Analysis of Control Rod Dropping and Buffering Behavior of Supercritical Water-Cooled Reactor Based on Dynamic Grid Technology

Xiao Cong; Luo Ying; Zhang Hongliang; LIu Xiao; Du Hua; HuanG Kedong; MO Chao

doi:10.13832/j.jnpe.2017.S2.0079

Volume 38 Issue S2

Feb. 2025

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Xiao Cong, Luo Ying, Zhang Hongliang, LIu Xiao, Du Hua, HuanG Kedong, MO Chao. Analysis of Control Rod Dropping and Buffering Behavior of Supercritical Water-Cooled Reactor Based on Dynamic Grid Technology[J]. Nuclear Power Engineering, 2017, 38(S2): 79-83. doi: 10.13832/j.jnpe.2017.S2.0079

Citation:

Xiao Cong, Luo Ying, Zhang Hongliang, LIu Xiao, Du Hua, HuanG Kedong, MO Chao. Analysis of Control Rod Dropping and Buffering Behavior of Supercritical Water-Cooled Reactor Based on Dynamic Grid Technology[J]. Nuclear Power Engineering, 2017, 38(S2): 79-83. doi: 10.13832/j.jnpe.2017.S2.0079

Citation:

Xiao Cong, Luo Ying, Zhang Hongliang, LIu Xiao, Du Hua, HuanG Kedong, MO Chao. Analysis of Control Rod Dropping and Buffering Behavior of Supercritical Water-Cooled Reactor Based on Dynamic Grid Technology[J]. Nuclear Power Engineering, 2017, 38(S2): 79-83. doi: 10.13832/j.jnpe.2017.S2.0079

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Analysis of Control Rod Dropping and Buffering Behavior of Supercritical Water-Cooled Reactor Based on Dynamic Grid Technology

doi: 10.13832/j.jnpe.2017.S2.0079

1. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China;
2. Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2017-10-20
Rev Recd Date: 2017-11-23

Abstract

Abstract

Dynamic simulation analysis of the control rod dropping behavior of the supercritical water-cooled reactor（SCWR） is carried out based on the dynamic mesh technology of computational fluid dynamics（CFD） in this paper. And the characteristic parameters and characteristic curves of the control rod drop are obtained by calculation. The results show that the control rod dropping time can meet the requirements of safety analysis of the reactor, but impact of control rod is too large to damage the structure of control rod drive line. Based on the above results, the optimization design of the control rod drive line structure is further studied, and the hydraulic buffer structure is added, which reduces the control rod dropping terminal velocity effectively.
- Supercritical water-cooled reactor（SCWR）,
- Control rod drive line,
- Dynamic mesh,
- Control rod dropping time,
- Buffer