核燃料现代化过程中核安全与生态安全的快速分析方法

IF 0.4 Q4 GEOSCIENCES, MULTIDISCIPLINARY
V. Skalozubov, Sergii І. Мelnik, V. Vashchenko, Іrina B. Korduba, Vitalii Yu. Hrib
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引用次数: 0

摘要

给出了核安全分析的原始方法。该方法是在充分解释核电站现代化过程中燃料元件和核燃料包壳温度随安全条件变化的基础上提出的。分析了核燃料和结构材料包壳的温度限制。提出了一种基于核安全分析保守准则的方法。根据燃料元件及其包壳温度得到了安全条件。该方法基于核安全分析的保守准则,不需要使用特殊代码对所有可能的序列进行建模。因此,大大减少了计算研究量。此外,该方法确保了对各种初始事件和条件的核安全变化表达评估以及核燃料设计的修改和/或变化的准则方法的快速适应。根据核能的国际经验,运行的核电站及其系统类型的非极化对确保核与辐射安全条件,对其竞争力和运行效率都有不利影响。考虑到捷克共和国和芬兰的成功经验,乌克兰已经启动并继续实施一项计划,使西屋公司的核燃料组件多样化,用于vver型反应堆的反应堆工厂。根据乌克兰的核立法,反应堆设施的任何现代化,包括核燃料组件的多样化,都需要对确保核和辐射安全条件进行额外的分析。使用传统的确定性代码安全分析方法对这种情况下可能发生的全部紧急情况进行建模是有限的,因为代码和代码用户的差异可能产生负面影响,这表明了这项工作的重要性和相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The method of express analysis of nuclear and ecological safety during the modernization of nuclear fuel
The original method for the nuclear safety analysis is given. The method is based on an adequate interpretation of the safety conditions changes based on the temperature of fuel elements and nuclear fuel claddings in the process of the nuclear power plants modernization. The temperature limitations for nuclear fuel and cladding made of structural material are analyzed. A method based on the nuclear safety analysis conservative criteria is proposed. The safety conditions according to the fuel element and its cladding temperature are obtained. The proposed method is based on conservative criteria of nuclear safety analysis and does not require modeling of all possible sequences using special codes. Therefore, the computational research amount is significantly reduced. In addition, the method ensures a rapid adaptation of the criteria method for the nuclear safety changes express assessment for various initial events and conditions, as well as modifications and/or changes in the nuclear fuel design. In accordance with the international experience of nuclear energy, the mo- nopolization of the types of operated nuclear power plants and their systems has a negative impact both on ensuring the conditions for nuclear and radiation safety, and on their competitiveness and operational efficiency. Taking into account the successful experience ofthe Czech Republic and Finland, Ukraine has launched and continues a program to diversify fuel assemblies of Westinghouse nuclear fuel for reactor plants with VVER-type reactors. In accordance with the nuclear legislation of Ukraine, any modernization of reactor facilities, including the diversification of nuclear fuel assemblies, requires an additional analysis of ensuring nuclear and radiation safety conditions. The use of traditional methods of safety analysis by deterministic codes for modeling the entire range of possible emergency situations in such a situation is limited due to the possible negative influence of the effects of differences in codes and users of codes, which indicates the importance and relevance of the work.
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来源期刊
Journal of Geology Geography and Geoecology
Journal of Geology Geography and Geoecology GEOSCIENCES, MULTIDISCIPLINARY-
自引率
40.00%
发文量
57
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