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Safety of a Light Water Cooled Reactor Operating at Supercritical Pressure

机译:在超临界压力下运行的轻水冷却反应堆的安全性

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摘要

The concept of supercritical water cooled reactors is developted for the innovation toward cost reduction. Design and safety features of the reactor and the plant system are described. The reactor coolant system is the once-through direct-cycle. It is different from those of BWR and PWR. It is the simplest, but no natural circulation is established when main feedwater pumps are stopped. Safety system was designed based on the transient and accident analyses. Turbine driven auxiliary feedwater systems are provided for fast core cooling at LOSP. This reduces the capacity of emergency diesel generators in spite of the high system pressure. Accumulators are required for cooling the tight lattice core at LOCA. Safety of the reactor is evaluated by simplified PSA. The core damage frequency is maintained as the same level of Japanese conventional BWR due to the deversity of feedwater systems in the direct-cycle reactors.
机译:超临界水冷反应堆的概念是为降低成本而开发的。描述了反应堆和工厂系统的设计和安全特征。反应堆冷却剂系统是一次直接循环。它不同于BWR和PWR。这是最简单的方法,但是在关闭主给水泵时不会建立自然循环。基于瞬态和事故分析设计了安全系统。提供涡轮驱动的辅助给水系统,用于在LOSP处进行快速堆芯冷却。尽管系统压力高,这仍会降低应急柴油发电机的能力。需要使用蓄电池来冷却LOCA处的紧密晶格芯。反应器的安全性通过简化的PSA进行评估。由于直接循环反应器中给水系统的变化,堆芯损坏的频率保持与日本常规BWR相同的水平。

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  • 来源
  • 会议地点 Orlando FL(US)
  • 作者单位

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, JAPAN;

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, JAPAN;

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, JAPAN;

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, JAPAN;

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, JAPAN;

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, JAPAN;

    Nuclear Engineering Research Laboratory, The University of Tokyo, 3-1, Hongo 7-Chome, Bunkyo-ku, Tokyo, 113, J;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 反应堆安全与控制;
  • 关键词

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