| 压水堆SBLOCA事故环路水封清除现象机理与模型影响研究 |
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| 引用本文： | 朱东来,杨军,周夏峰,邓程程,丁书华,李仲春,黄涛.压水堆SBLOCA事故环路水封清除现象机理与模型影响研究[J].核动力工程,2022,43(1):28-34. |
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| 作者姓名： | 朱东来 杨军 周夏峰 邓程程 丁书华 李仲春 黄涛 |
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| 作者单位： | 1.华中科技大学能源与动力工程学院，武汉，430074 |
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| 基金项目： | 装备预先研究项目（321020403XX）； |
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| 摘 要： | 环路水封清除（LSC）是压水堆冷管段小破口失水事故（SBLOCA）的典型事故特征之一。为确定LSC现象的物理模型影响，探究准确复现LSC现象的物理模型设置，从LSC现象物理机理的角度，对影响LSC的主要物理模型进行梳理和分析。结合LOBI台架SBLCOA系列实验，对LSC现象物理机理、物理模型影响进行模拟和验证。结果表明，在对影响LSC现象的物理模型进行合理设置后，RELAP5程序模型能较好地复现LOBI台架实验工况中的LSC现象，验证了LSC现象物理模型影响及模型设置的合理性。
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| 关 键 词： | 压水堆失水事故 冷管段小破口 环路水封清除 物理模型影响 |
| 收稿时间： | 2020-12-17 |
Study on Mechanism and Model Influence of Loop Seal Clearing in PWR SBLOCA Accident |
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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. |
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| Authors: | Zhu Donglai Yang Jun Zhou Xiafeng Deng Chengcheng Ding Shuhua Li Zhongchun Huang Tao |
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| Affiliation: | 1.School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China2.Research Institute of Nuclear Power Operation, Wuhan, 430073, China3.Nuclear Power Institute of China, Chengdu, 610213, China |
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| 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. |
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| Keywords: | PWR loss of coolant accident Small break in cold leg Loop seal clearing(LSC) Influence of the physical model |
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