Flow and heat transfer analysis of lead–bismuth eutectic flowing in a tube under rolling conditions

Liu, Zhipeng; Huang, Daishun; Wang, Chenglong; Yu, Qifan; Zhang, Dalin; Tian, Wenxi; Qiu, Suizheng; Su, G.H.

doi:10.1016/j.nucengdes.2021.111373

Cited by 13 publications

(2 citation statements)

References 31 publications

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“…e wall temperature is the highest, and the center temperature is the lowest. Compared to the temperature distribution of LBE in the circular channel [1], the triangular-like subchannel structure has a squeezing effect on the flow field distribution, which in turn causes the temperature distribution in the core fluid domain to be distorted.…”

Section: Temperature Analysismentioning

confidence: 99%

“…Liquid lead-bismuth eutectic alloy [1][2][3] was considered to be used for available as a coolant in the Generation IV leadcooled fast reactor (LFR) due to its good neutronic properties, low melting point, and other characteristics. Many scholars at home and abroad have conducted experimental and numerical studies on the heat transfer performance of LBE.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Flow and Heat Transfer Characteristics and Erosion Law of Particulate in LBE on the Subchannel

Zhu

2022

Science and Technology of Nuclear Installations

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A triangle subchannel model was established to study the flow and heat transfer characteristics of lead-bismuth eutectic (LBE) alloy and the erosion rate of the core channel by the particulate in LBE. Under different inlet velocities, particle types, particle diameters, and particle concentrations, the erosion law of the channel wall in LEB was investigated by using a discrete phase model (DPM). The results of this study showed that with the increase of inlet velocity, the outlet temperature of the LEB decreases and the heat transfer capacity was strengthened. The increase of inlet velocity will lead to the increase of erosion rate on the wall, and the change is exponential. The erosion rate of particulate in the low concentration is small but cannot be ignored; with increasing concentration of particulates, the erosion of the wall by particulates becomes serious. The effect of particulate density on the wall erosion rate can be ignored. The effect of changing the particle size on the erosion rate is more significant when the particle size is small, and at the same time, the erosion rate of the particles on the wall increases with the increase of the particle size.

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Section: Temperature Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the Flow and Heat Transfer Characteristics and Erosion Law of Particulate in LBE on the Subchannel

Zhu

2022

Science and Technology of Nuclear Installations

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Direct Contact Condensation Characteristics of Steam Injection into Cold-Water Pipe Under Rolling Condition

Wang

Duan

et al. 2023

Springer Proceedings in Physics

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Direct contact condensation (DCC) is widely occurred in nuclear power systems and leads to undesired phenomena such as condensation-induced water hammer. For ocean nuclear power ships, DCC is inevitable in the passive heat removal system and influenced by sea conditions. In this paper, the characteristics of DCC under rolling conditions are analyzed. The numerical model of DCC is established based on computational fluid dynamics approach. The VOF model, SST k–ω turbulence model and the additional inertia force model are incorporated to describe the liquid-gas two-phase flow under the rolling motion. The condensation model based on surface renewal theory (SRT) is used to simulate steam-water DCC phenomenon. The simulation results are compared with the experimental data and show reasonable agreement. The effects of rolling motion on DCC for steam injection into a horizontal pipe filled with cold water are numerically investigated. The results show that the additional inertial forces and the average condensation rate increase with the increase of the rolling angle and frequency. The reverse flow of the seawater induced by rolling motion leads to the accumulation of the steam at the lower part of the pipe, resulting in a large pressure pulse. With the increase of rolling angle and frequency, the pressure pulse induced by DCC increases.

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Analysis of flow-induced vibration of wire-wrapped fuel assemblies under the liquid metal axial flow in the Gen-IV nuclear reactor

Guo

Zhang

et al. 2023

Annals of Nuclear Energy

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Flow and heat transfer analysis of lead–bismuth eutectic flowing in a tube under rolling conditions

Cited by 13 publications

References 31 publications

Investigation of the Flow and Heat Transfer Characteristics and Erosion Law of Particulate in LBE on the Subchannel

Investigation of the Flow and Heat Transfer Characteristics and Erosion Law of Particulate in LBE on the Subchannel

Direct Contact Condensation Characteristics of Steam Injection into Cold-Water Pipe Under Rolling Condition

Analysis of flow-induced vibration of wire-wrapped fuel assemblies under the liquid metal axial flow in the Gen-IV nuclear reactor

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