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Natural Circulation and Linear Stability Analysis for Liquid-Metal Reactors with the Effect of Fluid Axial Conduction Public Deposited

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Abstract
  • The effect of fluid axial thermal conduction on one-dimensional liquid metal natural circulation and its linear stability was performed through nondimensional analysis, steady-state assessment, and linear perturbation evaluation. The Nyquist criterion and a root-search method were employed to find the linear stability boundary of both forward and backward circulations. The study provided a relatively complete analysis method for one-dimensional natural circulation problems with the consideration of fluid axial heat conduction. The results suggest that fluid axial heat conduction in a natural circulation loop should be considered only when the modified Peclet number is similar to 1 or less, which is significantly smaller than the practical value of a lead liquid metal cooled reactor.
  • This is the publisher’s final pdf. The published article is copyrighted by American Nuclear Society and can be found at: http://www.new.ans.org/pubs/journals/nt/
  • Keywords: Fluid axial heat conduction, Linear perturbation analysis, Liquid metal reactors
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  • Sabharwall, P., Yoo, Y., Wu, Q., & Sienicki, J. (2012). Natural Circulation and linear Stability Analysis for Liquid-Metal Reactors with the Effect of Fluid Axial Conduction. Nuclear Technology, 178(3), 298-317.
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  • 178
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  • 3
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  • This work was supported by Argonne National Laboratory under the U.S. NERI program.
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