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Scaled experiment for Loss of Vacuum Accidents in nuclear fusion devices: Experimental methodology for fluid-dynamics analysis in STARDUST facility

机译:核聚变设备中真空事故损失的规模化实验:STARDUST设施中流体动力学分析的实验方法

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摘要

A recognized safety issue for future fusion reactors fueled with deuterium and tritium is the generation of sizeable quantities of dust. Activated dust mobilization during a Loss of Vacuum Accidents (LOVA) is one of the safety concerns for the International Thermonuclear Experimental Reactor (ITER). Intense thermal loads in fusion devices occur during plasma disruptions, Edge Localized Modes (ELM) and Vertical Displacement Events (VDE). They will result in macroscopic erosion of the plasma facing materials and consequent accumulation of activated dust into the ITER Vacuum Vessel (VV). In order to perform thermo-fluid dynamic analysis a small facility, Small Tank for Aerosol Removal and Dust (STARDUST), was set up at the University of Rome "Tor Vergata", in collaboration with ENEA Frascati laboratories. This facility simulates low pressurization rates (100Pa/s, 300 Pa/s and 500 Pa/s) due to LOVA events in ITER due to a small air inlet at different internal pressure conditions and wall temperatures. The authors will present the experimental results in order to analyze the influence of different pressurization rates in the variation of thermo-fluid dynamic conditions that are strictly connected to dust mobilization.
机译:未来的以氘和tri为燃料的聚变反应堆公认的安全问题是产生大量的粉尘。国际热核实验反应堆(ITER)的安全隐患之一是在真空事故(LOVA)发生期间激活的粉尘动员。在等离子体破裂,边缘局部化模式(ELM)和垂直位移事件(VDE)期间,聚变设备中会产生强烈的热负荷。它们将导致面对等离子体的材料发生宏观腐蚀,并因此导致活性粉尘积聚到ITER真空容器(VV)中。为了进行热流体动力学分析,与ENEA Frascati实验室合作在罗马大学“ Tor Vergata”建立了一个小型设施,用于气溶胶去除和除尘的小型罐(STARDUST)。由于在不同的内部压力条件和壁温下的进气口较小,由于在ITER中发生LOVA事件,因此该设施模拟了低增压速率(100Pa / s,300 Pa / s和500 Pa / s)。作者将提供实验结果,以分析不同增压率对严格与粉尘运动有关的热流体动态条件变化的影响。

著录项

  • 来源
    《Recent researches in mechanics》|2011年|p.142-147|共6页
  • 会议地点 Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR)
  • 作者单位

    University of Rome 'Tor Vergata', Faculty of Engineering, Department of Mechanical Engineering, Quantum Electronics and Plasma Physics Research Group, Via del Politecnico 1, 00133 Rome, Italy;

    University of Rome 'Tor Vergata', Faculty of Engineering, Department of Mechanical Engineering, Quantum Electronics and Plasma Physics Research Group, Via del Politecnico 1, 00133 Rome, Italy;

    University of Rome 'Tor Vergata', Faculty of Engineering, Department of Mechanical Engineering, Quantum Electronics and Plasma Physics Research Group, Via del Politecnico 1, 00133 Rome, Italy;

    University of Rome 'Tor Vergata', Faculty of Engineering, Department of Mechanical Engineering, Quantum Electronics and Plasma Physics Research Group, Via del Politecnico 1, 00133 Rome, Italy;

    ENEA UTFUS-TEC (Fusion Safety Environment) Via Enrico Fermi, 45, 00044 Frascati (Roma), Italy;

    University of Rome 'Tor Vergata', Faculty of Engineering, Department of Mechanical Engineering, Quantum Electronics and Plasma Physics Research Group, Via del Politecnico 1, 00133 Rome, Italy;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械制造工艺;
  • 关键词

    ITER; velocity; flow field; LOVA; pressurization rate; STARDUST;

    机译:ITER;速度;流场爱增压率标准;

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