Simulation and Experimental Study on Separation Characteristics of New Start-up Separator

Zhang Ziwei; Chen Chen; Meng Zhaoming; Cao An; Dong Chuanchang

doi:10.13832/j.jnpe.2024.060021

Volume 46 Issue 3

Jun. 2025

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Zhang Ziwei, Chen Chen, Meng Zhaoming, Cao An, Dong Chuanchang. Simulation and Experimental Study on Separation Characteristics of New Start-up Separator[J]. Nuclear Power Engineering, 2025, 46(3): 202-212. doi: 10.13832/j.jnpe.2024.060021

Citation:

Zhang Ziwei, Chen Chen, Meng Zhaoming, Cao An, Dong Chuanchang. Simulation and Experimental Study on Separation Characteristics of New Start-up Separator[J]. Nuclear Power Engineering, 2025, 46(3): 202-212. doi: 10.13832/j.jnpe.2024.060021

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Simulation and Experimental Study on Separation Characteristics of New Start-up Separator

doi: 10.13832/j.jnpe.2024.060021

Zhang Ziwei^{1, 2
,},
Chen Chen^{1, 2},
Meng Zhaoming^{1, 2
,
,},
Cao An^{1, 2},
Dong Chuanchang^{1, 2}

1.
College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China
2.
Heilongjiang Provincial Key Laboratory of Nuclear Power System & Equipment, Harbin Engineering University, Harbin, 150001, China

Received Date: 2024-06-18
Rev Recd Date: 2024-07-27

Available Online: 2025-06-09

Publish Date: 2025-06-09

Abstract

Abstract

To improve the separation efficiency and optimize the performance of the start-up separator, this paper designs a new type of startup separator with a corrugated plate separation structure as the research object and conducts simulation and experimental studies on the separation characteristics of the new separator. The software Fluent is employed for numerical simulation calculations, using a combined approach of overall simulation and local equivalence. The Eulerian two-phase flow model is utilized to simulate the separation efficiency of the gas-liquid two-phase fluid inside the start-up separator, with the corrugated plate region replaced equivalently using a porous media model in the overall simulation process. The separation characteristics of the corrugated plate in the start-up separator are investigated, and the influence of inlet gas-liquid flow velocity on separation efficiency is analyzed. The feasibility of the simulation method is verified through cold-state experiments. The results demonstrate that the combination of overall simulation with local equivalence simulation is a viable and effective approach. The introduction of a corrugated plate structure in the novel startup separator significantly enhances its separation performance. Furthermore, the study establishes the relationship between the inlet gas-phase and liquid-phase velocities and the separation efficiency of the startup separator. The findings show that increasing the inlet gas-phase velocity results in a decrease in separation efficiency, whereas increasing the inlet liquid-phase velocity improves the separation efficiency. Throughout the computational process, the separation efficiency of the novel startup separator remains consistently above 99%. The corrugated plate separation structure plays a pivotal role in improving separation efficiency, thereby optimizing the overall separation performance of the startup separator.
- Start-up separator,
- Corrugated plate,
- Separation efficiency,
- Porous media

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References(14)

References

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