Analysis of Disturbance Resisting Ability of Dual-Loop Natural Circulation System under Asymmetrical Conditions

Deng Shengwen; Zhu Enping; Zhao Pengcheng; Zhai Pengdi; Liu Zijing; Yu Qingyuan

doi:10.13832/j.jnpe.2021.06.0044

Volume 42 Issue 6

Dec. 2021

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Deng Shengwen, Zhu Enping, Zhao Pengcheng, Zhai Pengdi, Liu Zijing, Yu Qingyuan. Analysis of Disturbance Resisting Ability of Dual-Loop Natural Circulation System under Asymmetrical Conditions[J]. Nuclear Power Engineering, 2021, 42(6): 44-49. doi: 10.13832/j.jnpe.2021.06.0044

Citation:

Deng Shengwen, Zhu Enping, Zhao Pengcheng, Zhai Pengdi, Liu Zijing, Yu Qingyuan. Analysis of Disturbance Resisting Ability of Dual-Loop Natural Circulation System under Asymmetrical Conditions[J]. Nuclear Power Engineering, 2021, 42(6): 44-49. doi: 10.13832/j.jnpe.2021.06.0044

Citation:

Deng Shengwen, Zhu Enping, Zhao Pengcheng, Zhai Pengdi, Liu Zijing, Yu Qingyuan. Analysis of Disturbance Resisting Ability of Dual-Loop Natural Circulation System under Asymmetrical Conditions[J]. Nuclear Power Engineering, 2021, 42(6): 44-49. doi: 10.13832/j.jnpe.2021.06.0044

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Analysis of Disturbance Resisting Ability of Dual-Loop Natural Circulation System under Asymmetrical Conditions

doi: 10.13832/j.jnpe.2021.06.0044

1.
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, 421001, China
2.
Cooperative Innovation Center for Nuclear Fuel Cycle Technology & Equipment, University of South China, Hengyang, Hunan, 421001, China

Received Date: 2020-09-29
Rev Recd Date: 2021-06-04
Publish Date: 2021-12-09

Abstract

Abstract

Natural circulation lead-cooled fast reactor heat exchangers operate under the harsh environment of high temperature, high pressure difference, high density and high corrosion, which can easily induce heat transfer tube rupture and blockage accidents, resulting in asymmetric thermal load or asymmetric resistance operation of the reactor. It has an important impact on the safe and stable operation of the reactor. This paper takes the lead-cooled dual-loop natural circulation system as the research object, and uses a non-dimensional analysis method to derive the theoretical solution of the natural circulation flow of the dual-loop system; then carries out the disturbance characteristics analysis of the natural circulation system under different thermal load differences or resistance differences, using the fitting approximation method to establish the natural circulation characteristic parameters that characterize the anti-disturbance ability, and get the best anti-disturbance interval. The research results show that when the system introduces some thermal load and resistance disturbance, the loop flow does not change greatly, and the system has strong anti-disturbance ability.
- Natural circulation,
- Asymmetrical condition,
- Dual-Loop,
- Anti-disturbance ability

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References(15)

References

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