Abstract
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.)
| Original language | English |
|---|---|
| Pages (from-to) | 449-450 |
| Journal | Transactions of the American Nuclear Society |
| Volume | 103 |
| Publication status | Published - 2010 |
| MoE publication type | A4 Article in a conference publication |