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首页> 外文期刊>Energy Conversion & Management >Solitary breeding/burning waves in a supercritical water cooled fast reactor
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Solitary breeding/burning waves in a supercritical water cooled fast reactor

机译：超临界水冷快堆中的孤生繁殖波/燃烧波

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摘要

This paper demonstrates a possible application of the so-called CANDLE concept, namely solitary breeding/burning wave concept, in a supercritical water cooled fast reactor (SCWFR). The high enthalpy increment and the large density variation of the supercritical water through the core are favourable to this concept. However, based on an SCWFR design, it is found that only the Th-U conversion cycle offers the possibility of a solitary breeding/burning wave without using a burnable poison. A one-group diffusion equation coupled with simplified burn-up equations is investigated for the burn-up drift wave problem, where the coupling with the thermal hydraulics of the supercritical water, especially the dependence of microscopic cross sections on the water density, and consequently on the neutron fluence, is also taken into account. A specific example of the solitary breeding/burning wave in the one-dimensional case is obtained numerically and presented in this paper. The asymptotic burn-up is about 33 at.%. Besides usual advantages of the CANDLE concept, e.g. low reactivity swing and high fuel utilization, the negative coolant feedback is an inherent feature of this kind of reactor concept.
机译：本文演示了所谓的烛光概念（即孤岛繁殖/燃烧波概念）在超临界水冷快堆（SCWFR）中的可能应用。穿过核的超临界水的高焓增量和大密度变化有利于该概念。然而，基于SCWFR设计，发现仅Th-U转化循环提供了不使用可燃毒物的单独繁殖/燃烧波的可能性。研究了燃耗漂移波问题的一类扩散方程和简化燃耗方程，其中燃耗与超临界水的热力学耦合，特别是微观截面对水密度的依赖性，因此在中子注量上，也要考虑在内。通过一维数值计算获得了一个单独的繁殖/燃烧波的具体例子，并在本文中进行了介绍。渐进燃耗约为33 at。％。除了CANDLE概念的通常优势外，例如低反应性摆动和高燃料利用率，负冷却剂反馈是这种反应堆概念的固有特征。

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  • 来源
    《Energy Conversion & Management》 |2010年第9期|P.1792-1798|共7页
  • 作者

    X.-N. Chen; D. Zhang; W. Maschek; T. Schulenberg;

  • 作者单位

    Institute for Nuclear and Energy Technologies, Karlsruhe Institute of Technology, P.O.B. 3640, D-76021 Karlsruhe, Germany;

    Institute for Nuclear and Energy Technologies, Karlsruhe Institute of Technology, P.O.B. 3640, D-76021 Karlsruhe, Germany School of Nuclear Science and Technology, Xi'an Jiaotong University, 28 West Xian Ning Road. Xi'an, Shaanxi 710049, China;

    rnInstitute for Nuclear and Energy Technologies, Karlsruhe Institute of Technology, P.O.B. 3640, D-76021 Karlsruhe, Germany;

    rnInstitute for Nuclear and Energy Technologies, Karlsruhe Institute of Technology, P.O.B. 3640, D-76021 Karlsruhe, Germany;

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

    breeding/burning wave; diffusion model; burn-up equations; neutronic and thermal hydraulic coupling; supercritical water cooled fast reactor (SCWFR);

    机译：繁殖/燃烧波;扩散模型燃尽方程;中子和热力液力偶合器;超临界水冷快堆（SCWFR）;

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