Study on Mechanism and Model Influence of Loop Seal Clearing in PWR SBLOCA Accident

Zhu Donglai; Yang Jun; Zhou Xiafeng; Deng Chengcheng; Ding Shuhua; Li Zhongchun; Huang Tao

doi:10.13832/j.jnpe.2022.01.0028

Volume 43 Issue 1

Feb. 2022

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Zhu Donglai, Yang Jun, Zhou Xiafeng, Deng Chengcheng, Ding Shuhua, Li Zhongchun, Huang Tao. Study on Mechanism and Model Influence of Loop Seal Clearing in PWR SBLOCA Accident[J]. Nuclear Power Engineering, 2022, 43(1): 28-34. doi: 10.13832/j.jnpe.2022.01.0028

Citation:

Zhu Donglai, Yang Jun, Zhou Xiafeng, Deng Chengcheng, Ding Shuhua, Li Zhongchun, Huang Tao. Study on Mechanism and Model Influence of Loop Seal Clearing in PWR SBLOCA Accident[J]. Nuclear Power Engineering, 2022, 43(1): 28-34. doi: 10.13832/j.jnpe.2022.01.0028

Citation:

Zhu Donglai, Yang Jun, Zhou Xiafeng, Deng Chengcheng, Ding Shuhua, Li Zhongchun, Huang Tao. Study on Mechanism and Model Influence of Loop Seal Clearing in PWR SBLOCA Accident[J]. Nuclear Power Engineering, 2022, 43(1): 28-34. doi: 10.13832/j.jnpe.2022.01.0028

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Study on Mechanism and Model Influence of Loop Seal Clearing in PWR SBLOCA Accident

doi: 10.13832/j.jnpe.2022.01.0028

1.
School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
2.
Research Institute of Nuclear Power Operation, Wuhan, 430073, China
3.
Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2020-12-17
Rev Recd Date: 2021-04-07
Publish Date: 2022-02-01

Abstract

Abstract

Loop seal clearing (LSC) is one of the typical accident characteristics of cold leg small break loss of coolant accident (SBLOCA) in PWR. In order to determine the influence of the physical model of LSC phenomenon and explore the setting of the physical model for accurately reproducing the LSC phenomenon, this study combs and analyzes the main physical models affecting LSC from the perspective of the physical mechanism of LSC phenomenon. The physical mechanism of LSC phenomenon and the influence of physical model are simulated and verified by SBLOCA series experiments of LOBI bench. The results show that after reasonable setting of the physical model affecting the LSC phenomenon, the RELAP5 program model can better reproduce the LSC phenomenon in the LOBI bench experiment, which verifies the rationality of the physical model influence and model setting of the LSC phenomenon.
- PWR loss of coolant accident,
- Small break in cold leg,
- Loop seal clearing (LSC),
- Influence of the physical model

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References(11)

References

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