Kinetic Mechanism Study of Lead-Bismuth Alloy Solidification in Lead-Water Interaction

Zhang Lin; Liu Dalin; Deng Chang; Liu Xiaojing

doi:10.13832/j.jnpe.2023.S1.0051

Volume 44 Issue S1

Jun. 2023

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Zhang Lin, Liu Dalin, Deng Chang, Liu Xiaojing. Kinetic Mechanism Study of Lead-Bismuth Alloy Solidification in Lead-Water Interaction[J]. Nuclear Power Engineering, 2023, 44(S1): 51-56. doi: 10.13832/j.jnpe.2023.S1.0051

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Zhang Lin, Liu Dalin, Deng Chang, Liu Xiaojing. Kinetic Mechanism Study of Lead-Bismuth Alloy Solidification in Lead-Water Interaction[J]. Nuclear Power Engineering, 2023, 44(S1): 51-56. doi: 10.13832/j.jnpe.2023.S1.0051

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Kinetic Mechanism Study of Lead-Bismuth Alloy Solidification in Lead-Water Interaction

doi: 10.13832/j.jnpe.2023.S1.0051

School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

Received Date: 2023-02-21
Rev Recd Date: 2023-03-27
Publish Date: 2023-06-15

Abstract

Abstract

To obtain the kinetic mechanism of lead-bismuth alloy solidification during the lead-water interaction and understand the microscopic dendrite growth process, the average flow velocity equation of lead-bismuth alloy between dendrites was developed by analyzing the natural convection of lead-bismuth melt and its influence on the solidification front. In addition, the dendrite growth process was simulated by using the phase field method. The results showed that the fast growth zone of dendrites was markedly tilted toward the incoming flow direction under the joint action of flow fields in two directions. This work can provide kinetic mechanism analysis for lead-bismuth alloy solidification, and provide the theoretical basis for the safe operation of lead-based reactors.
- Lead water interaction,
- Lead-bismuth solidification,
- Dendrite growth,
- Numerical simulation,
- Steam Generator Tube Rupture (SGTR) accident

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References(17)

References

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