ML20058J626
| ML20058J626 | |
| Person / Time | |
|---|---|
| Issue date: | 10/18/1989 |
| From: | Asmolov V, Bolshov L, Speis T NRC - U.S./U.S.S.R. JOINT COORDINATING COMMITTEE FOR CIVILI |
| To: | NRC - U.S./U.S.S.R. JOINT COORDINATING COMMITTEE FOR CIVILI |
| References | |
| JCCCNRS-WG-6, NUDOCS 9012020134 | |
| Download: ML20058J626 (6) | |
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Memorandum of Meeting or! Working Group 6 Leningrad 17-18/10/89-
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t Aooording with agenda of the meeting (See Apendix 1) f i
i N.N.Ponomarev-Stepnot reviewod a development or JCCCNR' activity in i
his introductive talk and e nhasized the nossocity or coming to joint-
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investigations and direct contact between the USSR and US organizations.
Soviet participants of the meeting _ (See Apendix 2) informed US side about the program and results of their studies inside 4th Unit of Chernobyl NPP. An agenda of 50th Anniversary of Fission Conference-Sesston specially devoted to Chernobyl researche is' also supplied in-Apendix 3. Agenda of upcoming JCCCNR October 30. meeting in; Washington was also discussed.
The main topics covered by USSR and US participants included discussions on protocol item 6.2b (oore-concrete interactions); in addition the USSR participants discussed and outlined the program of.
i the newly formed Institute of Nuclear Safety under the auspices of the USSR Academy of Sciences as well-as the overall program headed by Kurchatov Institute and covering all aspects of safety, including Severe accidents.
The USSR presentations on item 6.2b ' included: work in the' analytical methodology which they are presently developing to evaluate physics and chemistry of oorium-ooncrete interaction.
phenomena. The focus of their efforts is the oode "RASPLAV" which has also been implemented on a Personal Comuter. It's capability was -
o demonstrated during the _ meeting. This demonstration used the analysis of the SURC4 experiment which the Soviets-are presently evaluating / predicting. In addition the IESR participants described their work with the models, included in the US developed code CORCON, 1
l-which they have also put to PC.
Radium Institute presented report on the planned activities in experemental study of core concrete, core-water and core-structural o
materials interaction. Such experiments are ready in Radiochemical gg20R B SR PDR a.
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Laboratory of Radium Institute -in Gatchina. The. aim of such experiments is to recieve samles and to. study:the history of* their l
formation.
- Another. Radium Institute presentation dealt with the advantages of a special X-ray analysis devioe, which can be used for' analysis of
.I highly radioactive samles (up to 10 Ci per samle)
The USA presentation on item 6.2b oovered suoi issues 'as l
Accident Soenarios leading to corium-concrete interaction (CCI),
consequenoes of OCIs and other questions associated with the capability of the present oodes especially 00RCON 1o predict CCI related phenomena and. Issues.
The major conclusions are that both sides agreed that the information exchange.was very usefull and beneffof al.
The major recomendations were as followes.-
A. Corium-Concrete.
Based on the discussions and exchange of views it was recommended I
that a technical Seminar be held in spring of 1990 in the U.S. and be focused on:
a) lessons learned from Soviet evaluation of SURC-4 and its comarison with related of CSNI evaluation; b) insights from results of MACE program; o) the debris coolability conclusions from theorettoal'and experimental work performed so far (world-wide) including latest MACE tests.
Future program on CCI to be decided based on conclusions to be drown from subject seminar.
B. Both sides agreed about high priority of issues of PRA mentioned in Protocol Item 6.2a. American participants confirmed that second version of NUREG-1150 and NRC contractor's reports will be transfered-to the Soviet-side during 30 October meeting this year.
I Soviet side confirmed their interest in getting oo guter code F LAP 5/
nbd.2 consistent with previous discussions.
C. High level priority was also confirmed for generation and combustion of hydrogen and carbon monoxide under Severe Accident Conditions. Prioritization of Soviet proposals on follow-up hydrogen related work in the field would be done during Washington meeting on 30 October this year.
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.... g, D. Other topics in Protocol are also of interest but or-lower priority at this time than 'above mentioned. Nevertheless the Soviet side.is preparing a new proposal for Washington meeting on large -
l scale iodine experiment in the USSR.
