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Corrosion/Precipitation in Non-Isothermal Lead Alloy Coolant Systems

[+] Author Affiliations
Taide Tan, Yitung Chen, Huajun Chen, Hsuan-Tsung Hsieh

University of Nevada at Las Vegas

Paper No. IMECE2006-14917, pp. 119-128; 10 pages
doi:10.1115/IMECE2006-14917
From:
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Energy Conversion and Resources
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4783-7 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME

abstract

A kinetic model was developed to investigate the corrosion and precipitation in non-isothermal lead alloy coolant systems. By considering a turbulent core region and a laminar sub-layer, analytical solutions of the mass transfer equations in both regions were obtained. The analytical expressions of both the local corrosion/ precipitation rate and the bulk concentration were obtained from the present kinetic model. Numerical models were also developed for simulating the corrosion and precipitation in non-isothermal Lead alloy pipe/loop systems and the results were compared with the analytical solutions. By applying this model to a test loop named "DELTA" set up at the Los Alamos National Laboratory the present study illustrates systematically dependence of the corrosion/precipitation rate and bulk concentration on the axial temperature profile and other hydraulic factors. The results were compared with the available experimental data.

Copyright © 2006 by ASME

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