Computational study of Fe3O4 adsorption behaviour on the secondary side of the heat exchange tube in the steam generator

Based on the scaling problem outer surface of steam generator tube in secondary circuit condition pressurized water reactor, molecular dynamic was used to calculate adsorption characteristics Fe3O4. The trajectory, mean squared displacement, radial distribution function and energy Fe3O4 agglomeration deposition process were further analyzed through variation temperature concentration. When between 510 K 530 K, diffusion coefficient Fe2+ OH? could reach minimum value 2.255 × 10-5 cm2/s 2.638 cm2/s, respectively. During concentration, size agglomerate particles increased continuously, H2O can 3.78 cm2/s. with positive charges effectively OH?, forming tetrahedral octahedral structures crystal. At this time, a small number adsorbed at interface matrix, double electrical layer affecting agglomerated Apart from this, high is beneficial inhibit part. Likewise, low concentration dissolved also lead weaker side generator.