Froin USSR side 4l j
F.mm U.S. side Themis P.Speis A.Bolshov h,
J f
.G.Asmolov.
October 18, 1980 Leningrad I
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App 0DdiX i.
's A 0 E 5 D A' i
of af ternoon session' of: JCCCER: Working Group 6 Leningrad. October $7-88.'9989
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October 97-th.
l 34.30 -14.45 3.5.Ponomarev-Stepnoy-Information an JCCCBR activity and international safety studies.
c 34.40-45.05 V.S.Assolov Soviet nuclear safety-program and severe. accident analysis activity.
15.05-15.Cb L. A.' Bo l sho v -
Fundamental nuclear safety-studies in the'UB8R. Academy of Sciences.
l t
L 15.25-15.45 R.Y.ArutJunjan Core-concrete Interaction Analysis.
15.45-16.00 V.F.Stranhov I
Development of computer codes for core-concrete anteraction analysis and some applications.
l 16.00-16.90 A.A.Ranski-Korsakov o
Gamme-and X-Ray spectroscopy for highly radioactive samples of core meltdown and core-concrete-inter-
-action.
$6.30-16.20 B.Ta.Galkin EEperimental studies of GFnamics of fission products release in core-con-crete interaction.
16.25-17.00 Coffee break 17.00-18.00 Presentations of American participants.
October $8-th.
9.30-13.00 Discussion.
Preparation of documents.
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-j Appendix 2.-
List of participants l
From US side a
T. Spies NRC R.A.Bari swL From USSR side N.N.Ponomarev-Stepnoi.-
IAE 4
V.G.Asmolov-IAE L.A.Bolshov NSI R.V.Arutjunjan
. NSI
-I V.F.Strizhov NSI A.A.Rinski-Korsakov-RI B.Ya.Galkin-RI-L.A.Pleskschevski RI e
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A' kppendix8.
=
SECTION PROGRAN a
i
- NUCLEAR BAFETY AND NUCLEAR POWER i
L PLANT ACCIDENTS 1
Thursday,; October 1D Bession 5.1 Chairman - 8.T.5elFaev 3
9.00-9.30 A.A.Borovoy-(I.T;Kurchatov Inst of At;. Energy) -
Release of fission products and transuranic 1
elements due to the Chernoby1'tooident.-
9.30-10.00
'O.I.Ardikuts, R.V.Arutrunian. L.A'.Bolshov et al
' i (Nucl. - Safety Inst Aond. of. Sci. USSR J)
The processes 'of vessel'and _ oore debnis melting under severe sooidentiocoditions ' '
theoretical and calculational analysis.
10.00-10.30
-A.A.Rimski-Korsakov.-(V.G.Ehlopin' Bad. Inst )'
Use of relative fission product' release l
to estimate the fuel temperature;after i
.Chernobyl aooident,.
10.30-11.00 B.T.Belyaev,-A.A.Borovor. Yu.L.Dobernin (I.T.Kurchatov Inst of At. Enersy)-
Esbination of scale and character:of radiomotive contamination of territory after breakdown at Chernobri NPP.
11.00-11.30 Coffee break-Session 5.2 Chairman: A.A.Rimski-Korsakov 11.30-12.00.
N.H.Basir. S.T.Beiraev, A.d.Borovor.-
B.S.O roroinik et. al.
Li
_1 (I.V..(uroutov Inst, of At. Energy )'
[
H Heat measurement investigations:of the self-cooling process-of the Chernobyl damaged reactor.
12.00-12.30 V.G. Volkov,A.G.Yolkovitch,LI.N.Kambulov,_
L. I.Urutakoov et. = al.
(I.V.Kurchasov Inst.,of At. Energy )
Application of Benote Badiological Detection'in Laboratorr-applied analysis-i at the C*ernobri Nuclear Power 8tation.
l 12.3D-13.00
'O.A.3cantov 4.A.Borovor,Yu T. Dubasov, V.V,woonosov iI.T.Kurchatov: Inst. of At.-Energy. Radium Inst.)-
On forms of fuel exhaust = at Chernobrl-APP' breakdown.
..