
See next page.
Ori.gsnaa sSgaod, bp::
- 3. Iynch H. D. Lynch, Project Manager Light Water Reactors Branch No. 4 Division of Project Management PW:LWRf OP'P'ICCW MDLynch/jt SIIIINAMLW 4/13/79 OATC~
FOtm hRC-318 (ReT. 9.53) hECM 0240 PM:L R(4, r a
/7
>905Z5 0 goq V SI OOVCIINMCNTPIIINTINOOPPICCI I474 424 I44
~,
r I
r P
Washington Public Power Supply System ccs:
Joseph B. Knotts, Jr.,
Esq.
Debevoise 8 Liberman 1200 Seventeenth
- Street, N.
W.
Washington, D.
C.
20036 Richard Q. Quigley, Esq.
Washington Public Power Supply System 3000 George Washington Way P. 0.
Box 968 Richland, Washington 99352 Nicholas Legis, Chairman Energy Facility Site Evaluation Council 820 East Fifth Avenue Olympia, Washington 98504 Mr. 0.
K. Earle Licensing Engineer P. 0.
Box 968 Richland, Washington 99352 Nepom 5 Rose Suite 101, Kellogg Building 1935 S.
E. Washington Milwaukie, Oregon'97222 Ms.
Susan M. Garrett 7325 S. E. Steele Street
- Portland, Oregon 94206 Mr. Greg Darby 807 So.
Fourth Avenue
- Pasco, Washington 99301 Mr. Neil 0, -Strand Washington Public Power Supply System 3000 George Washington Way P. 0.
Box 968 Richland, Washington 99352
~ ~
I
~
E ~
E I
E 0
i 1
STRI BUTION M.D. Lynch ant:
M. Service MEETING NOTICE DI Docket File NRC PDR Local PDR TIC Branch LWR¹4 File NRR Reading H. Denton E.
Case D. Crutchfield D.
Bunch R.
Boyd R. Mattson R.
DeYoung D. Muller D.
Ross D. Vassallo D. Skovholt W.
Gammil1 F. Williams J. Stol z R. Baer
- 0. Parr S.
Varga P. Collins T. Speis
- lf. Haass C ~
Hel temes ACRS (16)
L. Crocker H. Berkow Project Manager:
- Attorney, ELD IE '(3)
SD (7)
Licensing Assist Receptionist L. Rubenstein l,. Soffer S.
R.
S.
F.
K.
T.
z.
R.
R.
W.
F.
V.
M.
R.
R.
B.
W.
Knight Hanauer Tedesco Pawlicki Schauer Kniel Novak Rosztoczy Bosnak Satterfield Butler Rosa Moore Ernst
- Denise, Ball ard Youngblood Regan G.
Chipman R.[Houston J. Collins W. Kreger G. Lear M. Spangler V. Benaroya L. Hulman H. Ornstein J.
- Ledoux, IE Principal Staf R. Scholl f
Participants:
(J C
0 oP V
~
I P
4 C
II, ~
kI
, ~S REGS ayC
~
4p
+
0 A.
I n0 0
aa
+0
~O
++**+
O UNITEO STATES NUCLEAR REGULATORY COMMISSION
. WASHINGTON, D. C. 20555
,APR 1 J 1979
')
dm Docket Nos.:
50-358, 50-352/353, 50-36
- 374, 50-387/388, 50-410, 50-32 50-397-APPLICANT:
Members of Mark II Owners'roup
SUBJECT:
MEETING WITH MARK II OWNERS GROUP TO DISCUSS INTERMEDIATE PLANT PROGRAM TASKS (MARCH 21, 1979)
~m-3ZZ~
~dk d
The purpose of this meeting was to discuss the status of sever al of the Mark II Ownels'ntermediate Program Tasks.
This included:
an indepth preview of several new tasks (i.e., the condensation oscillation test task and the Bechtel improved chug load definition task); preliminary observations from the ongoing CREARE multivent subscale steam tests; and preliminary observations from the completed in-plant CAORSO SRV quencher tests.
An'ttendance list and a copy of the meeting handouts are enclosed.
~Summar Several new tasks were recently identified as a part of the Mark II owners supporting program; In addition significant progress was made in several existing tasks in the supporting program.
A summary of the status report provided to the staff by the Mark II owners relative to these programs is provided below.
1.
Task A. 17,'Condensation 'Oscillation 'Test 'Pro ram The Mark II owners proposed additional full scale steam tests in the 4T facility at the February 13-14, 1979 Mark II owners meeting with the staff.
These new tests are directed towards obtaining a better understanding of LOCA related condensation oscillations in the downcomers.
Modifications in the full scale test facility vent length will allow a more conclusive assessment of vent length effects than is possible in subscale tests.
The purpose of this presentation d
jF ddd
Mark II Owners Group AFR 13 tgPg was to provide the staff with a description of the proposed test including:
objectives, instrumentation, test matrix, and parameter control.
In addition a description of the preliminary facility design was provided.
The original 4T facility included a non-prototypical vent.
In the new tests, the facility will be modified so that vent length would be prototypical of the Mark II plants.
In addition, provisions will be made to incorporate a removable vent riser and jet deflector in the drywell.
The original 4T instrumentation system has been expanded to allow an indepth study of the steam condensation phenomena in the vent and at the pool boundary.
New measurement techniques will be employed in these tests to enable accurate determination of vent air content.
These tests, which are still in the planning stages, are scheduled for completion in the second quarter of 1980 with reports to be issued in the fourth quarter of 1980.
The tests are considered to be confirmatory by the Mark II owners.
They will provide information to establish the conset vative nature of the current lead plant steam loads..
The Mark II owners stated that the thrust of these tests was to study, condensation oscillation loads at the pool boundary.
No attention is to be given, in these tests, to the further study of lateral loads on the vents.
2.
Task A. 11 Multivent Subscale Testin Representatives of the Mar k II Owners Group and Creare, Inc. reported on the pr eliminary results of Phase I of the 1/10 scale multivent tests.
These tests consist of steam tests conducted with 1, 3 and 7 vents.
These tests were directed at multivent phasing investigations.
A presentation was made of the types of phasing data and studies of the 3 vent tests that are being conducted.
Preliminary results from these tests confirm that the use of a lead plant multivent multiplier of one is conservative.
In addition, results of the tests show a reduction in the multivent multiplier with increasing number of vents.
Single vents tests conducted by Creare since November 1978 wer e also discussed.
These tests were conducted to address questions relative to the repeatabi lity of earlier single vent tests under conditions of varying vent air content.
Improved repeatability was observed in these most recent tests.