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Generalized Lawson criterion for magnetic fusion applications in space

机译:太空中磁融合应用的广义Lawson准则

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摘要

In this work a generalized burn criterion for thermonuclear fusion reactors for space is derived. It considers not only the most important subsystems distinguishing terrestrial from astronautic magnetic confinement fusion technology but also features like a variable hot ion mode, a variable fuel ratio and a ratio coupling fusion product ions confinement time with energy confinement time. The modeling is based on a power density flux model. Solving the energy and particle balance equations for the triple product, an analytical expression for a more general burn criterion is obtained. The results for commonly studied reactant couples (D-T; D-~3He; ~3He-~3He;~(11)B-p) for a given energy confinement time and a given fusion product confinement time ratio are presented. Based on that, an exemplary comparative system mass analysis is performed. Within the frame of a thermally heated fusion plasma with a hot ion mode <2, the assessment shows that the purely aneutronic ~3He-~3He reaction is most impractical for space applications and that there are important technological challenges to be met in the case of the ~(11)B-p reaction. A generic system mass model is evaluated. Model improvements for future research activities are pointed out.
机译:在这项工作中,得出了空间热核聚变反应堆的一般燃烧判据。它不仅考虑了区分陆地和航天磁约束聚变技术的最重要子系统,而且还考虑了可变热离子模式,可变燃料比以及将聚变产物离子约束时间与能量约束时间耦合的比率等特征。该建模基于功率密度通量模型。通过求解三重积的能量和粒子平衡方程,可以得到更通用的燃烧准则的解析表达式。给出了在给定的能量限制时间和给定的聚变产物限制时间比率下,常用研究的反应物对(D-T; D-〜3He;〜3He-〜3He;〜(11)B-p)的结果。基于此,进行示例性比较系统质量分析。在热离子模式<2的热熔融聚变等离子体的框架内,评估表明,对于空间应用而言,纯中子〜3He-〜3He反应最不切实际,并且在以下情况下还需要应对重要的技术挑战: 〜(11)Bp反应。评估了通用系统质量模型。指出了未来研究活动的模型改进。

著录项

  • 来源
    《Fusion Engineering and Design》 |2012年第1期|p.30-38|共9页
  • 作者单位

    Institute of Space Systems, Universitaet Stuttgart, Pfaffenwaldring 29, 70569 Stuttgart, Germany;

    Institute of Space Systems, Universitaet Stuttgart, Pfaffenwaldring 29, 70569 Stuttgart, Germany;

    Institute of Space Systems, Universitaet Stuttgart, Pfaffenwaldring 29, 70569 Stuttgart, Germany;

    CASPER, Baylor University, One Bear Place #97310, Waco, TX 76798-7310, USA;

    Institute of Space Systems, Universitaet Stuttgart, Pfaffenwaldring 29, 70569 Stuttgart, Germany;

  • 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

    fusion technology; burn criterion; nuclear fusion for spacecraft;

    机译:融合技术燃烧标准;航天器核聚变;
  • 入库时间 2022-08-18 00:39:17

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