Agenda 1997

3^th International QUENCH Workshop Forschungszentrum Karlsruhe December 2-4, 1997

Meeting Location:	Fortbildungszentrum für Technik und Umwelt (FTU)
	QUENCH Workshop: Room 236 (First floor)

Tuesday, December 2, 1997

EXPERIMENTS (Chairman: P. Hofmann)

9.00 h	Welcome and introduction	G. Heusener, FZK
9.10 h	CEC position on the QUENCH Program	A. Zurita, CEC
9.20 h	Essential results of the terminated CORA Program	S. Hagen, FZK
9.50 h	Experiments on the quench behavior of LWR fuel rod segments	P. Hofmann, FZK
10.10 h	Determination of the crack pattern of quenched Zircaloy cladding tubes	L. Steinbock, FZK
10.30 h	Oxidation and quenching experiments on high-burnup fuel cladding under simulated LOCA conditions	R. Cauvin, CEA
10.50 h	BREAK
11.10 h	Investigations on H₂ absorption of Zircaloy-4 at high temperatures	M. Steinbrück, FZK
11.40 h	Kinetics of H₂ absorption in Zr 1% Nb alloy	L. Matus, KFKI
12.00 h	Investigations of H₂ uptake by Zr alloys under accident conditions in CANDU reactors	A.J. White, AECL
12.30 h	LUNCH

QUENCH FACILITY (Chairman: P. Hofmann)

13.10 h	UK design and scaling studies for the QUENCH Facility	R. Hiles, AEAT
13.40 h	Analytical activities for test preparation	Ch. Homann, FZK
14.05 h	Results of thermocouple pre-tests in argon atmosphere	L. Sepold, FZK
14.25 h	Assembly and putting into operation of the QUENCH Facility; Conduct of the commissioning tests	L. Schmid, FZK
14.50 h	BREAK
15.10 h	Evaluation of the test data of the commissioning tests in the QUENCH Facility	L. Sepold; FZK
15.30 h	H₂ measurements during the commissioning tests	M. Steinbrück, FZK
15.50 h	H₂ mixing and transport test in the QUENCH Facility	A. Miassoedov, FZK
16.10 h	Commissioning tests; comparison between calculations and experimental results	Ch. Homann, FZK
16.30 h	Post-test appearance of the commissioning test bundle	L. Sepold, FZK
16.50 h	VVER-440 type 7-rod bundle quench test	L. Maróti, KFKI
17.10 h	VVER-440 fuel rod behavior under LOCA conditions	A. Goryachev, RIAR

Wednesday, December 3, 1997

MODELING ACTIVITIES (Chairman: T. Haste)

10.00 h	SVECHA/QUENCH code modeling of H₂ absorption by Zr cladding during oxidation in steam	M. Veshchunov, IBRAE
10.40 h	Mechanistic model to evaluate H₂ generation during quenching	F. Oriolo, Pisa
11.00 h	BREAK
11.20 h	Modeling of heat and H₂ production from Zircaloy oxidation in CANDU fuel channel experiments under accident conditions	D.B. Sanderson, AECL
11.50 h	SVECHA/QUENCH code modeling of cladding mechanical deformation and crack formation during quenching	A. Boldyrev, IBRAE
12.20 h	Oxidation stresses and creep in Zircaloy tubes at high temperatures	H. Steiner, FZK
12.40 h	LUNCH

CODE SYSTEMS (Chairman: W. Hering)

13.30 h	SVECHA/QUENCH code verification against FZK single rod quench tests	A. Palagin, IBRAE
14.10 h	KESS calculations for the small-scale and bundle quench experiments	K. Müller, IKE
14.30 h	Assessment of the improved RELAP 5/mod3 transition boiling model using various reflood experiments	V. Sanchez Espinoza, FZK
14.50 h	EPR reflood calculations using the improved transition boiling model	W. Hering, FZK
15.10 h	BREAK
15.30 h	Modeling of reflooding thermohydraulics for BWR recriticality analysis	J. Miettinen, VTT
16.00 h	The effect of oxide behavior on the calculated H₂ generation for CORA-13 and PHEBUS FPTO experiments	Y. Chen, USNRC
16.20 h	Application of ACQ method to analysis of Zr oxidation and H₂ generation processes in integral SFD tests	I. Zvonarev, RRC-KI
16.40 h	Comparisons between MAAP, MELCOR and SCDAP/RELAP5 during reflood	C. Allison, ISS
17.10 h	Individual discussions

Thursday, December 4, 1997

OTHER TOPICS (Chairman: I. Shepherd)

9.00 h	Preliminary PIE results of the lower corium pool of the PHEBUS FPT1 test bundle	D. Bottomley, ITU
9.20 h	Recent Canadian studies of high temperature UO₂ and ZrO₂ dissolution in molten cladding	P. Hayward, AECL
9.50 h	Modeling of UO₂ and ZrO₂ dissolution processes	M. Veshchunov, IBRAE
10.20 h	Canadian studies on UO₂ oxidation	A. White, AECL
10.40 h	BREAK
11.00 h	Air ingress calculations with MELCOR	R. Cole, Sandia
11.20 h	Status of knowledge and experimental results on Zircaloy/air high temperature reaction	G. Schanz, FZK
11.50 h	Calibration tests in the DRESSMAN Facility	R. Schneider, TUD
12.10 h	ICARE Calculation for air ingress tests in the CODEX and DRESSMAN Facilities	T. Haste, AEAT
12.30 h	French JERICHO calculations	B. Adroguer, CEA
12.40 h	General discussion; conclusions; next workshop
13.00 h	LUNCH

Following the closure of the QUENCH Workshop:

CEC PROGRESS MEETINGS (for partners of the project only)

14.00 h

Oxidation Phenomena in Severe Accidents (OPSA)

Third Progress Meeting (separate agenda distributed by I. Shepherd, JRC)

Friday, December 5, 1997

CEC PROGRESS MEETING (for partners of the project only)

9.00 h

Investigation of Core Degradation (COBE)

Fourth Progress Meeting (separate agenda distributed by I. Shepherd, JRC)

Before the QUENCH Workshop on December 1, 1997, a SR5CAP Meeting will take place at the same location as the workshop