Analysis schemes to evaluate HELB-induced blast waves

IF 3.3 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Progress in Nuclear Energy Pub Date : 2025-02-17 DOI:10.1016/j.pnucene.2025.105665

Tae-Yong Kim, Yoon-Suk Chang

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引用次数: 0

Abstract

High energy line breaks (HELBs) have been postulated as a design basis event for protection of major structures, systems and components in nuclear power plants (NPPs). However, it was recently pointed out that plausible phenomena such as blast wave and structural resonance caused by jet impact need to be carefully evaluated. In this context, the present study investigates analysis schemes for evaluating the blast wave effects during design stage of new reactors. At first, three types of comparative analyses were conducted with a focus on the steam generator (SG) in an operating 1400 MWe NPP under a representative HELB scenario, from which the most conservative but reasonable one was identified. As the next step, the adequate scheme was applied for parametric analyses of the SG in a developing 60 MWe NPP considering nine hypothesized conditions. Ultimately, structural behaviors and integrity of the smaller SG according to design acceptance criterion as well as impacts of different pipe diameters and rupture distances on dynamic responses were assessed to discuss capability withstanding the HELB-induced blast waves.

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来源期刊

Progress in Nuclear Energy 工程技术-核科学技术

CiteScore

5.30

自引率

14.80%

发文量

331

审稿时长

3.5 months

期刊介绍： Progress in Nuclear Energy is an international review journal covering all aspects of nuclear science and engineering. In keeping with the maturity of nuclear power, articles on safety, siting and environmental problems are encouraged, as are those associated with economics and fuel management. However, basic physics and engineering will remain an important aspect of the editorial policy. Articles published are either of a review nature or present new material in more depth. They are aimed at researchers and technically-oriented managers working in the nuclear energy field. Please note the following: 1) PNE seeks high quality research papers which are medium to long in length. Short research papers should be submitted to the journal Annals in Nuclear Energy. 2) PNE reserves the right to reject papers which are based solely on routine application of computer codes used to produce reactor designs or explain existing reactor phenomena. Such papers, although worthy, are best left as laboratory reports whereas Progress in Nuclear Energy seeks papers of originality, which are archival in nature, in the fields of mathematical and experimental nuclear technology, including fission, fusion (blanket physics, radiation damage), safety, materials aspects, economics, etc. 3) Review papers, which may occasionally be invited, are particularly sought by the journal in these fields.