• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Thermal engineering >Experimental investigation of a new method for advanced fast reactor shutdown cooling
【24h】

Experimental investigation of a new method for advanced fast reactor shutdown cooling

机译：一种先进的快速反应堆停堆冷却新方法的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We consider a new method for fast reactor shutdown cooling using a decay heat removal system (DHRS) with a check valve. In this method, a coolant from the decay heat exchanger (DHX) immersed into the reactor upper plenum is supplied to the high-pressure plenum and, then, inside the fuel subassemblies (SAs). A check valve installed at the DHX outlet opens by the force of gravity after primary pumps (PP-1) are shut down. Experimental studies of the new and alternative methods of shutdown cooling were performed at the TISEY test facility at OKBM. The velocity fields in the upper plenum of the reactor model were obtained using the optical particle image velocimetry developed at the Institute of Applied Physics (Russian Academy of Sciences). The study considers the process of development of natural circulation in the reactor and the DHRS models and the corresponding evolution of the temperature and velocity fields. A considerable influence of the valve position in the displacer of the primary pump on the natural circulation of water in the reactor through the DHX was discovered (in some modes, circulation reversal through the DHX was obtained). Alternative DHRS designs without a shell at the DHX outlet with open and closed check valve are also studied. For an open check valve, in spite of the absence of a shell, part of the flow is supplied through the DHX pipeline and then inside the SA simulators. When simulating power modes of the reactor operation, temperature stratification of the liquid was observed, which increased in the cooling mode via the DHRS. These data qualitatively agree with the results of tests at BN-600 and BN-800 reactors.
机译：我们考虑使用带有止回阀的衰减排热系统（DHRS）快速反应堆停机冷却的新方法。在这种方法中，来自衰减热交换器（DHX）的浸入到反应堆上部气室中的冷却剂被提供给高压气室，然后被提供给燃料组件（SA）内部。关闭主泵（PP-1）后，通过重力打开安装在DHX出口处的止回阀。在OKBM的TISEY测试设施进行了新的替代冷却方法的实验研究。使用在应用物理研究所（俄罗斯科学院）开发的光学粒子图像测速仪获得了反应堆模型上部气室中的速度场。该研究考虑了反应堆自然循环的发展过程和DHRS模型以及温度和速度场的相应演变。发现主泵置换器中的阀位置对反应器中水通过DHX的自然循环有相当大的影响（在某些模式下，通过DHX获得了循环逆转）。还研究了DHX出口处没有外壳且带有打开和关闭止回阀的替代DHRS设计。对于打开的止回阀，尽管没有外壳，但一部分流量是通过DHX管道供应的，然后再通过SA仿真器供应。在模拟反应堆运行的功率模式时，观察到液体的温度分层，通过DHRS在冷却模式下温度分层。这些数据在质量上与BN-600和BN-800反应堆的测试结果一致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号