| 核电站不同严重事故序列下的MCCI及其缓解措施计算分析 |
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| 引用本文： | 高泉源.核电站不同严重事故序列下的MCCI及其缓解措施计算分析[J].核动力工程,2007,28(3):103-106. |
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| 作者姓名： | 高泉源 |
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| 作者单位： | 苏州热工研究院有限公司,江苏苏州,215004 |
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| 摘 要： | 概述了MEDICS程序的主要机理和模型,介绍了利用MEDICS程序进行严重事故下堆芯熔融物与混凝土相互作用(MCCI)的计算方法,并给出了大亚湾核电站全厂断电、小破口失水事故、大破口失水事故等典型初因事故导致的严重事故下的MCCI及其缓解措施的计算分析结果.计算结果表明,在无缓解措施情况下,安全壳底板熔穿时间在10.08～13.4d范围内,H2的产生量在12760～13159kg范围内;顶部冷却是较好的MCCI缓解措施,能明显延长安全壳底板熔穿时间、降低H2和总不可凝气体释放量.
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| 关 键 词： | 核电站 严重事故 堆芯熔融物与混凝土相互作用 MEDICS程序 缓解措施 |
| 文章编号： | 0258-0926（2007）03-0103-04 |
| 修稿时间： | 2006-06-202006-12-26 |
Calculations and Analysis of Molten Core-Concrete Interaction and Its Mitigation Measures under Severe Accidents |
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| GAO Quan-yuan.Calculations and Analysis of Molten Core-Concrete Interaction and Its Mitigation Measures under Severe Accidents[J].Nuclear Power Engineering,2007,28(3):103-106. |
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| Authors: | GAO Quan-yuan |
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| Affiliation: | Suzhou Nuclear Power Research Institute Ltd., Suzhou, Jiangsu, 215004, China |
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| Abstract: | This paper describes the major mechanism and model of MEDICS code, introduces the calculation methods of the molten core-concrete interaction under severe accidents with MEDICS code, and gives the calculation results of MCCI under severe accidents and its mitigation measures. The calculation results indicate that the top cooling is an effective mitigation measures to MCCI. It can obviously delay the melt-through time of containment base, and largely reduce the total H2 and non-condensible gases release. |
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| Keywords: | Nuclear power plant Severe accident MCCI MEDICS code Mitigation measures |
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