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Lessons learnt concerning iodine chemistry ISP-41, ISP-46


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B. Clément, C. Marchand, H.J. Allelein, G. Weber,
Eurosafe, Paris, 25-26 novembre 2003,
Rapport IRSN-DSR/8

Type de document > *Rapport/contribution à GT (papier ou CD-Rom), *Congrès/colloque

Mots clés > sûreté, enceinte réacteur, iode

Unité de recherche > IRSN/DSR/SAGR

Auteurs > CLEMENT Bernard

Date de publication > 17/12/2003

Résumé

Two International Standard Problems (ISP) have been successfully concluded in 2003. The ISP-41, performed in three steps, including comparison with experiments and parametric calculations, was purely dealing with iodine chemistry in the containment. The integral ISP-46 on the Phebus FPT-1 experiment included one part devoted to the same issue. The main outcomes from both exercises are first summarized. Then the lessons learnt on modelling and integral aspects as well as the implications for plant studies are given. Some weaknesses are still remaining in the iodine chemistry models and codes. They have been identified and improvement is expected from the results of newly launched experimental programmes and from modelling effort.