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Hydrodynamics of the effectiveness of the AP-CITROX decontamination technology |
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| Authors: | K Varga Z Németh J Somlai I Varga R Szánthó J Borszéki P Halmos J Schunk P Tilky |
| Institution: | (1) Department of Radiochemistry, University of Veszprém, P.O. Box 158, H-8201 Veszprém, Hungary;(2) Department of Analytical Chemistry, University of Veszprém, P.O. Box 158, H-8201 Veszprém, Hungary;(3) Paks NPP Co. Ltd, P.O. Box: 71, H-7031 Paks, Hungary |
| Abstract: | During the optimization of the AP-CITROX decontamination technology the effect of the different flow rates of the decontamination solutions on the radioactive contamination and corrosion state of stainless steel tube samples originating from steam generators of Paks NPP were studied by a pilot-plant circulation system. The results have proved that a significant increase (up to 2.89 m/s) in the flow rate of the decontamination solution in the 1-5 steps is highly recommended and in order to improve the passivity of the surfaces it should be kept as low as possible (0.5 m/s) during the passivation. |
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