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首页> 外文期刊>Nuclear fusion >Development of a systematic, self- consistent algorithm for the K-DEMO steady-state operation scenario
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Development of a systematic, self- consistent algorithm for the K-DEMO steady-state operation scenario

机译：针对K-DEMO稳态操作场景开发系统，自洽的算法

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摘要

An optimum plasma pressure/current density profile and corresponding heating/current drive (H/CD) determination scheme is newly developed by integrating equilibrium, stability, confinement, and H/CD, self-consistently subject to maximize the fusion gain for Korean fusion demonstration reactor (K-DEMO) steady-state operation scenarios. The integrated plasma modeling package, FASTRAN/IPS, is adopted for the integrated numerical apparatus. The target pressure profile with a pedestal structure is investigated by varying its peaking, pedestal height and width as a first step. Formation of stable equilibria is evaluated by solving the Grad-Shafranov equation and checking linear MHD stability. For the case of potentially stable equilibrium, required external heating distribution is calculated by considering both power balance and external current drive alignment to reproduce the pressure profile of the stable equilibrium. Electron/ion temperature and poloidal flux evolutions are solved with the derived heating configuration to find a steady-state scenario and achieve self-consistent plasma profiles. A self-consistent target steady-state pressure and current profile parameters are proposed through designed systematic algorithm with fusion power P_F = 2070 MW, fusion gain Q = 19.7, and normalized beta fa = 2.8 at toroidal field B_T — 7.4 T and plasma current I_P = 15.5 MA. Feasibility of fusion power P_F = 3000 MW operation is also explored with enhanced density and temperature limit assumption.
机译：通过平衡，稳定，约束和H / CD的整合，新开发了一种最佳的等离子压力/电流密度分布图和相应的加热/电流驱动（H / CD）测定方案，这些一致性始终如一地最大化了韩国聚变示范的聚变增益反应堆（K-DEMO）稳态运行方案。集成的数值模型采用了集成的等离子体建模软件包FASTRAN / IPS。第一步，通过改变其峰值，基座高度和宽度来研究具有基座结构的目标压力曲线。通过求解Grad-Shafranov方程并检查线性MHD稳定性来评估稳定平衡的形成。对于可能稳定的平衡，需要通过考虑功率平衡和外部电流驱动校准来计算所需的外部热量分布，以重现稳定平衡的压力曲线。利用导出的加热配置可解决电子/离子温度和极向通量的演变，以找到稳态情况并获得自洽的等离子体轮廓。通过设计的系统算法，提出了一个自洽的目标稳态压力和电流分布参数，该算法在环形场B_T_ 7.4 T和等离子体电流I_P下具有聚变功率P_F = 2070 MW，聚变增益Q = 19.7和归一化beta fa = 2.8 = 15.5 MA。聚变功率P_F = 3000 MW运行的可行性也通过提高密度和温度极限假设来探讨。

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  • 来源
    《Nuclear fusion》 |2017年第12期|408-414|共7页
  • 作者

    J.S. Kang; J.M. Park; L. Jung; S.K. Kim; J. Wang; C.Y. Lee; D. H. Na; K. Im; Y.-S. Na; Y.S. Hwang;

  • 作者单位

    Seoul National University, Seoul, Republic of Korea;

    Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States of America;

    National Fusion Research Institute, Daejeon, Republic of Korea;

    Seoul National University, Seoul, Republic of Korea;

    Seoul National University, Seoul, Republic of Korea;

    Seoul National University, Seoul, Republic of Korea;

    Seoul National University, Seoul, Republic of Korea;

    National Fusion Research Institute, Daejeon, Republic of Korea;

    Seoul National University, Seoul, Republic of Korea;

    Seoul National University, Seoul, Republic of Korea;

  • 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

    K-DEMO; self-consistent algorithm; steady-state scenario; integrated modeling; FASTRAN;

    机译：K-DEMO;自洽算法稳态情况;集成建模;法斯特兰;

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