• Title/Summary/Keyword: Journal of the Korean Nuclear Society

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Comparative Study of Dose Evaluation of Liquid Effluent in Nuclear Power Plants for Radiological Impact on the Environment Review

  • Seokju Hwang;Si-Young Kim;Deuk-Man Kim;Young Hwan Hwang;Jungkwon Son
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.22 no.1
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    • pp.45-54
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    • 2024

  • Currently, off-site dose calculations for nuclear power plants are conducted using a computer program (K-DOSE 60). The program is developed based on the regulatory guidelines of the Korea Institute of Nuclear Safety (KINS), which is a domestic nuclear regulatory agency. In this study, a domestic application of the International Atomic Energy Agency (IAEA) TRS (Technical Reports Series)-472 methodology for 3H and 14C in liquid effluents was studied. The dose-evaluation methods adopted and the program configuration for dose evaluation are described based on 3H and 14C in the liquid-effluent-evaluation module of the computer program. The accuracy of the program is verified by comparing the program-calculated results with hand calculation values. Furthermore, a comparative evaluation with LADTAP II, which is a liquid-effluent-evaluation methodology developed by the U.S. NRC (Nuclear Regulatory Commission), is performed. The result confirms that the program-calculated results for the IAEA TRS-472 methodology are consistent with the hand calculation values. Meanwhile, the result of comparative evaluation with LADTAP II indicates different results depending on the methodology used.

  • https://doi.org/10.7733/jnfcwt.2024.006 인용 PDF

Nuclear Accidents, Risk Communication, and Politics of Expertise: Centered on Fukushima Nuclear Accident (원전사고와 위험커뮤니케이션, 전문성의 정치: 후쿠시마 원전사고를 중심으로)

  • Kang, Yun-Jae
    • Journal of Engineering Education Research
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    • v.15 no.1
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    • pp.35-44
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    • 2012

  • This paper analyzes characteristics and discourses related with the risk communication of Fukushima nuclear disaster. I try to pick up and analyze the three strategies of Korean government's and expert system's risk communication, and then understand the relationship between them and the role of expert system in the risk communication and the politics of expertise.

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Earthquake response of a core shroud for APR1400

  • Jhung, Myung Jo;Choi, Youngin;Oh, Chang-Sik
    • Nuclear Engineering and Technology
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    • v.53 no.8
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    • pp.2716-2727
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    • 2021

  • The core shroud is one of the most important internal components of the reactor vessel internals because it meets the neutron fluence directly emitted by the nuclear fuel. In particular, dynamic effects for an earthquake should be evaluated with respect to the neutron irradiation flux. As a prerequisite to this study, simplified and detailed finite element models are developed for the core shroud using the ANSYS Design Parametric Language. Using the El Centro earthquake, seismic analyses are performed for the simplified and detailed core shroud models. Modal characteristics are obtained and their results are used for a time history analysis. Response spectrum analyses are also performed to access the degree of seismic excitation. The results of these analyses are compared to investigate the response characteristics between the simplified and detailed core shroud models from the time history and response spectrum analyses.

  • https://doi.org/10.1016/j.net.2021.02.007 인용 PDF KSCI

The role of tolerance and self-sufficiency in a nation's adoption of nuclear power generation: A search for a quick and simple indicator

  • Roh, Seungkook
    • Nuclear Engineering and Technology
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    • v.51 no.3
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    • pp.904-907
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    • 2019

  • Nuclear energy remains one of the world's major energy sources, making up over 10% of global electricity generation in 2017. Public acceptance of nuclear energy is essential for its adoption. From a practical perspective, it is beneficial to have a simple indicator that can predict the actual adoption of nuclear energy. Based on practical experience, the authors suggest tolerance and self-sufficiency as potential indicators that may predict the adoption of nuclear energy. By evaluating the cross-sectional data of 18 countries in 2013, this research assesses the actual impact of tolerance and self-sufficiency on public acceptance in order to identify the validity of the two variables. The results indicate that the two variables are statistically significant, while public acceptance is insignificant in explaining national adoption of nuclear energy. This may be because tolerance reflects national willingness to accept potential risk, while self-sufficiency explains a government's likelihood of developing non-carbon energy sources.

  • https://doi.org/10.1016/j.net.2018.11.008 인용 PDF KSCI