Numerical Investigation of LBE Flow and Heat Transfer Characteristics in Helical-coiled Tube Bundles with Different Coil Strategies

Shen Cong; Liu Maolong; Cheng Kun; Liu Limin; Xu Ziyi; Gu Hanyang

doi:10.13832/j.jnpe.2023.S1.0057

Volume 44 Issue S1

Jun. 2023

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Shen Cong, Liu Maolong, Cheng Kun, Liu Limin, Xu Ziyi, Gu Hanyang. Numerical Investigation of LBE Flow and Heat Transfer Characteristics in Helical-coiled Tube Bundles with Different Coil Strategies[J]. Nuclear Power Engineering, 2023, 44(S1): 57-61. doi: 10.13832/j.jnpe.2023.S1.0057

Citation:

Shen Cong, Liu Maolong, Cheng Kun, Liu Limin, Xu Ziyi, Gu Hanyang. Numerical Investigation of LBE Flow and Heat Transfer Characteristics in Helical-coiled Tube Bundles with Different Coil Strategies[J]. Nuclear Power Engineering, 2023, 44(S1): 57-61. doi: 10.13832/j.jnpe.2023.S1.0057

Citation:

Shen Cong, Liu Maolong, Cheng Kun, Liu Limin, Xu Ziyi, Gu Hanyang. Numerical Investigation of LBE Flow and Heat Transfer Characteristics in Helical-coiled Tube Bundles with Different Coil Strategies[J]. Nuclear Power Engineering, 2023, 44(S1): 57-61. doi: 10.13832/j.jnpe.2023.S1.0057

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Numerical Investigation of LBE Flow and Heat Transfer Characteristics in Helical-coiled Tube Bundles with Different Coil Strategies

doi: 10.13832/j.jnpe.2023.S1.0057

1.
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
2.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-12-02
Rev Recd Date: 2023-05-08
Publish Date: 2023-06-15

Abstract

Abstract

Helical tube once-through steam generators (H-OTSG) are widely used in the design of liquid metal reactors, in which adjacent radial tube bundles can be coiled in the same direction or opposite direction, and different coil strategies will affect the flow behavior on the shell side of the steam generator. To explore the lead-bismuth eutectic (LBE) flow and heat transfer characteristics in helical tube bundles with different coil strategies, the shear stress transport (SST k-ω) model, turbulence model and Kays turbulent Prandtl number (Pr_t) model are used for numerical simulation. First, the numerical method is validated by existing experiments of liquid metal flow cross tube banks. Then, helical-coiled tube bundles with the same coiling direction and alternate coiling direction are established, and the differences in heat transfer and flow resistance are compared. Finally, the reason for the differences is analyzed from the perspective of the flow field. The results show that the flow resistance and heat transfer in the helical-coiled tube bundle with alternate coiling direction are 7.1% and 4.4% higher than those with the same coiling direction respectively. This is due to the stronger turbulent mixing and more uniform velocity field in the alternate-coiled bundle.
- Helical tube once-through steam generator (H-OTSG),
- Lead-bismuth eutectic,
- Coiling direction,
- Numerical simulation

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References(14)

References

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