Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 449-450 |
| Journal | Transactions of the American Nuclear Society |
| Volume | 103 |
| Publication status | Published - 2010 |
| MoE publication type | B3 Non-refereed article in conference proceedings |
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The Effect of Chemical Reactions on Primary Circuit Surfaces on Iodine. / Kalilainen, Jarmo; Kärkelä, Teemu; Zilliacus, Riitta; Auvinen, Ari.
In: Transactions of the American Nuclear Society, Vol. 103, 2010, p. 449-450.Research output: Contribution to journal › Article in a proceedings journal › Scientific
TY - JOUR
T1 - The Effect of Chemical Reactions on Primary Circuit Surfaces on Iodine
AU - Kalilainen, Jarmo
AU - Kärkelä, Teemu
AU - Zilliacus, Riitta
AU - Auvinen, Ari
PY - 2010
Y1 - 2010
N2 - The aim of this work was to investigate the transport of fission products inside the primary circuit in severe accident conditions. An unexpected result from Phebus FTP-3 experiment was that only a very small fraction of iodine was transported as aerosol in the circuit. Approximately 85% of the iodine released in the containment was in gaseous form. None of the calculations made in advance had predicted such high gaseous iodine fraction. This indicated that integral codes used for pre-calculations did not include all relevant phenomena such as reactions on primary circuit surfaces. In these experiments, cesium iodide was used as precursor material for iodine compounds. Also, effects of molybdenum and boron on transport of iodine were investigated. (1 refs.)
AB - The aim of this work was to investigate the transport of fission products inside the primary circuit in severe accident conditions. An unexpected result from Phebus FTP-3 experiment was that only a very small fraction of iodine was transported as aerosol in the circuit. Approximately 85% of the iodine released in the containment was in gaseous form. None of the calculations made in advance had predicted such high gaseous iodine fraction. This indicated that integral codes used for pre-calculations did not include all relevant phenomena such as reactions on primary circuit surfaces. In these experiments, cesium iodide was used as precursor material for iodine compounds. Also, effects of molybdenum and boron on transport of iodine were investigated. (1 refs.)
M3 - Article in a proceedings journal
VL - 103
SP - 449
EP - 450
JO - Transactions of the American Nuclear Society
JF - Transactions of the American Nuclear Society
SN - 0003-018X
ER -