Agenda 1998

4^th International QUENCH Workshop

Forschungszentrum Karlsruhe
October 6-8, 1998

Meeting Location:

Fortbildungszentrum für Technik und Umwelt (FTU)

QUENCH Workshop: AULA (Ground floor)

8.45 h

REGISTRATION

9.00 h

Welcome and introduction

H.-H. Hennies, FZK-Board

EXPERIMENTS (Chairman: L. Sepold)

9.10 h

Hydrogen source term during flooding of a degraded core - The QUENCH Programme at FZK

A. Miassoedov, FZK

9.30 h

Presentation of the new MADRAGUE facility

A. Arbousset, CEA-IPSN

9.50 h

Quench features of the BTF105A Experiment: Preliminary data and modelling

V.I. Arimescu, AECL

10.10 h

Surface crack formation of oxidized Zircaloy tubes during cool-down

L. Steinbock, FZK

10.30 h

BREAK

11.00 h

Hydrogen absorption of zirconium alloys at high temperatures. New test results

F. Rivalin, FZK/EdF

11.20 h

Kinetics of H₂ absorption in Zry-4

L. Matus, KFKI

11.40 h

Zircaloy cladding tube behavior during quenching

A. Miassoedov, FZK

12.00 h

DISCUSSION

12.30 h

LUNCH

QUENCH FACILITY (Chairman: A. Miassoedov)

13.20 h

Experimental results of the test QUENCH-01

L. Sepold, FZK

13.40 h

Hydrogen release and absorption during the bundle test QUENCH-01

M. Steinbrück, FZK

14.00 h

Post-test conditions of test bundle QUENCH-01 (Video)

L. Sepold, FZK

14.10 h

Metallographic post-test examination of the QUENCH-01 bundle

G. Schanz, FZK

14.30 h

IRS calculational support for QUENCH-01

Chr. Homann, FZK

14.50 h

BREAK

15.10 h

First results of test QUENCH-02

L. Sepold, FZK

15.30 h

Hydrogen behaviour during the test QUENCH-02

M. Steinbrück, FZK

15.50 h

Post-test appearance of test bundle QUENCH-02

L. Sepold, FZK

16.10 h

IRS calculational support for QUENCH-02

Chr. Homann, FZK

MODELING AND CODE SYSTEMS (Chairman: W. Hering)

9.00 h

Recommended improvements in LWR material property models

C. Allison, ISS

9.20 h

UK Bundle quench modelling: Status October 1998

R. Hiles, AEAT

9.40 h

Post-test calculations for the QUENCH-01 experiment with ICARE2 and SCDAP/RELAP5 codes

G. Bandini, ENEA

10.00 h

Reactor safety investigations using RELAP5 and SCDAP/RELAP5

V. H. Sanchez, FZK

10.20 h

Modelling of quench phenomena: Development of the SVECHA/QUENCH (SQ) code

M. Veshchunov, IBRAE

10.50 h

BREAK

11.10 h

Development of the oxidized fuel cladding failure model of the SVECHA/QUENCH (SQ) code

A. Boldyrev, IBRAE (pres. by M. Veshchunov)

11.30 h

Development of the channel gas kinetic and coolant heating models of the SVECHA/QUENCH (SQ) code

A. Palagin, IBRAE

12.00 h

Development of the SVECHA/QUENCH (SQ) code model of the hydrogen absorption by zirconium alloys in steam/hydrogen mixtures

A. Berdyshev, IBRAE

12.30 h

Current status of the ICARE/CATHARE code development

S. Melis, CEA-IPSN

12.50 h

LUNCH

9.00 h

The oxidation of Zry-4 during temperature transients. Application to the single rod quench experiments

E. A. Garcia, ARN

9.20 h

Modelling the high temperature reflooding for the BWR recriticality calculation in the RECRIT code

J. Miettinen, VTT-Energy

AIR INGRESS AND OTHER TOPICS (Chairman: T. Haste)

9.40 h

Overview of air ingress issues

T. J. Haste, JRC

9.50 h

JRC Ispra calculational support for air ingress experiments: Status October 1998

T. J. Haste, JRC

10.10 h

Zircaloy/air oxidation kinetics: Current experiments towards future demands

W. Krauss, FZK

10.30 h

BREAK

10.50 h

DRESSMAN air-ingess experiments

R. Schneider, TU Dresden

11.10 h

PWR type 9-rod bundle air ingress test

L. Maroti, KFKI

11.30 h

ZrO₂ dissolution by molten Zircaloy

J. Stuckert, FZK

11.50 h

Some results of irradiated UO₂ dissolution by Zircaloy from the Corium Interactions & Thermochemistry Project and its relevance to severe accident tests (Phebus FP)

D. Bottomley, ITU

12.10 h

DISCUSSION

12.30 h

LUNCH

13.30 h

5th FWP of the CEC - Core degradation aspects

B. Adroguer, CEA-IPSN

13.50 h

JRC view on continuation of COBE and OPSA

T. Haste, I. Shepherd, JRC

14.00 h

General discussion on 5th Framework ideas

14.50 h

CLOSURE OF THE WORKSHOP