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Research on Corrosion and Precipitation Behaviors in LBE Systems

[+] Author Affiliations
Li Tian, Fenglei Nui

North China Electric Power University, Beijing, China

Sheng Gao, Yican Wu

Chinese Academy of Sciences, Hefei, Anhui, China

Paper No. ICONE21-15653, pp. V006T16A016; 5 pages
doi:10.1115/ICONE21-15653
From:
  • 2013 21st International Conference on Nuclear Engineering
  • Volume 6: Beyond Design Basis Events; Student Paper Competition
  • Chengdu, China, July 29–August 2, 2013
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5583-6
  • Copyright © 2013 by ASME

abstract

Liquid metal, mainly lead and lead-bismuth eutectic (LBE) has been widely applied in the advanced nuclear reactors and accelerator-driven transmutation (ADS) systems for a series of excellent physical and chemical properties, but LBE is very corrosive to the structural materials such as iron and stainless steel in medium and high temperature circumstance which limits its development seriously. Research works of anticorrosion for LBE has been carried out all over the world. In this paper, A kinetic model for corrosion and corrosion products precipitation in non-isothermal LBE circuits is developed to predict corrosion and precipitation behaviors, the mass transfer convection-diffusion equation is established and the corrosion/corrosion products precipitation rate along the circuit is predicted considering the effects of temperature profile of the entire circuit which are different from local parameters, the overall estimate of the corrosion/precipitation situation is obtained, at the end, the solid-phase oxygen control technique is discussed, a program developed for dissolution rate of the PbO particles in the mass exchanger is proposed.

Copyright © 2013 by ASME

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