Research on the radioactive safety of industrial steam supplied by PWR nuclear power plant

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

Progress in Nuclear Energy Pub Date : 2024-10-19 DOI:10.1016/j.pnucene.2024.105489

Lu Li, Junnan Zhang, Dachao Lin, Mi Xu, Qingning Zuo, Jingyun Huang, Xiaoping Bai, Qiming Wei, Da Zhang

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Abstract

The heating source of the nuclear power steam supply installation is PWR secondary steam, but the secondary steam is potentially radioactive, and the radioactive material may migrate to the industrial steam, which goes through the leakage of the heat exchanger. Compared with the conventional industrial steam, the steam supplied by the nuclear power has potential radioactivity. Nuclear power is first introduced to produce the industrial steam, in order to analyze the specific activity and radiation effects of the industrial steam on the staffs at the user side, an analytical model of industrial steam radioactivity is developed based on the technological process of industrial steam under operating conditions, and then the exposure pathways of the staff at the user side from the industrial steam is analyzed. The specific activity of the industrial steam and the exposure dose of the staff is evaluated. According to the evaluation results, it can be seen that the dose to staff caused by the industrial steam is far smaller than the radiation impact on the public caused by the nuclear power plant, and can meet the requirements of relevant regulations and standards. Therefore from the radiation safety point of view, the industrial steam supplied by the nuclear power steam supply installation is safe and acceptable for industrial use.

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压水堆核电站工业蒸汽放射性安全研究

核电蒸汽供应装置的加热源是压水堆二次蒸汽，但二次蒸汽具有潜在的放射性，放射性物质可能通过热交换器的泄漏迁移到工业蒸汽中。与传统的工业蒸汽相比，核电供应的蒸汽具有潜在的放射性。首先引入核电来生产工业蒸汽，为了分析工业蒸汽的比活度和对用户端工作人员的辐射影响，根据工业蒸汽在运行条件下的工艺流程，建立了工业蒸汽放射性分析模型，然后分析了用户端工作人员从工业蒸汽中暴露的途径。评估了工业蒸汽的比活度和工作人员的暴露剂量。根据评估结果可以看出，工业蒸汽对工作人员造成的剂量远小于核电站对公众造成的辐射影响，能够满足相关法规和标准的要求。因此，从辐射安全的角度来看，核电蒸汽供应装置供应的工业蒸汽是安全的，可用于工业用途。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.