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IRSN, Institut de radioprotection et de sûreté nucléaire

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Enhancing Nuclear Safety


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COLOSS Final Extended Report, Part1; Experimental and analytical activities Main outcomes from the project.

B. Adroguer, F. Bertrand, P. Chatelard, J.P. Van Dorsselaere, N. Cocuaud, C. Duriez1, L. Bellenfant2, A. Miassoedov, M. Steinbrück, J. Stuckert, G. Schanz, W. Krauss, W. Hering, C. Homann3, D. Bottomley, D. Knoche4, V. Vrtilkova5, L. Belovsky6, K. Müller7, Z. Hózer, L. Matus, I. Nagy, Gy. Gyenes, A. Pintér, P. Windberg8, G. Bandini, S. Ederli9, J. Birchley10, T. v. Berlepsch, I. Kleinhietpass11, M. Buck12, J. A. Fernandez Benitez, F. Martin-Fuertes13, E. Virtanen14, S. Marguet15, G. Azarian, A. Caillaux16, H. Plank17, M. Veshchunov, A. Berdyshev, A. Boldyrev18, V. Kobzar, A. Volchek, Y. Zvonarev19, A. Goryachev, V. Smirnov20.

DPAM/Dir 2004-0279, SAM-COLOSSP079, April 2003

Summary

The COLOSS project is a 3-year shared-cost action which started in February 2000. The project is concerned with the consequences that core degradation, occurring under Severe Accident conditions, may have on H2 production, melt generation and the source term. Unresolved in-vessel risk-relevant issues are studied, through a large number of experiments such as a) UO2 and MOX dissolution by molten zircaloy and burn-up effects, b) simultaneous dissolution of UO2 and ZrO2 in rod geometry, c) oxidation of U-O-Zr.

(1) IRSN-DPAM
(2) IRSN-DSR
(3) FZK
(4) JRC/ITU
(5) ÚJP-PRAHA
(6) ALIAS CZ
(7) JRC/IE
(8) AEKI
(9) ENEA
(10) PSI
(11) RUB
(12) IKE
(13) UPM
(14) LTKK
(15) EDF
(16) Framatome ANP SAS
(17) Framatome ANP GmbH
(18) IBRAE
(19) NSI/RRC-KI
(20) RIAR

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