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CATE: A code for activated corrosion products evaluation of water-cooled fusion reactor

机译：CATE：水冷聚变反应堆活性腐蚀产物评估的规范

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摘要

Activated corrosion products (ACPs) are the dominant source of radiation hazard in water-cooled fusion reactor, and determine the occupational radiation exposure during maintenance. In this paper, a code named CATE (Corrosion, Activation, and Transport Evaluation) was developed to simulate the production and transport process of ACPs in the cooling loops of fusion reactor, especially for CFETR of China in the future. In the first version of CATE, a two-phase homogeneous model was built up, and the main behavior of ACPs, including corrosion, release, dissolution, deposition, purification, activation and decay, were covered in this model. The classical method of Runge-Kutta was adopted to solve the model numerically. Moreover, for getting high calculation efficiency, a special treatment on the short-life nuclides and the adaptive time step algorithm were implemented in CATE. Then the divertor cooling loop and LIM-OBB cooling loop of ITER were adopted for code test. After providing the input parameters, involving material, water chemistry, thermal hydraulics and neutronics, CATE gave the composition and activity of ACPs respectively in coolant and on pipe wall. These results were compared with those of two other codes PACTITER and TRACT, and presented a good consistency of the total ACPs activity with PACTITER (about 30% difference between CATE and PACTITER). The two-phase homogeneous model in CATE is efficient for analyzing the mean ACPs characteristic of the loop, but cannot simulate the space distribution of ACPs, which is also important, so a multi-node model is under developing to improve the analysis ability of CATE. (C) 2015 Elsevier B.V. All rights reserved.
机译：活化腐蚀产物（ACP）是水冷聚变反应堆中主要的辐射危害源，它决定了维护期间的职业性辐射暴露。本文开发了一个名为CATE（腐蚀，活化和运输评估）的代码，以模拟聚变反应堆冷却回路中ACP的生产和运输过程，尤其是将来对中国的CFETR。在CATE的第一个版本中，建立了一个两相均质模型，该模型涵盖了ACP的主要行为，包括腐蚀，释放，溶解，沉积，纯化，活化和衰减。采用经典的Runge-Kutta方法对模型进行数值求解。此外，为了获得较高的计算效率，在CATE中对短寿命核素和自适应时步算法进行了特殊处理。然后采用ITER的分流器冷却回路和LIM-OBB冷却回路进行代码测试。在提供了涉及材料，水化学，热力学和中子学的输入参数后，CATE分别给出了冷却剂和管壁中ACP的组成和活性。将这些结果与其他两个代码PACTITER和TRACT的结果进行了比较，并显示了与PACTITER的总ACP活性具有良好的一致性（CATE和PACTITER之间相差约30％）。 CATE中的两相齐次模型可以有效地分析环路的平均ACP特性，但不能模拟ACP的空间分布，这一点也很重要，因此正在开发多节点模型以提高CATE的分析能力。 （C）2015 Elsevier B.V.保留所有权利。

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  • 来源
    《Fusion Engineering and Design》 |2015年第11期|340-344|共5页
  • 作者

    Li Lu; Zhang Jingyu; Song Wen; Fu Yu; Xu Xin; Chen Yixue;

  • 作者单位

    North China Elect Power Univ, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Sch Nucl Sci & Engn, Beijing, Peoples R China;

    North China Elect Power Univ, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Beijing 102206, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Activated corrosion products; Water-cooled fusion reactor; Computer simulation; CATE;

    机译：活化腐蚀产物;水冷聚变反应堆;计算机仿真;CATE;

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