Research on Single-phase Inter-tube Pulsation Characteristics in Inverted U-tube of Steam Generator Based on Single-phase Compressible Model

Li Zhenzhong; Ma Zaiyong; Zhang Duo; Bu Shanshan; Sun Wan; Zhang Luteng; Zhu Longxiang

doi:10.13832/j.jnpe.2022.05.0056

Volume 43 Issue 5

Oct. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(5): 56-62

Li Zhenzhong, Ma Zaiyong, Zhang Duo, Bu Shanshan, Sun Wan, Zhang Luteng, Zhu Longxiang. Research on Single-phase Inter-tube Pulsation Characteristics in Inverted U-tube of Steam Generator Based on Single-phase Compressible Model[J]. Nuclear Power Engineering, 2022, 43(5): 56-62. doi: 10.13832/j.jnpe.2022.05.0056

Citation:

Li Zhenzhong, Ma Zaiyong, Zhang Duo, Bu Shanshan, Sun Wan, Zhang Luteng, Zhu Longxiang. Research on Single-phase Inter-tube Pulsation Characteristics in Inverted U-tube of Steam Generator Based on Single-phase Compressible Model[J]. Nuclear Power Engineering, 2022, 43(5): 56-62. doi: 10.13832/j.jnpe.2022.05.0056

Citation:

Li Zhenzhong, Ma Zaiyong, Zhang Duo, Bu Shanshan, Sun Wan, Zhang Luteng, Zhu Longxiang. Research on Single-phase Inter-tube Pulsation Characteristics in Inverted U-tube of Steam Generator Based on Single-phase Compressible Model[J]. Nuclear Power Engineering, 2022, 43(5): 56-62. doi: 10.13832/j.jnpe.2022.05.0056

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Research on Single-phase Inter-tube Pulsation Characteristics in Inverted U-tube of Steam Generator Based on Single-phase Compressible Model

doi: 10.13832/j.jnpe.2022.05.0056

Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, 400044, China

Received Date: 2021-10-25
Rev Recd Date: 2022-01-07
Publish Date: 2022-10-12

Abstract

Abstract

The inter-tube pulsation under single phase condition can make the backflow of inverted U-tube steam generator occur in advance, thus threatening its safety. In order to explore the inter-tube pulsation characteristics under single phase, based on the single-phase compressible model, the effects of tube length, primary side inlet temperature and pressure, secondary side temperature and heat transfer coefficient on the single-phase inter-tube pulsating critical velocity are studied numerically. The results show that when the tube length is short, the critical velocity increases significantly with the increase of tube length, and the longer the inverted U-tube is, the greater the critical velocity is. The increase of temperature and pressure at the inlet of the primary side will increase the critical velocity, making the single-phase inter-tube pulsation more likely to occur. The increase of the heat transfer coefficient on the secondary side will decrease the critical velocity corresponding to the single-phase inter-tube pulsation. However, the influence of the secondary side temperature on the critical velocity is non-single-valued. With the increase of the secondary side temperature, the critical velocity first increases and then decreases.
- Inverted U-tube,
- Single-phase inter-tube pulsation,
- Critical velocity,
- Numerical analysis

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References(23)

References

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